You would be joining one of our 3 Mobile platform teams, which set the technical direction and provide the shared foundations, tools and standards that enable engineers to build, release and evolve the app safely and quickly.

Key technologies include: Kotlin, Coroutines, Jetpack Compose, Dagger, SOLID principles with a huge focus on quality and clean code.

As an Engineer at Trainline, you will:

• Be a part of a cross-functional team that will contribute to the design and implementation of our software in the product for Android users.
• Appreciate the value of agile and of engineering practices, and solid, clean code.
• Be actively involved in all aspects of the product lifecycle.
• Work closely with the team and Product to help drive & deliver roadmaps.
• Help to build and deliver software using Agile practices (SCRUM, two weeks iterations), continuous integration and pair programming.
• Be delivering new functionalities and features, using the best tools and techniques for the job.

We'd love to hear from you if you:

• Have good working experience with Kotlin
• Are enthusiastic for a great user experience
• Have a passion for continuous delivery
• Have experience working with Git
• Have solid grasp of Design Patterns, SOLID & Clean Code Principles, CI/CD

Enjoy fantastic perks like private healthcare & dental insurance, a generous work from abroad policy, 2-for-1 share purchase plans, an EV Scheme to further reduce carbon emissions, extra festive time off, and excellent family-friendly benefits.

We're operating a hybrid model and ask that Trainliners work from the office a minimum of 60% of their time over a 12-week period. We also have a 28-day Work from Abroad policy.

Job Data by YubHub.

Responsibilities:

• Develop, launch, and scale paid search campaigns across EU markets, optimising for performance and growth
• Support the wider Paid Search team to run go-to-market campaigns for new launches from start to finish
• Deliver an always-on testing programme across ads, landing pages, and other areas
• Explore and apply AI tools and automation to improve how we build, optimise, and analyse campaigns
• Analyse campaign performance and test results, turning them into clear insights and practical recommendations
• Take ownership of your work with a high degree of autonomy, managing several priorities at once with care and attention to detail
• Work with large data sets to spot trends, solve problems, and uncover opportunities to grow our market share
• Collaborate with colleagues across the business to share learnings

Requirements:

• Fluency in English and strong communication skills
• Hands-on experience running and optimising Google Ads and Microsoft Ads accounts
• A solid understanding of digital marketing tactics, particularly how the Google auction works and automated bidding
• Confidence working with large data sets in Excel
• Curiosity and enthusiasm for using AI to work smarter
• A growth mindset and enthusiasm for developing your skills

Benefits:

• Private healthcare and dental insurance
• Generous work from abroad policy
• 2-for-1 share purchase plans
• EV Scheme to further reduce carbon emissions
• Extra festive time off
• Excellent family-friendly benefits

Job Data by YubHub.

As an Account Executive at Trainline, you will be responsible for nurturing partnerships with major B2B clients, ensuring they achieve success with our technology and that Trainline continues to grow as their trusted digital rail partner.

Key responsibilities:

• Provide day-to-day support to an assigned portfolio of Trainline Partner Solutions customers
• Build and manage successful customer relationships, becoming a trusted advisor for our partners
• Identify growth opportunities and execute them with the help of the team
• Get involved in ad-hoc projects and business support as needed
• Support on development and managing a customer communication plan
• Negotiation and renewal of existing customer contracts

Requirements:

• 1-2 years’ experience in Account Management, Customer Success, or Partnership Management, ideally within rail, business travel technology, or the travel space
• Fluency in English. Additional languages such as French, Spanish, German and/or Italian is advantageous
• Ability to build and maintain strong client relationships with enterprise or strategic partners
• Proven experience in managing multiple client workstreams and priorities
• Strong communication skills – written and verbal
• Confidence with your ability to find your way in ambiguous situations
• Passion for the rail industry, business travel, and sustainable mobility
• Experience using Salesforce in an account management/sales environment

Benefits:

• Private healthcare & dental insurance
• Generous work from abroad policy
• 2-for-1 share purchase plans
• EV Scheme to further reduce carbon emissions
• Extra festive time off
• Excellent family-friendly benefits
• Clear career paths
• Transparent pay bands
• Personal learning budgets
• Regular learning days

Job Data by YubHub.

We’re Europe’s leading independent rail platform, helping millions of travellers find and book the best-value rail and coach journeys across our app, website and partner channels. Our job is to make the green travel choice the best choice.

As the Lead Product Designer, Pricing & Value, you will help define how customers should feel when using our product, so they are confident they are getting the best value for their journey. You will lead design across a set of pricing and value initiatives, balancing strategic thinking with hands-on, high-quality execution.

Responsibilities:

• Help define how customers should feel when using our product
• Lead design across a set of pricing and value initiatives
• Shape experiences that celebrate the savings we help customers make
• Work closely with Product, Engineering and Data partners to explore, validate and deliver experiences
• Collaborate with other Product Designers in the Value space and the wider Product and Design community
• Share clear, compelling stories that bring colleagues together around complex problems
• Explore how AI-enabled tools and workflows can improve the speed and effectiveness of how we design

Requirements:

• Significant experience leading Product Design or UX within complex, consumer-facing digital products
• Experience designing journey-based, real-time or service-oriented experiences
• Strong hands-on design skills, including high proficiency in Figma
• A history of using research, insight and data-informed experimentation to improve outcomes
• Confidence designing across channels, ideally with a focus on mobile apps
• Excellent communication and storytelling skills
• A proactive mindset and a collaborative approach with Product, Engineering and Operational teams

Benefits:

• Private healthcare & dental insurance
• Generous work from abroad policy
• 2-for-1 share purchase plans
• An EV Scheme to further reduce carbon emissions
• Extra festive time off
• Excellent family-friendly benefits

Job Data by YubHub.

You will implement and evolve infrastructure with Terraform, following existing module patterns while spotting opportunities to improve quality, maintainability, and automation.

Your responsibilities will include:

• Delivering complex improvements to Trainline's engineering platforms
• Implementing and evolving infrastructure with Terraform
• Applying least-privilege and secure-by-default principles consistently across our AWS accounts
• Building and improving automation, services, and tooling in Node.js or Python
• Supporting and reviewing the work of other engineers
• Working with Tech Leads, Delivery Managers, and cross-functional stakeholders to shape delivery plans
• Raising risks, blockers, and quality concerns early
• Testing, validating, and deploying infrastructure changes through CI/CD pipelines

We are looking for someone with substantial professional experience as a software engineer, writing code in Python, Node.js, C#, or a similar programming language.

Requirements include:

• Solid knowledge of software engineering best practice
• Hands-on experience with AWS services such as ECS, Lambda, CloudFront, IAM, and S3
• History of delivering infrastructure with Terraform or another infrastructure as code tool
• Confident understanding of DevOps practices and CI/CD
• Experience using AI tooling in your day-to-day work
• Experience of delivering results in agile, delivery-focused teams
• Curious mindset and the ability to pick up new technologies quickly

We offer a salary range of £80K – £90K, plus fantastic benefits including private healthcare, dental insurance, a generous work from abroad policy, and excellent family-friendly benefits.

Job Data by YubHub.

Responsibilities:

• Take a leading technical role in helping teams across Trainline adopt and operate ML and AI tooling
• Support AI infrastructure, working with teams building internal platforms and customer-facing products
• Build and drive adoption of standard ways to deploy ML and AI products
• Automate modernisation of services across products
• Strengthen MLOps foundations by improving cost tracking, reducing costs, and addressing security vulnerabilities
• Contribute to technical strategy and communicate technical decisions clearly
• Mentor fellow engineers and share knowledge

Requirements:

• Hands-on experience with IaC and CI/CD tooling (e.g. Terraform, GitHub Actions)
• Experience with containerised workloads using Docker and cloud platforms (e.g. AWS, GCP, Azure)
• Experience productionising AI products, including agentic systems and AIOps tooling
• Experience with managed or self-hosted ML infrastructure (e.g. Amazon SageMaker, feature stores)
• Experience writing production-quality, tested Python code
• Clear communication and prioritisation skills

Nice to haves:

• Knowledge of cloud topics such as networking fundamentals and identity and access management
• Experience with Trainline's wider tech stack and partners

Benefits:

• £80K – £107.5K salary
• Private healthcare and dental insurance
• Generous work from abroad policy
• 2-for-1 share purchase plans
• EV Scheme
• Extra festive time off
• Excellent family-friendly benefits

Job Data by YubHub.

You will implement infrastructure changes with Terraform, following existing module patterns and suggesting ideas to improve quality, maintainability and automation.

You will apply least-privilege and secure-by-default principles across our AWS accounts, helping our infrastructure meet Trainline's standards for security and operational excellence.

You will build and improve automation, services and tooling in Node.js or Python to make delivery faster, safer and more repeatable.

You will learn and grow with your colleagues through code reviews, pairing and shared knowledge, giving and receiving constructive feedback along the way.

You will work with Tech Leads, Delivery Managers and cross-functional colleagues to understand priorities, plan your work and manage dependencies.

You will raise risks, blockers and questions early, helping the team keep delivery moving at a sustainable pace.

You will test, validate and deploy infrastructure changes through CI/CD pipelines, making sure they are robust, well documented and ready for production.

The Infrastructure Engineering and Tooling team, also known as Atlas, owns the ecosystem used to deploy, run and manage services across the Trainline platform.

The team works across Terraform, AWS, Node.js, C# and Python.

Benefits include:

• Private healthcare and dental insurance
• Generous work from abroad policy
• 2-for-1 share purchase plans
• An EV Scheme to further reduce carbon emissions
• Extra festive time off
• Excellent family-friendly benefits
• Clear career paths
• Transparent pay bands
• Personal learning budgets
• Regular learning days

Job Data by YubHub.

The Mobile team builds the travel companion in your pocket, allowing users to travel smart. You will work on the mobile app and buy-flow process, using key technologies such as Kotlin, Coroutines, Jetpack Compose, Dagger, and SOLID principles, with a focus on quality and clean code.

Responsibilities:

• Contribute to the design and implementation of software for Android users
• Work closely with the team and Product to drive and deliver roadmaps
• Build and deliver software using Agile practices, continuous integration, and pair programming
• Deliver new functionalities and features using the best tools and techniques for the job

Requirements:

• Good working experience with Kotlin
• Enthusiasm for a great user experience
• Passion for continuous delivery
• Experience working with Git
• Solid grasp of Design Patterns, SOLID & Clean Code Principles, CI/CD

Benefits:

• £55K – £70K salary
• Private healthcare and dental insurance
• Generous work from abroad policy
• 2-for-1 share purchase plans
• EV Scheme to reduce carbon emissions
• Extra festive time off
• Excellent family-friendly benefits
• Clear career paths and transparent pay bands
• Personal learning budgets and regular learning days

Job Data by YubHub.

We're Europe's leading independent rail platform, helping millions of travellers find and book the best-value rail and coach journeys across our app, website and partner channels.

Our job is to make the green travel choice the best choice. By building a better train travel experience, we help more people choose rail - creating a positive impact for customers, our business and the planet.

We're a team of more than 1,000 Trainliners from over 50 nationalities, working across London, Paris, Barcelona, Milan, Edinburgh and Madrid. Now is a brilliant time to join us and help shape the future of travel.

Introducing Machine Learning & AI at Trainline

Machine learning and AI are at the core of how Trainline is transforming travel, helping millions of customers make smarter, more sustainable journeys every day. Our ML models and AI solutions power critical aspects of our platform, including:

• Advanced search and recommendations capabilities across our mobile and web applications
• Pricing and routing optimisations to find the best fares for customers
• Personalised user experiences enhanced by agentic AI
• Data-driven digital marketing systems
• AI agents improving customer support

Our machine learning teams own the complete delivery lifecycle from ideation to production. We work closely with stakeholders across the business to expand the understanding and impact of machine learning and AI throughout Trainline.

About The Role

We are looking for Machine Learning Engineers to join our team help shape the future of train travel. You'll be joining a high-performing, deeply technical community of Machine Learning Engineers, Data Scientists, and Data Engineers to tackle complex problems by combining Trainline's rich datasets with cutting edge algorithms. What unites our team is an expertise in the field, a love of what we do and the desire to create impactful solutions to support Trainline's goals of encouraging sustainable travel.

As a part of Trainline you will be joining an environment where learning and development is top priority. You will have the opportunity to work with fellow ML & AI enthusiasts on large-scale production systems, delivering highly impactful products that make a difference to our millions of customers.

As a Machine Learning Engineer at Trainline you will...

• Work in cross-functional teams combining data scientists, software, data and machine learning engineers, and product managers
• Design and deliver machine learning models and/or AI solutions at scale that drive measurable impact for Trainline
• Own the full end-to-end machine learning delivery lifecycle including data exploration, feature engineering, model selection and tuning, offline and online evaluation, deployments and maintenance
• Partner with stakeholders to propose innovative data products that leverage Trainline's extensive datasets and state of the art algorithms
• Create the tools, frameworks and libraries that enables the acceleration of our ML & AI products delivery and improve our workflows
• Take an active part in our AI and ML community and foster a culture of rigorous learning and experimentation

We'd love to hear from you if you...

• Have an advanced degree in Computer Science, Mathematics, Statistics or a similar quantitative discipline
• Are proficient with Python, including open-source data libraries (e.g Pandas, Numpy, Scikit learn etc.)
• Have experience productionising machine learning models and/or AI solutions
• Are an expert in one of predictive modelling, classification, regression, optimisation, NLP algorithms or recommendation systems
• Have experience with Spark
• Have knowledge of DevOps technologies such as Docker and Terraform and ML Ops practices and platforms like ML Flow
• Have experience with agile delivery methodologies and CI/CD processes and tools
• Have a broad understanding of data extraction, data manipulation and feature engineering techniques
• Are familiar with statistical methodologies
• Have great communication skills

Nice to have:

• Experience with transport industry and/or geographical information systems (GIS)
• Experience with cloud infrastructure
• Experience with Large Language Models (fine tuning, RAG, agents)
• Experience with graph technology and/or algorithms

More information:

Enjoy fantastic perks like private healthcare & dental insurance, a generous work from abroad policy, 2-for-1 share purchase plans, an EV Scheme to further reduce carbon emissions, extra festive time off, and excellent family-friendly benefits.

We prioritise career growth with clear career paths, transparent pay bands, personal learning budgets, and regular learning days. Jump on board and supercharge your career from day one!

We're operating a hybrid model and ask that Trainliners work from the office a minimum of 60% of their time over a 12-week period. We also have a 28-day Work from Abroad policy.

Our values represent the things that matter most to us and what we live and breathe everyday, in everything we do:

• Think Big - We're building the future of rail
• Own It - We focus on every customer, partner and journey
• Travel Together - We're one team
• Do Good - We make a positive impact

Job Data by YubHub.

Your main focus will be on driving impact within the product team, drawing on whatever analytical and statistical techniques that will unlock the most benefits. You will:

• Develop deep understanding of product experiences and opportunities for growth.
• Actively contribute to roadmap and goals for the product team.
• Drive regular cross-functional team reviews to measure progress toward goals.
• Discover and articulate new product opportunities helping shape the team's direction.
• Support product experiments, launches, growth through data-driven decision making while keeping the team accountable and impactful.
• Define focus through metrics to enable a broad spectrum of learning from experimentation/release cycles.

We'd love to hear from you if you have:

• 5+ years commercial experience using data science and analytics to drive business decisions.
• Ability to distil and communicate results of complex analysis clearly and effectively to all levels including senior management.
• Experience of product engagement evaluation and measurement of success.
• Ability to navigate data sets of varying complexity/ambiguity and conduct analysis to derive clear insights and actionable results.
• Experience using AI to responsibly accelerate coding for analysis.
• Strong PowerPoint and presentation/communication skills.
• Strong data visualisation skills using tools like Tableau, Spotfire, Power BI etc.
• Expertise in predictive modelling, including both parametric and non-parametric techniques.
• Tech Stack: SQL, Python, R, Tableau, AWS Athena + More!

Enjoy fantastic perks like private healthcare & dental insurance, a generous work from abroad policy, 2-for-1 share purchase plans, an EV Scheme, extra festive time off, and excellent family-friendly benefits.

Job Data by YubHub.

As a Senior Data Scientist, you will take ownership of investigations and solutions that span search, supply and commerce, working with detailed datasets and linking data sources to support projects across pillars.

Responsibilities:

• Work across search, supply and commerce, bringing together diverse datasets to tackle complex problems and deliver projects that span multiple pillars.
• Identify opportunities for our customers and our business, using data to shape solutions and building tools and approaches that make the wider team more effective.
• Develop a deep understanding of the customer experience, getting to the root causes of recurring problems and working cross-functionally to turn insights into lasting improvements.
• Drive continuous improvement by identifying recurring patterns and turning what you learn into reusable tools, frameworks and solutions that reduce investigation time and help the wider team move faster.
• Surface product and commercial opportunities through your analysis, connecting insights to business context and bringing opportunities to the right teams timely to drive action.
• Mentor and guide colleagues across Data and partner teams, helping others build their analytical capability and confidence.
• Partner closely with data scientists, data analysts and cross-functional teams across search, supply, commerce to solve problems that cut across organisational boundaries.
• Navigate competing priorities across multiple areas of the business, bringing structure, clarity and sound judgement to fast-moving and ambiguous situations.

Requirements:

• Substantial experience as a Data Scientist at a senior level, with the confidence, judgement and autonomy that come from having operated at this level before.
• Track record of owning a business or functional area end to end, taking responsibility for identifying opportunities, shaping the analytical approach and driving outcomes.
• Experience working across multiple business areas or domains, navigating competing priorities and adapting your approach to different problems, stakeholders and contexts.
• A strong track record of delivering measurable business impact through product analytics, translating data and insights into decisions and actions that improve customer and business outcomes.
• Strong SQL and Python skills, used confidently to explore, analyse and draw actionable insights from complex datasets.
• Confidence working with large, unfamiliar and diverse datasets, bringing together multiple data sources to build a robust and comprehensive understanding of a problem.
• Experience mentoring and supporting other Data Scientists, helping colleagues develop their technical skills, analytical thinking and approach to problem-solving.

Benefits:

• Enjoy fantastic perks like private healthcare & dental insurance, a generous work from abroad policy, 2-for-1 share purchase plans, an EV Scheme to further reduce carbon emissions, extra festive time off, and excellent family-friendly benefits.
• Prioritise career growth with clear career paths, transparent pay bands, personal learning budgets, and regular learning days.

Job Data by YubHub.

Responsibilities:

• Own the full VAT compliance cycle for the UK, from data gathering and return preparation through to submission, payment, and post-filing review.
• Manage VAT compliance across EU jurisdictions, coordinating with third-party advisers to ensure consistent, accurate, and on-time filing across all territories.
• Lead a structured end-to-end review of the UK VAT process, identifying simplification opportunities and implementing agreed improvements to drive accuracy and efficiency.
• Monitor evolving VAT legislation across relevant territories, proactively assessing risks and opportunities, and translating changes into clear guidance for the business.
• Support the Head of Tax in serving as the primary indirect tax adviser for new product launches, commercial arrangements, and business model changes.
• Communicate complex indirect tax matters clearly and accessibly to non-tax stakeholders.
• Drive automation and process improvement across the tax function.

Requirements:

• Deep, practical VAT expertise, including hands-on experience managing multi-jurisdiction indirect tax compliance.
• A professional qualification such as ACA, CTA, ACCA, or equivalent.
• Strong analytical skills and confidence working with data.
• Excellent communication skills.
• A proactive, solutions-oriented approach.
• Comfort with change and an appetite for process improvement.

Nice to Have:

• Experience with Microsoft D365, Tableau, or GVRT.
• Some exposure to corporation tax, transfer pricing, or employment tax.

Benefits:

• £75K – £85K salary
• Private healthcare & dental insurance
• Generous work from abroad policy
• 2-for-1 share purchase plans
• An EV Scheme
• Extra festive time off
• Excellent family-friendly benefits

Job Data by YubHub.

The Brand team sits at the heart of how Trainline shows up in the world, shaping the perceptions of millions of customers, building lasting brand equity, and ensuring everything we put out is as distinctive and purposeful as the product behind it.

As Interim Senior Brand Manager, you will:

• Translate global brand and proposition strategy into locally relevant, growth-driving execution, ensuring our brand platform is embedded consistently across all customer touchpoints.
• Own the end-to-end development and delivery of integrated campaigns from brief to launch, balancing short-term commercial needs with long-term brand building.
• Lead and challenge creative agency partners to produce standout, distinctive work, acting as the internal champion for courageous, high-quality creative across every brief, review, and execution.
• Drive strong go-to-market execution for key product and proposition launches, ensuring cohesive and impactful delivery across all brand touchpoints.
• Set clear campaign objectives and partner with Data Science and Insights to embed robust measurement, testing, and optimisation from the outset.
• Own UK brand tracking, translating insight into clear action and continuously improving campaign effectiveness and return on investment.
• Manage the UK brand budget with strong financial discipline, maintaining high standards across briefing, creative appraisal, and execution governance.
• Line manage and coach junior members of the team, building a culture of high standards, considered risk-taking, and test-and-learn marketing.

We'd love to hear from you if you have:

• Significant experience in brand marketing within a consumer-facing business, with a proven track record of delivering campaigns that are creatively distinctive and commercially effective.
• Strong creative judgment, with the ability to recognise genuinely great work and articulate clearly what makes it land.
• A clear, confident point of view on brand, and the ability to champion that perspective while bringing others on the journey with you.
• Strong commercial acumen, with a solid understanding of how brand investment translates into measurable business growth.
• Experience leading and challenging creative agencies to produce their most distinctive and impactful work.
• A collaborative and influential working style, with the ability to build strong relationships and align stakeholders across teams and at all levels of seniority.
• Comfort working with data, measurement frameworks, and performance analysis, with the ability to turn insight into clear, actionable decisions.
• Ideally, experience line managing or mentoring junior team members, and a genuine commitment to supporting others' development.

In return, you'll enjoy fantastic perks like private healthcare & dental insurance, a generous work from abroad policy, 2-for-1 share purchase plans, an EV Scheme to further reduce carbon emissions, extra festive time off, and excellent family-friendly benefits.

Job Data by YubHub.

Key responsibilities include:

• Taking an insight and data-led approach to proposition development
• Leading the briefing of new research and insight
• Applying behavioural science thinking to shape and test hypotheses
• Being the voice of the brand and customer within the New Business area
• Partnering with Country Managers and local specialist teams to understand market and customer challenges
• Working closely with Product, UX, and Engineering to develop and test propositions
• Collaborating with Senior Brand Managers, Creative Studio, and Growth teams to set guidelines for proposition execution
• Defining success metrics for each proposition and tracking its impact

Requirements:

• Experience working in a tech and/or consumer-oriented industry
• A track record of leading projects end-to-end
• A curious, analytical mindset with confidence in developing hypotheses and using data to guide decisions
• Comfort managing and communicating with senior stakeholders
• Strong familiarity with both brand and business performance KPIs
• Experience working within or alongside product marketing teams

Benefits include:

• £65K-£72K salary range
• Bonus offers
• Private healthcare and dental insurance
• Generous work-from-abroad policy
• 2-for-1 share purchase plans
• EV Scheme
• Extra festive time off
• Excellent family-friendly benefits

Job Data by YubHub.

You’ll combine strategic thinking with hands-on execution, owning relationships end-to-end while collaborating cross-functionally to build compelling campaigns that align with client marketing goals.

Responsibilities:

• Proactively identify and engage potential clients and agencies to expand our advertising partner base.
• Own and nurture a portfolio of media agencies and direct clients, acting as a trusted advisor and ensuring high levels of client satisfaction.
• Understand client objectives and deliver data-driven, creative, and impactful advertising proposals across Trainline’s digital channels.
• Collaborate with internal teams to plan, implement, and optimize advertising campaigns, ensuring they meet performance goals and timelines.
• Consistently meet or exceed individual and team sales targets through strategic pipeline management and persuasive negotiation.
• Provide clients with clear performance metrics and actionable insights, demonstrating ROI and highlighting areas for future growth.
• Stay abreast of industry developments, emerging technologies, and competitor activity to inform strategy and spot opportunities.

Requirements:

• Experienced Seller: Proven track record in advertising or media sales, with hands-on experience selling to media agencies and direct clients.
• Digitally Savvy: Strong grasp of digital advertising, including programmatic, display, and native and video formats.
• Persuasive Communicator: Excellent presentation, negotiation, and interpersonal skills, capable of influencing key decision-makers.
• Relationship Builder: Adept at cultivating long-term relationships that drive revenue and foster collaboration.
• Target-Oriented: Self-motivated and goal-driven, with a demonstrable history of exceeding commercial targets.
• Organized & Strategic: Skilled in managing a pipeline using CRM tools (e.g., Salesforce) and able to operate both independently and within a fast-paced team environment.

Benefits:

• £80K – £85K salary
• Commission
• Private healthcare & dental insurance
• Generous work from abroad policy
• 2-for-1 share purchase plans
• EV Scheme
• Extra festive time off
• Excellent family-friendly benefits

Job Data by YubHub.

Responsibilities:

• Agenda management; keep ahead of potential scheduling conflicts; using initiative to find solutions and communicate changes in a timely manner
• Act as a gatekeeper for leaders’ time, balancing strategic priorities with operational realities
• Inbox management and correspondence
• Support leadership rhythms such as planning cycles, QBRs, reviews and offsites
• Travel management including flights, trains, taxis, arranging visas and accommodation
• Creation and execution of cost-effective, detailed travel itineraries
• Event planning both in-house and offsite
• Project support as required
• Support for new staff
• Expense management and reporting
• Work cross-functionally with a wide variety of teams
• Handle sensitive and confidential information with discretion and sound judgment

Requirements:

• Experience supporting at Director/C-Suite level
• A self-starter who has experience working autonomously within a fast-paced Technology focused company with an ever-changing and pressurised environment
• Understand the need to prioritise and plan; however, be agile and comfortable enough to react to ever changing landscapes, business demands, and can make the step change seamlessly in a tech driven organisation
• Accustomed to the demands of multiple Executives requiring conflicting changes simultaneously
• Able to work under pressure to strict deadlines and manage workload effectively under very demanding conditions
• Ability to organise and prioritise with strong attention to detail
• Able to build strong relationships across the business with both internal and external stakeholders
• Strong prioritisation skills and sound judgement
• Excellent written and verbal communication skills

Compensation:

• £65K – £70K • Offers Bonus

Benefits:

• Private healthcare & dental insurance
• Generous work from abroad policy
• 2-for-1 share purchase plans
• An EV Scheme to further reduce carbon emissions
• Extra festive time off
• Excellent family-friendly benefits

Job Data by YubHub.

You will be responsible for building and delivering new features for the Trainline iOS app, with a focus on Trainline Media and helping grow revenue beyond traditional rail ticket sales.

Responsibilities:

• Build and deliver new features for the Trainline iOS app
• Help shape how media, advertising and partner experiences are integrated into the app
• Work closely with Product Managers, Designers and engineers to experiment with new ideas
• Champion quality in everything you and your squad build
• Continuously improve the codebase
• Keep customers at the heart of your decisions
• Spot and help remove obstacles, delays and wasted effort
• Contribute to technical decisions
• Support your teammates through coaching and mentoring

Requirements:

• Hands-on experience building and shipping iOS apps with Swift, SwiftUI and UIKit
• Solid understanding of architectural patterns such as MVVM and Clean Architecture
• Genuine care for quality and for customers
• Thoughtful approach to engineering quality
• Experience working in a cross-functional product team
• Helpful experience with tools and technologies such as SPM, Tuist, New Relic, ELK, Docker, Terraform or GitHub Actions

Benefits:

• £55K – £62K salary
• Private healthcare & dental insurance
• Generous work from abroad policy
• 2-for-1 share purchase plans
• EV Scheme to further reduce carbon emissions
• Extra festive time off
• Excellent family-friendly benefits

Job Data by YubHub.

We’re Europe’s leading independent rail platform, helping millions of travellers find and book the best-value rail and coach journeys across our app, website and partner channels.

Our job is to make the green travel choice the best choice. By building a better train travel experience, we help more people choose rail - creating a positive impact for customers, our business and the planet.

We’re a team of more than 1,000 Trainliners from over 50 nationalities, working across London, Paris, Barcelona, Milan, Edinburgh and Madrid. Now is a brilliant time to join us and help shape the future of travel.

Machine learning and AI are central to how Trainline helps millions of customers make smarter, more sustainable travel choices every day. Our ML models and AI systems power critical parts of the platform - from search and recommendations to pricing intelligence, personalisation, digital marketing, and AI-driven customer support.

Our ML teams own the full delivery lifecycle, from ideation through to production. We work closely with stakeholders across the business to expand the reach and impact of ML and AI throughout Trainline.

This is a senior leadership role sitting within one of Trainline’s most important product areas: Core Experience. This pillar encompasses the products and systems closest to the customer journey - search, pricing, payments, fare intelligence, and conversational interfaces.

You will define and lead the ML strategy, team, and delivery across this domain. That means building and scaling ML and AI capabilities that measurably improve the customer experience and drive business outcomes. The work spans traditional ML systems and emerging agentic/LLM-based capabilities.

You will lead multiple ML teams through their respective team leads, reporting to the Director of AI & ML. You’ll be accountable for the people (2 ML Managers and ~10 ICs), delivery, and budget across your pillar - including vendor and infrastructure cost management. You’ll work closely with Product, Engineering, Data, Analytics, and commercial stakeholders, combining strategic thinking, technical leadership, and organisational leadership to ensure Trainline continues to ship high-quality, scalable ML systems in production.

**As a Head of Machine Learning - Core Experience at Trainline you will...

• Set direction and own the budget. Define the vision, strategy, and roadmap for ML across the Core Experience pillar. Own the pillar’s budget - including cloud infrastructure, vendor costs, and third-party tooling - balancing short-term delivery with longer-term platform investments.

• Lead and grow the organisation. Lead multiple teams through their team leads. Coach managers and senior ICs, set hiring strategy, and build a culture of technical excellence, experimentation, and delivery. Partner closely with Product, Engineering, and commercial stakeholders to identify high-value opportunities and raise adoption of ML across the business.

• Deliver and operate. Drive delivery across search relevance, payments models, splits and fare optimisation, supply automation, and conversational AI. Ensure your teams ship end-to-end - from prototyping through deployment, monitoring, and iteration. Raise operational maturity by defining SLIs/SLOs, incident management, and on-call practices for ML systems in production.

• Shape AI practices and governance. Co-own the operating model for modern AI at Trainline - LLM-based features, agentic systems, evaluation frameworks, and guardrails. Drive improvements in AI governance, data privacy, security, and audit accountability as capabilities scale.

**We'd love to hear from you if you have…

• Significant experience building and leading production ML teams, including managing through team leads (manager-of-managers)

• Strong track record of shipping ML systems that deliver measurable business or customer impact, across problem types such as ranking, recommendation, forecasting, optimisation, or real-time decisioning

• Deep understanding of the full ML lifecycle and strong software/platform instincts - you know what it takes to run reliable ML at scale – including MLOps tooling and practices

• Experience raising operational standards: SLIs/SLOs, monitoring, incident management, and production reliability

• Budget ownership, including infrastructure cost management and vendor oversight

• Comfortable operating at both strategic and technical levels, with strong stakeholder and communication skills

• Experience hiring, mentoring, and developing technical talent at multiple levels

**Nice to have …

• Experience with AWS cloud infrastructure

• Experience with cross-functional delivery in product-led organisations

• Experience deploying conversational and agent-based systems in customer-facing products

• Experience in travel, transport, marketplaces, or similarly complex digital platforms

**Our technology stack …

• Python and associated ML / DS libraries (scikit-learn, NumPy, LightGBM, Pandas, LangChain/LangGraph, TensorFlow, etc.)

• PySpark

• AWS cloud infrastructure: EMR, ECS, Athena, etc

• MLOps / DevOps: Terraform, Docker, Airflow, MLFlow

• Monitoring and evaluation platforms including New Relic and Braintrust

**More information:

Enjoy fantastic perks like private healthcare & dental insurance, a generous work from abroad policy, 2-for-1 share purchase plans, an EV Scheme to further reduce carbon emissions, extra festive time off, and excellent family-friendly benefits.

We prioritise career growth with clear career paths, transparent pay bands, personal learning budgets, and regular learning days. Jump on board and supercharge your career from day one!

We're operating a hybrid model and ask that Trainliners work from the office a minimum of 60% of their time over a 12-week period. We also have a 28-day Work from Abroad policy.

Our values represent the things that matter most to us and what we live and breathe everyday, in everything we do:

• Think Big - We're building the future of rail

• Own It- We focus on every customer, partner and journey

• Travel Together - We're one team

• Do Good - We make a positive impact

Job Data by YubHub.

Responsibilities:

• Provide high-quality first-line support to Trainliners and resolve HR process and policy queries professionally and within agreed SLAs.
• Produce and maintain accurate people data, ensuring high data integrity in our HRIS (HiBob) and that updates are completed promptly.
• Deliver change alongside day-to-day People services by contributing to People Ops projects such as system enhancements, process redesign, and embedding AI-enabled solutions.
• Work with People Business Partners to support cyclical People processes and document and implement employee lifecycle changes.
• Support the preparation, validation, and processing of the monthly UK payroll, ensuring accurate and timely data inputs and alignment between HiBob and payroll workflows.
• Deliver day-to-day benefits administration, managing enrolments and changes accurately and resolving benefit-related issues efficiently.
• Manage employee lifecycle administration, including pre-boarding, contracts, background checks, Right to Work documentation, and visa sponsorship.
• Process People-related invoices and purchase orders accurately, partnering with accounts payable and supporting effective financial administration.
• Support and manage the improvement, implementation, and documentation of People policies, processes, and templates.

Requirements:

• Solid foundation in People Operations and motivated to continue learning and developing in a fast-moving, tech-enabled environment.
• Working understanding of HR best practices, employment law, and core HR processes.
• Experience supporting payroll administration, including maintaining payroll data, running checks, and a working understanding of UK tax, NI, and statutory requirements.
• Comfortable working with HR systems (ideally HiBob or similar HRIS).
• Data-literate, with the ability to produce, interpret, and validate reports.
• Exposure to process and ways-of-working improvement.
• Strong attention to detail, particularly when handling people data, contracts, payroll inputs, or employee records.
• Clear and professional verbal and written communication skills.
• Strong organisational and time-management skills, able to manage competing priorities, balance BAU and project work, and work to agreed SLAs.

Benefits:

• £35K – £40K salary
• Private healthcare and dental insurance
• Generous work from abroad policy
• 2-for-1 share purchase plans
• EV Scheme
• Extra festive time off
• Excellent family-friendly benefits

Job Data by YubHub.

Responsibilities:

• Own the brand marketing plan for the UK market end to end, translating customer insight into a sharp, differentiated proposition that is consistently expressed across every campaign and channel
• Lead the relationship with creative agencies, including briefing, reviewing, and constructively challenging work to ensure it meets a high standard of brand, proposition, and audience relevance
• Use brand tracking, customer research, and market data to shape positioning decisions and measure the impact of brand investment on commercial outcomes
• Partner with Country Managers and commercial stakeholders as a peer, bringing brand-led opportunities and ideas to the table rather than waiting to be briefed
• Protect consistency of tone, identity, and customer experience across markets while adapting intelligently to local culture, seasonal patterns, and competitive context
• Run a tight campaign operation, managing timelines, dependencies, and quality across all brand activity so nothing falls through the cracks
• Stay close to customer perception and competitor positioning in the UK market, using that knowledge to sharpen messaging and identify opportunities for the brand to earn greater relevance
• Champion the value of a strong brand internally, connecting creative investment to commercial performance in a way that resonates with stakeholders who think commercially

Requirements:

• Significant experience in a brand or marketing role that has spanned both strategic responsibility and hands-on campaign execution, ideally within a consumer brand, travel, platform, or e-commerce business
• A proven track record of owning brand marketing plans for a specific market or segment, including positioning, messaging, and brand health measurement
• Strong experience working with creative agencies - briefing confidently, reviewing critically, and pushing back on work to a high standard when needed
• The ability to connect brand investment to commercial outcomes, with a solid understanding of business models and the levers that drive growth
• Demonstrable experience working cross-functionally with commercial, product, and senior stakeholders, operating as a genuine peer rather than a support function
• Proficiency in English, with a strong understanding of local culture and competitive landscape
• Experience using brand tracking, customer research, and market data to inform strategic decisions and demonstrate impact
• Creatively literate and opinionated about what good looks like, with the communication skills to articulate clearly why something is or is not working in terms of brand, proposition, and audience

Benefits:

• Competitive salary: £45K - £50K
• Fantastic perks like private healthcare & dental insurance
• Generous work from abroad policy
• 2-for-1 share purchase plans
• An EV Scheme to further reduce carbon emissions
• Extra festive time off
• Excellent family-friendly benefits
• Clear career paths and transparent pay bands
• Personal learning budgets and regular learning days

Job Data by YubHub.

You will work closely with local market teams, creative colleagues, media agencies, and platform partners to bring our brand to life at scale in digital channels.

Key responsibilities include:

• Leading campaign setup, execution, and optimisation
• Managing day-to-day campaign activities, including trafficking, targeting, pacing, and reporting
• Translating global brand strategy into executable digital campaigns
• Collaborating with creative teams and media agencies to ensure strategic alignment
• Building and maintaining relationships with media owners
• Identifying new channels, formats, and testing opportunities
• Analysing campaign data and providing actionable recommendations

Requirements:

• Solid experience managing paid social and digital brand campaigns
• Strong working knowledge of Meta Ads Manager, TikTok Ads Manager, Snapchat Ads Manager, and Google Ads (YouTube)
• Understanding of upper- and mid-funnel brand-led media strategy
• Experience running campaigns across multiple international markets
• Advanced Excel or Google Sheets skills
• Exceptional organisational skills and attention to detail

Nice to have:

• Familiarity with AI tools, automation, or additional media platforms
• Experience using Tableau or similar tools

We offer a salary range of £40K - £50K, plus fantastic benefits like private healthcare, dental insurance, and a generous work from abroad policy.

Job Data by YubHub.

Responsibilities:

• Provide technical leadership and team ownership, acting as a technical escalation point for the team
• Mentor and upskill junior and mid-level engineers
• Set and maintain quality standards for ticket management, documentation, and technical investigations
• Drive team readiness and identify skill gaps
• Lead by example in attitude, thoroughness, communication, and follow-through

Technical Requirements:

• Advanced administration of Microsoft 365 services, Azure Active Directory, and Identity Management
• Experience with JAMF Pro and Microsoft Intune/Autopilot
• Knowledge of AV/VC hardware and software, including room systems and conferencing platforms
• Understanding of networks, including TCP/IP, DNS, DHCP, LAN, WAN, and wireless
• Experience with scripting languages, including Windows Command Line/PowerShell and Apple Scripting/BASH

Nice to Have:

• Microsoft 365 Certified: Endpoint Administrator Associate (MD-102)
• Microsoft 365 Certified: Administrator Expert or Security Administrator Associate
• Azure fundamentals
• Apple certifications for MacOS: ACSP (ACTC), JAMF 100
• CompTIA A+ or Network+
• ITIL Foundation v4 or V5

What We Offer:

• Competitive salary: £50K - £60K
• Fantastic benefits, including private healthcare and dental insurance
• Generous work from abroad policy
• 2-for-1 share purchase plans
• Extra festive time off and excellent family-friendly benefits

Job Data by YubHub.

• Managing the ticket lifecycle through active dashboard monitoring, workload management, and reporting
• Proactively resolving incidents within SLA, working closely with Tier 3 teams for technical direction and escalation management
• Conducting proactive troubleshooting, diagnostics, and root cause analysis
• Progressing Service Requests with a focus on customer service
• Providing end-user initial engagement through our ITSM ticketing platform, collaboration apps, and onsite Tech Bar
• Managing IT assets, including inventory control, hardware refresh, and secure disposal compliance
• Ensuring seamless on/off-boarding for joiners and leavers, including laptop builds, IT inductions, and IAM compliance
• Providing meeting room AV/VC support and maintaining the health of media services solutions
• Implementing and adhering to security standards in line with ISO standards
• Establishing and maintaining strong relationships across the wider team, key stakeholders, and our Trainline community
• Contributing to and maintaining knowledge management
• Promoting teamwork and knowledge sharing
• Optimising process efficiency through proposed use of automation, AI & ML
• Contributing to audit and compliance reviews

Our tech stack requires solid experience in:

• Windows 11 and Apple ecosystem in an enterprise environment
• Mobile Device Management systems, strategies, and deployments (JAMF & Intune)
• SaaS applications, including M365, Slack, and Atlassian products
• SaaS-based solutions and Cloud migration strategies
• Active Directory & Azure Active Directory
• PCI-DSS, ISO 20071 & IT Governance
• Networks, TCP/IP, DNS, DHCP, including LAN, WAN, and wireless networks
• Basic understanding of Windows Command Line/PowerShell & Apple Scripting/BASH
• Security tools and best practices
• Runbook implementation and development of technical documentation
• ITSM ticketing toolsets, lifecycle ticket management & associated reporting
• Video Conferencing solutions and associated hardware/software
• Modern workplace solutions such as Autopilot, InTune, and MFA
• Platform integrations, SSO/SAML
• Cloud printing solutions

We offer a range of benefits, including:

• Base Salary £40K – £50K
• Private healthcare & dental insurance
• Generous work from abroad policy
• 2-for-1 share purchase plans
• An EV Scheme to further reduce carbon emissions
• Extra festive time off
• Excellent family-friendly benefits

If you have a dynamic and proactive approach to IT Support, exhibit exceptional customer service with a focus on Employee Experience, and resolve issues efficiently, we would love to hear from you!

Job Data by YubHub.

Key responsibilities include:

• Defining and owning the product security roadmap
• Establishing and owning the application security vulnerability management process
• Working with teams across the business to carry out threat modelling for web, mobile and API services
• Assessing the security posture of applications and APIs through code reviews and static and dynamic security testing
• Strengthening the security of iOS and Android apps and the APIs that power them
• Implementing, maintaining and automating security tools to support safe development and operations
• Building secure coding and deployment knowledge across the organisation through training and mentoring

Requirements:

• Significant experience identifying, assessing and mitigating security risks across application design, code and deployed products
• Experience shaping and delivering a product or application security roadmap
• Experience securing mobile applications and APIs
• Hands-on experience with security testing tools such as SAST, DAST and vulnerability scanning solutions
• Practical experience with threat modelling and security reviews
• A strong grasp of secure coding practices and experience embedding security into software development workflows

Benefits include:

• Salary £90K – £100K
• Private healthcare and dental insurance
• Generous work from abroad policy
• 2-for-1 share purchase plans
• EV Scheme to further reduce carbon emissions
• Extra festive time off
• Excellent family-friendly benefits

Job Data by YubHub.

As General Manager, Trainline Media, you will work closely with colleagues across the business, taking the time to understand how Trainline operates and aligning change with its wider priorities.

Responsibilities

• Set the direction for Trainline Media, shaping its proposition, target market and growth priorities so it becomes a trusted travel media offering.
• Take ownership of Trainline Media's revenue targets, working with senior stakeholders to align its goals with wider business priorities.
• Partner with colleagues across Product, Data, PR and Marketing to develop the proposition and bring it to market.
• Represent Trainline Media externally, building awareness and credibility with the media and advertising buying community through an active industry presence.
• Lead and grow a team of more than ten people across sales, advertising operations, client success and strategy, creating a culture where people want to join and develop.
• Design the operating model, processes and measures needed to scale the business, including client delivery and billing, using data and AI tools to help the team work smarter.
• Balance commercial growth with operational effectiveness, so the function delivers sustainably as it grows.

Requirements

• Experience building and scaling a media or advertising function, ideally within a larger, operationally focused consumer technology business.
• A solid understanding of brand media, with the ability to position and grow an emerging proposition.
• Experience leading and growing large teams, and creating an environment where people can do their best work.
• Experience owning revenue targets and designing the processes, operating rhythms and measures that support sustainable, scalable growth.
• Sound judgement in balancing competing priorities, working constructively in a business where advertising is one of several revenue streams, and turning ambiguity into clear priorities and practical action.
• A collaborative, diplomatic leadership style, with the ability to build trust and influence senior stakeholders.
• Curiosity about how data and AI tools can improve the way a team works, and ideally some experience putting them to use.
• An active presence in the media industry, or a keen interest in building one, and the confidence to represent the business externally.

Benefits

• Enjoy fantastic perks like private healthcare & dental insurance, a generous work from abroad policy, 2-for-1 share purchase plans, an EV Scheme to further reduce carbon emissions, extra festive time off, and excellent family-friendly benefits.
• Prioritise career growth with clear career paths, transparent pay bands, personal learning budgets, and regular learning days.

Job Data by YubHub.

Responsibilities:

• Deliver new functionality or features, using the most appropriate tools & techniques
• Ensure quality is at the heart of everything you and your team do
• Continuously improve the code base
• Keep our customer as the number one priority
• Actively identify blockers, boulders, time sinks and waste, and actively attempt to remove them
• Make significant contribution to technical decisions
• Act as a coach and mentor to others in the team
• Take full ownership of the development lifecycle from code to production, including deployment and monitoring

Tech Stack:

• Languages & Frameworks: C# (.NET 6–10)
• Databases: DynamoDB, PostgreSQL
• Cloud & Infrastructure: AWS Cloud, Docker, Terraform
• CI/CD & DevOps: GitHub Actions
• Monitoring & Logging: New Relic, ELK Stack

Requirements:

• Experience mentoring less experienced engineers and comfortable pair-programming with colleagues
• Hands on experience with C# .NET and the latest features
• Experience collaborating with front-end engineers and other disciplines to deliver end-to-end features and cross-functional epics
• Experience working with identity and authentication systems (e.g. IdentityServer, OpenID Connect, OAuth2)
• Experience designing and maintaining CI/CD pipelines (e.g. GitHub Actions, TeamCity, Spacelift or similar tools)
• Experience with cloud platforms (AWS preferred; Azure or GCP also valuable)
• Hands-on experience with Infrastructure as Code, particularly Terraform
• Strong experience with observability practices (logging, monitoring, alerting)
• Familiarity with tools such as New Relic and ELK stack (or equivalents)
• Curiosity about AI and emerging tools
• Experience supporting production systems and improving reliability
• Strong experience building and operating microservices architectures
• Experience with event-driven systems and asynchronous messaging patterns
• Solid understanding of distributed systems and scalability challenges
• Have excellent communication skills

Benefits:

• £85K – £95K salary
• Fantastic perks like private healthcare & dental insurance
• Generous work from abroad policy
• 2-for-1 share purchase plans
• An EV Scheme to further reduce carbon emissions
• Extra festive time off
• Excellent family-friendly benefits

Job Data by YubHub.

We're Europe's leading independent rail platform, helping millions of travellers find and book the best-value rail and coach journeys across our app, website and partner channels.

Our job is to make the green travel choice the best choice. By building a better train travel experience, we help more people choose rail - creating a positive impact for customers, our business and the planet.

Introducing the Trainline Machine Learning and AI Team

Machine learning sits at the heart of Trainline's mission to help millions of people make sustainable travel choices every day. Our models power some of the most important parts of the platform, from search and recommendations across mobile and web, to pricing and routing optimisation, personalised experiences enhanced by generative AI, data-driven marketing, and AI agents that support our customers.

In this role as the Senior Machine Learning Engineer, you will...

• Work within cross-functional teams alongside data scientists, software engineers, data engineers and product managers
• Design and deliver machine learning models at scale that create measurable impact for the business
• Own the end-to-end machine learning delivery lifecycle, including data exploration, feature engineering, model selection and tuning, evaluation, deployment and maintenance
• Shape technical direction for your area, making well-reasoned architectural and modelling decisions that stand up at scale
• Partner with and influence stakeholders across the business to propose innovative data products that make the most of Trainline's extensive datasets and the latest algorithms
• Build tools, frameworks and libraries that accelerate the delivery of ML products and improve team workflows
• Provide technical mentorship and support the development of less experienced engineers, without formal people management responsibility
• Take an active role in our AI and ML community, helping foster a culture of rigorous learning and experimentation

We'd love to hear from you if you have...

• An advanced degree in Computer Science, Mathematics or a related quantitative discipline, or equivalent experience
• Considerable experience productionising machine learning models, with strength in an area such as predictive modelling, classification, regression, optimisation or recommendation systems
• Strong proficiency in Python and open-source data libraries such as Pandas, NumPy and Scikit-learn
• A solid grounding in statistical methodologies, along with data extraction, manipulation and feature engineering techniques
• Experience with Spark, agile delivery methods and CI/CD practices
• Familiarity with DevOps and MLOps tools and practices, such as Docker, Terraform and MLFlow
• Confidence influencing and communicating with stakeholders across technical and non-technical teams
• Ideally, exposure to cloud infrastructure, NLP or large language models (such as fine-tuning, RAG or agents), graph technologies, or experience in the transport sector or with geographic information systems (GIS)

More information:

Enjoy fantastic perks like private healthcare & dental insurance, a generous work from abroad policy, 2-for-1 share purchase plans, an EV Scheme to further reduce carbon emissions, extra festive time off, and excellent family-friendly benefits.

We prioritise career growth with clear career paths, transparent pay bands, personal learning budgets, and regular learning days. Jump on board and supercharge your career from day one!

We're operating a hybrid model and ask that Trainliners work from the office a minimum of 60% of their time over a 12-week period. We also have a 28-day Work from Abroad policy.

Job Data by YubHub.

We're Europe's leading independent rail platform, helping millions of travellers find and book the best-value rail and coach journeys across our app, website and partner channels.

Our job is to make the green travel choice the best choice. By building a better train travel experience, we help more people choose rail - creating a positive impact for customers, our business and the planet.

We're a team of more than 1,000 Trainliners from over 50 nationalities, working across London, Paris, Barcelona, Milan, Edinburgh and Madrid. Now is a brilliant time to join us and help shape the future of travel.

Introducing the Trainline Machine Learning and AI Team

Machine learning is at the heart of Trainline's mission to help millions of people make sustainable travel choices every day. Our models and AI agents support customers when journeys go wrong, power search and recommendations across our apps and website, find the best fares through pricing and routing optimisation, personalise the experience with generative AI, and make our digital marketing smarter. Our teams own the full lifecycle from idea to production, and work closely with colleagues across the business to grow the impact of ML and AI at Trainline.

We're looking for a Machine Learning Engineering Manager to lead a team of 7 ML engineers and data engineers within our Core Experience pillar, which covers Search, Supply and Commerce. Your team's work sits at the centre of how customers find, compare and buy their tickets. You'll be accountable for what your team ships and how it ships it: the quality of the systems, the pace of delivery and the growth of the people building them. You'll work alongside data scientists, software engineers and product managers. You'll stay close enough to the technical work to make good calls on architecture, trade-offs and risk. What unites us is curiosity, a love of what we do and a desire to make sustainable travel the easy choice.

In this role, you will...

• Lead, coach and grow a team of ML and data engineers. That means setting clear expectations, giving regular feedback, managing performance and building an inclusive team where people do their best work

• Hire for the team, shaping the roles we need and running a fair, rigorous interview process

• Own delivery: plan and prioritise with your product partners across Search, Supply and Commerce, unblock the team, and ship ML and AI systems that move measurable customer and business outcomes

• Set the technical direction for your team's systems, including architecture, build-versus-buy, and knowing when a simpler approach beats a more sophisticated one

• Make sure the team builds well across the whole lifecycle: reliable data pipelines, high-quality features, rigorous offline and online evaluation (including A/B testing), reliable deployment, monitoring and ongoing maintenance

• Lead the team in building production-grade agentic systems, using orchestration harnesses such as LangGraph to design multi-step workflows, tool use and human-in-the-loop controls

• Make evaluation a first-class engineering discipline for LLM and agent work. That means curated eval sets, LLM-as-judge and human review, tracing, regression testing of prompts and agents, and online monitoring of quality, cost and latency

• Set the guardrails for responsible use of AI, covering safety, privacy and clear fallbacks when an agent shouldn't act on its own

• Raise the bar on engineering practice through code and design reviews, CI/CD, MLOps, observability and on-call

• Build strong relationships with senior leaders and partner teams, explaining progress, trade-offs and impact in plain language

• Contribute to our wider AI and ML community and help keep a culture of learning, curiosity and experimentation

We'd love to hear from you if you have...

• Experience line-managing engineers, including hiring, performance management and career development

• A strong background as an ML engineer, with a track record of taking models into production and keeping them healthy at scale

• Enough grounding in data engineering (pipelines, data modelling and data quality) to lead data engineers as well as ML engineers

• Solid Python and software engineering fundamentals, with enough hands-on depth to review code and designs credibly

• Depth in at least one area such as ranking and recommendation, predictive modelling, optimisation or NLP, backed by a solid grasp of statistics, experimentation and feature engineering

• Experience with modern ML infrastructure on a major cloud platform, ideally AWS, covering distributed data processing, orchestration, model management and infrastructure as code

• Hands-on experience shipping agentic or LLM-based systems, including agent orchestration frameworks, tool use, RAG, and fine-tuning where it earns its place

• A disciplined approach to evaluating LLM and agent systems, using tools such as Braintrust, and a clear view on how to know whether an agent is working well in production

• Clear communication with technical and non-technical colleagues, and good judgement on priorities when there's more to do than people to do it

Our tech stack

We build mostly in Python on AWS, and choose tools for what they do in production rather than for novelty. You don't need to know all of it on day one.

• Data and compute: S3, Athena, Spark on EMR, SQL

• Orchestration and MLOps: Airflow, MLflow, Docker, ECS, Terraform, GitHub Actions for CI/CD

• Models: foundation models served through Amazon Bedrock

• Agents: LangGraph for orchestration, deployed and run on Amazon Bedrock AgentCore, with MCP for tool integration

• Evaluation: Braintrust for evals, tracing and monitoring agent quality in production

More information:

Enjoy fantastic perks like private healthcare & dental insurance, a generous work from abroad policy, 2-for-1 share purchase plans, an EV Scheme to further reduce carbon emissions, extra festive time off, and excellent family-friendly benefits.

We prioritise career growth with clear career paths, transparent pay bands, personal learning budgets, and regular learning days. Jump on board and supercharge your career from day one!

We're operating a hybrid model and ask that Trainliners work from the office a minimum of 60% of their time over a 12-week period. We also have a 28-day Work from Abroad policy.

Our values represent the things that matter most to us and what we live and breathe everyday, in everything we do:

• Think Big - We're building the future of rail

• Own It - We focus on every customer, partner and journey

• Travel Together - We're one team

• Do Good - We make a positive impact

Job Data by YubHub.

Our job is to make the green travel choice the best choice. By building a better train travel experience, we help more people choose rail - creating a positive impact for customers, our business and the planet.

We're a team of more than 1,000 Trainliners from over 50 nationalities, working across London, Paris, Barcelona, Milan, Edinburgh and Madrid. Now is a brilliant time to join us and help shape the future of travel.

As a fast moving FTSE 250 business, we're looking for an experienced and technically excellent Head of Group Reporting to join us for a 6 month contract. This is a senior role at the heart of our external reporting and financial control framework, calling for deep IFRS expertise and the confidence to navigate complex and judgemental accounting areas.

Responsibilities

• Take ownership of producing the Group's IFRS annual and half yearly listed financial statements and annual report.
• Lead the year end and half year external audit and review processes end to end, keeping key stakeholders informed and preparing and presenting Audit Committee papers.
• Oversee the production and filing of subsidiary statutory accounts across our UK and international entities.
• Own the Group's cashflow forecasting process, providing insight and analysis on liquidity, capital allocation and capital structure to support CFO and Board decision making, working closely with treasury on execution.
• Act as the Group's primary technical accounting authority, researching and forming well reasoned positions on complex and judgemental areas, implementing new standards, and presenting conclusions to senior management, the Audit Committee, auditors and advisors.
• Take the lead on one off projects, partnering with teams across the business, while contributing to monthly reporting, annual budgeting, and ownership of specific balance sheet, cashflow and working capital areas.
• Build and support strong external relationships, including with auditors, loan providers and banking partners, and work closely with legal and CoSec to ensure reporting requirements are met on time.
• Lead Finance's contribution to the Group's material controls framework under Provision 29, maintain and develop the Group's accounting policies including for acquisitions and legal structure changes, and guide reporting systems and process change to protect the integrity of our control environment.

Requirements

• You're a qualified accountant with significant post qualification experience, including meaningful time spent in industry within a listed business, and are comfortable with the reporting obligations and scrutiny that come with that environment; you have a consistent record of delivering to deadline.
• You bring extensive IFRS expertise and a strong technical accounting grounding, confident researching and forming defensible positions on complex areas such as multi-currency consolidations, share based payments, EPS, impairment, revenue recognition, leases and business combinations.
• If you're currently in practice, you'd be operating at Director level or above, with substantial experience advising listed groups on complex technical matters and be ready to step into a senior in-house leadership role.
• You have experience researching and implementing new accounting or reporting standards.
• You're analytical and thorough when reviewing financial information, quick to spot errors in accounting treatment or anomalies that don't add up.
• You have proven people management experience, with a track record of leading, motivating and developing high performing teams across multiple disciplines.
• You're an excellent project manager, organised in your own workload while confident delegating and developing others, equally comfortable working independently or as part of a team.
• You're ambitious and driven, energised by a fast paced environment, always ready to get involved in team projects and try new things; it would be helpful if you're open to occasional travel to our Paris and Edinburgh offices.

Benefits

• Enjoy fantastic perks like private healthcare & dental insurance, a generous work from abroad policy, 2-for-1 share purchase plans, an EV Scheme to further reduce carbon emissions, extra festive time off, and excellent family-friendly benefits.
• We prioritise career growth with clear career paths, transparent pay bands, personal learning budgets, and regular learning days.
• We're operating a hybrid model and ask that Trainliners work from the office a minimum of 60% of their time over a 12-week period.
• We also have a 28-day Work from Abroad policy.

Job Data by YubHub.

Responsibilities:

• Analyse partner and customer behaviour to inform the development of enterprise and retail solutions.
• Translate complex analysis into clear, compelling insights and practical recommendations for technical and non-technical audiences.
• Produce high-quality analytical deliverables, dashboards, reports, and presentations that help senior stakeholders and external partners make informed decisions.
• Work closely with Data Scientists to structure analytical approaches, interpret findings, and draw meaningful conclusions from large and complex datasets.
• Collaborate across Data, Product, and Design to ensure insight is embedded into decision making from early exploration through to delivery.
• Help define how we measure success across TPS products and partner solutions.
• Contribute to a growing Data organisation that includes Data Science, Machine Learning, Data Engineering, Business Intelligence, and Data Product Management.
• Support the development of innovative retail and enterprise solutions that help shape the future of rail.

Requirements:

• Experience using analytics to support business decisions, answer complex commercial questions, and identify opportunities for improvement.
• Strong SQL skills and confidence working with large datasets to produce accurate, reliable, and well-structured analysis.
• Some experience using AI to responsibly accelerate coding for analysis, as well as basic automation of day-to-day work processes.
• The ability to structure analytical work clearly, navigate ambiguity, and turn complex findings into actionable recommendations.
• Experience communicating insight to a range of audiences, including senior stakeholders, partners, and colleagues from technical and non-technical backgrounds.
• Strong data visualisation skills, ideally using Python or tools such as Tableau, Power BI, or similar.
• A thoughtful approach to storytelling, with the ability to create polished deliverables that make insight easy to understand and act on.
• Strong organisational skills, with the ability to manage multiple analytical work streams and balance competing priorities.
• You may also have experience with DBT or modern data transformation workflows.

Benefits:

• Private healthcare and dental insurance
• Generous work from abroad policy
• 2-for-1 share purchase plans
• EV Scheme to further reduce carbon emissions
• Extra festive time off
• Excellent family-friendly benefits
• Clear career paths and transparent pay bands
• Personal learning budgets and regular learning days

Job Data by YubHub.

Our Tech Stack includes C# (.NET 6 to 10), DynamoDB, PostgreSQL, AWS, Docker, Terraform, GitHub Actions, New Relic, ELK.

You’ll be a great fit if you communicate clearly and enjoy working as part of a team, whether that’s pair-programming, mentoring or collaborating with front-end engineers and other disciplines. You should have strong hands-on C# and .NET experience, including recent features. You should have built and run microservices and event-driven systems, with a solid grasp of distributed systems and scale.

We offer a salary range of £85K – £95K, plus fantastic benefits like private healthcare & dental insurance, a generous work from abroad policy, 2-for-1 share purchase plans, an EV Scheme to further reduce carbon emissions, extra festive time off, and excellent family-friendly benefits.

Job Data by YubHub.

• Base Salary £70K – £80K

The top end of the starting salary range may not always be the top end of our banding. If you're unsure, you can check with one of our recruiters.

Explore all our fantastic benefits [here](https://www.trainlinegroup.com/media/hfybhgrt/trainline_benefits_explorer_wfa.html) [!](https://www.trainlinegroup.com/media/hfybhgrt/trainline_benefits_explorer.html)

About us

At Trainline, our purpose is to empower greener travel choices, connecting people and places. Trainline enables millions of travellers to find and book the best value tickets across carriers, fares, and journey options through our highly rated mobile app, website, and B2B partner channels.

Great journeys start with Trainline 🚄

We’re Europe’s leading independent rail platform, helping millions of travellers find and book the best-value rail and coach journeys across our app, website and partner channels.

Our job is to make the green travel choice the best choice. By building a better train travel experience, we help more people choose rail - creating a positive impact for customers, our business and the planet.

We’re a team of more than 1,000 Trainliners from over 50 nationalities, working across London, Paris, Barcelona, Milan, Edinburgh and Madrid. Now is a brilliant time to join us and help shape the future of travel.

Introducing the Trainline Product Team 👋

Trainline’s Product team sits at the heart of how millions of people across the UK and Europe plan and book their travel. As Europe’s number one rail travel app, we serve millions of active customers every week across the UK, France, Italy and Spain, and our platform is central to a seamless, end-to-end travel experience. We’re looking for a Product Manager to help drive revenue growth across one of our key revenue lines, including Partnerships and Insurance, and to help scale these areas significantly over the next three years.

You’ll play a foundational role in shaping our monetisation product strategy for the number one travel app in Europe, a business serving tens of millions of users across the UK, France, Spain and Italy. The role combines customer empathy, creative merchandising and commercial thinking to deliver significant, measurable value, and you’ll work closely with teams across the business, including Sales, Partnerships, Finance, Data Science, Design and Engineering, to bring new ideas to market and help them grow.

In this role as the Product Manager for Monetisation at Trainline, you will...🚄

• Own the monetisation product strategy and roadmap for at least one major revenue stream, such as Partnerships or Insurance, with scope to shape new lines as they emerge.

• Build a deep understanding of customer journeys and design merchandising experiences, across both app and web, that convert, upsell and delight.

• Work hands-on to drive revenue: testing, launching and scaling monetisation features that deliver against ambitious growth targets.

• Continuously evaluate product-market fit, pricing approaches, conversion rates and the underlying economics of each feature to find new ways to create value.

• Balance quick wins with longer-term capabilities such as segmentation, targeting, pricing flexibility and personalisation.

• Partner closely with Sales, Partnerships and Finance, as well as Data Science, Design and Engineering, to bring new business lines to market and help them scale.

• Identify new monetisation opportunities based on customer needs, market trends and competitive insight.

• Share monetisation best practice across the wider product team, helping to set a high standard for the discipline.

We’d love to hear from you if you have...🔍

• Experience growing high-performing, revenue-generating product lines, ideally within partnerships, affiliate, insurance or other performance-based models.

• Strong product instincts and a commercial mindset, with a good sense of what great merchandising looks like and how product can shape customer behaviour.

• Experience working in high-growth, multi-market consumer tech environments.

• An interest in experimentation and optimisation, with a focus on achieving measurable results.

• Experience collaborating with data scientists, designers, engineers and commercial colleagues, balancing different perspectives while keeping sight of the goal.

• A pragmatic, collaborative approach, comfortable making considered decisions and bringing new ideas to the table.

• Experience scaling products from early stage to maturity, with an understanding of what it takes to build lasting platform capabilities.

• It would also be helpful if you have experience with pricing strategy or segmentation models, though this isn’t essential.

More information:

Enjoy fantastic perks like private healthcare & dental insurance, a generous work from abroad policy, 2-for-1 share purchase plans, an EV Scheme to further reduce carbon emissions, extra festive time off, and excellent family-friendly benefits.

We prioritise career growth with clear career paths, transparent pay bands, personal learning budgets, and regular learning days. Jump on board and supercharge your career from day one!

We're operating a hybrid model and ask that Trainliners work from the office a minimum of 60% of their time over a 12-week period. We also have a 28-day Work from Abroad policy.

Our values represent the things that matter most to us and what we live and breathe everyday, in everything we do:

• 💭 Think Big \- We're building the future of rail

• ✔️ Own It\- We focus on every customer, partner and journey

• 🤝 Travel Together \- We're one team

• ♻️ Do Good \- We make a positive impact

We know that having a diverse team makes us better and helps us succeed. And we mean all forms of diversity - gender, ethnicity, sexuality, disability, nationality and diversity of thought. That's why we're committed to creating inclusive places to work, where everyone belongs and differences are valued and celebrated.

Interested in finding out more about what it's like to work at Trainline? Why not check us out on [LinkedIn](https://www.linkedin.com/company/trainline/), [Instagram](https://www.instagram.com/lifeattrainline/) and [Glassdoor](https://www.glassdoor.co.uk/Overview/Working-at-Trainline-EI_IE249203.11,20.htm)!

Job Data by YubHub.

As a Data Scientist at Trainline, you will be involved in driving insights and strategy for the product team, creating and measuring value through experimentation, and building deep learning about what is most impactful for each team.

You will be responsible for influencing product and business outcomes, have the autonomy to make things happen and must obsess about having business impact. More specifically you will:

• Own data science work from start to finish within an embedded product team, from shaping the right question with your colleagues to delivering a solution and measuring its impact
• Explore customer behaviour and product usage to uncover areas of friction, spot new opportunities and estimate the benefit of acting on them
• Contribute to simple, seamless customer journeys by identifying where we can remove barriers and add value
• Design, run and analyse experiments using sound statistical methods, and help define metrics
• Build, test and improve models such as forecasting, personalisation or customer behaviour prediction that enhance the customer experience and support business growth
• Turn your findings into clear, practical recommendations that help shape product and monetisation strategy, tailoring your message for both technical and non-technical audiences

We'd love to hear from you if you have:

• Hands-on experience applying data science to real product or customer problems, ideally within an embedded or cross-functional team
• Confidence using Python and SQL to explore large datasets of customer activity, build models and write efficient, readable code
• Experience of product engagement evaluation and measurement of success. For example, running A/B tests to evaluate product effectiveness or using front-end data to quantify the effectiveness of new features and how it changes user engagement.
• The ability to explain complex ideas simply and adapt how you communicate for different audiences
• Ideally, an interest in monetisation, advertising, recommendations or e-commerce, and familiarity with tools such as dbt, Looker or Tableau, although none of these are essential
• Tech Stack: SQL, Python, R, Tableau, AWS Athena + More!

Enjoy fantastic perks like private healthcare & dental insurance, a generous work from abroad policy, 2-for-1 share purchase plans, an EV Scheme to further reduce carbon emissions, extra festive time off, and excellent family-friendly benefits.

We're operating a hybrid model and ask that Trainliners work from the office a minimum of 60% of their time over a 12-week period. We also have a 28-day Work from Abroad policy.

Job Data by YubHub.

Responsibilities:

• Take ownership of producing the Group's IFRS annual and half-yearly listed financial statements and annual report.
• Lead the year-end and half-year external audit and review processes end-to-end, keeping key stakeholders informed and preparing and presenting Audit Committee papers.
• Oversee the production and filing of subsidiary statutory accounts across our UK and international entities.
• Own the Group's cash flow forecasting process, providing insight and analysis on liquidity, capital allocation, and capital structure to support CFO and Board decision-making, working closely with treasury on execution.
• Act as the Group's primary technical accounting authority, researching and forming well-reasoned positions on complex and judgemental areas, implementing new standards, and presenting conclusions to senior management, the Audit Committee, auditors, and advisors.
• Take the lead on one-off projects, partnering with teams across the business, while contributing to monthly reporting, annual budgeting, and ownership of specific balance sheet, cash flow, and working capital areas.
• Build and support strong external relationships, including with auditors, loan providers, and banking partners, and work closely with legal and CoSec to ensure reporting requirements are met on time.
• Lead Finance's contribution to the Group's material controls framework under Provision 29, maintain and develop the Group's accounting policies, including for acquisitions and legal structure changes, and guide reporting systems and process change to protect the integrity of our control environment.

Requirements:

• Qualified accountant with significant post-qualification experience, including meaningful time spent in industry within a listed business, and a consistent record of delivering to deadline.
• Extensive IFRS expertise and a strong technical accounting grounding, confident researching and forming defensible positions on complex areas such as multi-currency consolidations, share-based payments, EPS, impairment, revenue recognition, leases, and business combinations.
• Experience researching and implementing new accounting or reporting standards.
• Analytical and thorough when reviewing financial information, quick to spot errors in accounting treatment or anomalies that don't add up.
• Proven people management experience, with a track record of leading, motivating, and developing high-performing teams across multiple disciplines.
• Excellent project manager, organised in your own workload while confident delegating and developing others, equally comfortable working independently or as part of a team.
• Ambitious and driven, energised by a fast-paced environment, always ready to get involved in team projects and try new things.

Benefits:

• £100K – £120K salary
• Offers Equity
• Offers Bonus
• Private healthcare and dental insurance
• Generous work-from-abroad policy
• 2-for-1 share purchase plans
• EV Scheme to further reduce carbon emissions
• Extra festive time off
• Excellent family-friendly benefits

Job Data by YubHub.

The successful candidate will oversee an organisation comprising Engineering Managers and multiple fullstack squads, spanning web, backend and mobile. They will partner closely with Product, Design, Data and Commercial to align technical delivery with business outcomes.

Key responsibilities include:

• Leading multiple squads and their Engineering Managers, supporting career development through coaching and performance conversations
• Owning end-to-end delivery across squads, ensuring projects are planned, executed and delivered to a high standard and on time
• Partnering with Product, Design, Data and Commercial to align technical delivery with business outcomes
• Guiding technical direction and architecture across fullstack web, backend and mobile squads
• Bringing coherence across distinct areas, ensuring technical strategy connects them where it matters
• Championing engineering best practices across teams, promoting quality and a culture of technical innovation
• Driving operational excellence, ensuring teams have robust monitoring, alerting and incident management processes in place

Requirements:

• Experience leading engineering teams and delivering complex, multi-team initiatives
• A strong track record of developing people, building high-performing teams and growing future leaders
• The ability to inspire trust and autonomy at all levels, fostering a positive, inclusive and high-performing team culture
• Comfort operating across multiple, distinct product domains and connecting them into a coherent technical strategy
• Enjoyment working in a dynamic, collaborative and highly cross-functional environment
• Strong written and verbal communication skills, with the ability to influence at all levels of the organisation
• Confidence leading through ambiguity, creating clarity and momentum in complex or uncertain situations

We offer a range of benefits, including:

• Base salary £120K – £135K
• Equity
• Bonus
• Private healthcare and dental insurance
• Generous work from abroad policy
• 2-for-1 share purchase plans
• EV Scheme
• Extra festive time off
• Excellent family-friendly benefits

Job Data by YubHub.