At bunq, we're here to make life easier and redefine what banking can be. Play a key role in delivering an exceptional banking app experience by ensuring seamless, secure, and flawless functionality for our users. Use your coding skills to build and improve bank of the Free from behind the scenes.

Take Ownership

As a Backend Engineer at bunq, you'll be at the forefront of our backend development, ensuring our employees and users experience unparalleled stability and performance.

• Building (user-facing) features.
• Collaborating with product to propose and designing the backend structure for new features and supporting other departments by developing and maintaining processes.
• You'll utilize technologies like MySQL, Redis, Elasticsearch, and PHP to develop the bank of The Free.

Requirements

• Our PHP-based backend is intuitive, so no prior PHP experience is needed while experience in any object-oriented language will do.
• You're able to tinker and test your own projects.
• You use your creativity to build industry-breaking user-facing features.
• You coordinate efforts to increase efficiency and scalability.
• You're fluent in English, both speaking and writing.

Your space to perform

We give you the space and the tools you need to succeed.

Join forces with great colleagues across the globe to revolutionize banking.

Make lasting impact by working on complex & exciting challenges.

Accelerate your career growth with bunq Academy and €1500 learning budget and additional study leave.

Monthly contributions to your phone and internet bills.

A Macbook to keep with you while you're with us.

Hybrid setup: after 3 months in-office, work 2 days remote, 3 days in-office weekly.

Digital Nomad Program: After your first year, enjoy up to 20 days per year to work while traveling, combining flexibility with strong team collaboration

We reward tenure with a dedicated travel budget: €1.5k after 2 years and €3k after 4 years to visit another core office.

Travel expenses are covered whether you come walking or by bike, bus or car (though we prefer green choices ).

Fabulous in-house chefs cooking delicious lunches.

An optional pension plan with monthly contribution from bunq (Netherlands).

Private Health Insurance, just in case (Istanbul).

A massive discount with Urban Sports Club for your wellbeing (Netherlands).

Stay fit & healthy with a Multisport gym card (Istanbul).

Friday drinks, team events, and other celebrations - bunq style!

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Responsibilities:

• Design, implement, and maintain reliable and horizontally scalable distributed systems
• Work closely with the team to identify and solve pain points
• Collaborate with the team to ensure high-quality code and architecture
• Participate in code reviews and contribute to the improvement of the codebase

Requirements:

• Expert knowledge of either Rust or C++
• Experience in designing, implementing, and maintaining reliable and horizontally scalable distributed systems
• Knowledge of service observability and reliability best practices
• Experience in operating commonly used databases such as PostgreSQL, Clickhouse, and MongoDB

Preferred Skills and Experience:

• Knowledge of Python
• Experience with Docker, Kubernetes, and containerized applications
• Expert knowledge of gRPC (unary, response streaming, bi-directional streaming, REST mapping)
• Hands-on experience with LLM APIs, embeddings, or RAG patterns
• Track record of delivering user-facing software at scale

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We're looking for a skilled Backend Engineer to join our team at xAI. As a Backend Engineer, you will work on our production systems that power the API.

About xAI:

xAI's mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. Our team is small, highly motivated, and focused on engineering excellence.

Responsibilities:

• Work on xAI's production systems that power the API
• Design, implement, and maintain reliable and horizontally scalable distributed systems
• Operate commonly used databases such as PostgreSQL, Clickhouse, and MongoDB
• Ensure service observability and reliability best practices

Requirements:

• Expert knowledge of either Rust or C++
• Experience in designing, implementing, and maintaining reliable and horizontally scalable distributed systems
• Knowledge of service observability and reliability best practices
• Experience in operating commonly used databases such as PostgreSQL, Clickhouse, and MongoDB

Preferred Skills and Experience:

• Knowledge of Python
• Experience with Docker, Kubernetes, and containerized applications
• Expert knowledge of gRPC (unary, response streaming, bi-directional streaming, REST mapping)
• Hands-on experience with LLM APIs, embeddings, or RAG patterns
• Track record of delivering user-facing software at scale

Benefits:

• Strong communication skills
• Ability to concisely and accurately share knowledge with teammates
• Flat organisational structure
• Opportunity to work on challenging projects

Note: This job description is a rewritten version of the original ad, focusing on the job requirements and responsibilities.

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Depending on your skills and field of expertise, you will be involved in key components of our technology, including:

• Backend Development: Design, develop, and maintain scalable, robust backend features and APIs using modern frameworks.
• System Architecture: Design and implement efficient, secure, and scalable architectures that support our fast-growing products.
• Code Quality: Write clean, maintainable, and well-documented code.
• Cross-functional Collaboration: Work closely with product managers, front-end engineers, designers, and data/AI engineers to deliver end-to-end features.
• Problem-Solving & Innovation: Tackle complex engineering challenges, from distributed systems to AI product integration.

You will be working closely with our team to design, develop, and deploy scalable and reliable systems that meet the needs of our users.

We are looking for someone with a strong background in software engineering, a passion for building scalable systems, and excellent communication skills.

Responsibilities:

• Design, develop, and maintain scalable, robust backend features and APIs using modern frameworks.
• Ensure high performance and reliability across our distributed systems.
• Contribute to systems powering authentication, billing, AI tooling, observability, connectors, and developer experience.
• Design and implement efficient, secure, and scalable architectures that support our fast-growing products.
• Collaborate with infrastructure teams on deployment, monitoring, and performance optimization.
• Write clean, maintainable, and well-documented code.
• Participate in code reviews and contribute to technical standards and best practices.
• Work closely with product managers, front-end engineers, designers, and data/AI engineers to deliver end-to-end features.
• Partner with teams across AI Studio, Le Chat & Mistral Code to ensure consistent platform-wide experience.
• Tackle complex engineering challenges, from distributed systems to AI product integration.

Requirements:

• Degree in Computer Science, Software Engineering, or equivalent practical experience.
• 5+ years of relevant work experience.
• Proficiency in Golang or another backend language (Python, Rust…).
• Strong understanding of backend fundamentals: APIs, databases, caching, messaging systems, and distributed architectures.
• Experience with cloud-based (AWS, GCP, Azure) and bare-metal infrastructure.
• Strong problem-solving abilities and attention to detail.
• Ownership mindset capable of shipping end-to-end features with minimal oversight.
• Excellent communication skills and collaborative attitude.
• Team-oriented, low-ego mindset, and curiosity for learning.

Nice to have:

• Front-end development (Typescript, React, NextJS…)
• Infrastructure management (Docker, CI/CD, Kubernetes, Helm, Terraform…)
• Observability and monitoring tools (Prometheus, Grafana, Datadog…)

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As a Backend Engineer, you will help us exemplify, measure and raise the reliability of data infrastructure of squads across different verticals within Spotify. You'll work closely with engineers to provide OLAP capabilities to build dynamic, reliable data visualizations and share responsibility with them in diagnosing, resolving, and preventing production issues.

Key responsibilities include:

• Building, operating, and evolving data analytics platforms that include backend services as well as OLAP data stores (Druid) for teams building analytics across Spotify.
• Building internal tooling, libraries, and services that streamline integration patterns with our analytics platform.
• Advocating for best practices in service design, data modeling, schema evolution, and contract testing to ensure long-term maintainability.
• Working in an autonomous, multi-functional environment and collaborating with squads across Spotify to continuously iterate and deliver on new product objectives.

To succeed in this role, you will need:

• 3+ years of relevant experience with distributed datastores and backend services.
• Proficiency in Java and a willingness to learn Kubernetes and Terraform.
• Understanding of data modeling, dimensional schemas, and analytical query patterns.
• Experience building internal developer tools, libraries, or shared services that support large engineering organisations.
• A strong sense of ownership of service quality, SLOs, and operational excellence.
• Familiarity with OLAP databases or analytics warehouses (e.g., Druid, ClickHouse, Pinot, BigQuery, Snowflake).
• Comfort with metrics-driven development and observability stacks (Prometheus, Grafana, similar).
• Excellent communication and interpersonal skills, with the ability to work effectively with cross-functional teams.

In return, we offer a competitive salary range of $125,562-$179,374, plus equity, as well as a comprehensive benefits package including health insurance, six months' paid parental leave, 401(k) retirement plan, monthly meal allowance, 23 paid days off, 13 paid flexible holidays, and paid sick leave.

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Your primary responsibilities will include designing, developing, and deploying backend services and APIs that power Spotify's creator authorization systems. You will collaborate with different cross-disciplined teams on complex problems, maintaining business-critical Spotify authorization systems, ensuring high availability, stability, and adherence to SLAs.

You will also embrace and promote sound engineering practices, contribute to a culture of high-quality, scalable, and reliable systems, actively contribute to our learning culture by sharing knowledge and mentoring other engineers, and leverage AI to improve our systems, automate tasks, and drive business impact.

We are looking for a problem solver who loves seeing things through from concept to production and is eager to learn whatever skills are needed along the way. You should be a Fullstack Developer who understands the complexities of Server side vs Client side development and is interested in crossing the lines between Backend, Data and Front End.

You should have 3+ years of experience with Java, SQL and ideally familiar with React, Typescript, Next.js. You should be a collaborative teammate who values inclusion and open communication.

You will have the flexibility to work where you work best, with some in-person meetings, but still allowing for flexibility to work from home.

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Microsoft are looking for a talented Backend Engineer at their Redmond office. This role sits at the heart of software development, turning code into actionable insights for a company that's revolutionising technology innovation. You'll work directly with leadership to shape the company's direction in the browser and cloud markets.

About the Role

As a Backend Engineer, you will help plan, design, develop and test software components for enhancements to V8 or new allied product components which may be used in Chromium based products. This opportunity will allow you to develop software, tools and code to be used in support of design, infrastructure and technology platforms as well as commercial or end-user applications. You will primarily use C++ along with other technologies to write code, perform testing and debug any issues with robust documentation, procedures for deployment and processes for maintenance.

Accountabilities

• Conduct in-depth market research across browser and cloud sectors, identifying emerging trends, competitive threats, and partnership opportunities that directly inform the company's quarterly strategic planning sessions
• Learn and contribute to processes for the architecture of a product/solution feature and learn to create proposals by testing design hypotheses and helping to refine code plans under the technical leadership of others as well as help produce code to test hypotheses for technical solutions and assist with technical validation efforts

The Candidate we're looking for

Experience:

• 2+ years technical engineering experience with coding in languages including, but not limited to, C++, C or C#

Technical skills:

• Experience working with data structures like hash tables and binary trees, algorithms, and performance analysis
• Experience with compiler technology, assembly-level programming and/or debugging

Personal attributes:

• Strong problem-solving skills and ability to work in a fast-paced environment
• Excellent communication and collaboration skills

Benefits

• Competitive salary range of $100,600 - $199,000 per year
• Comprehensive benefits package, including medical, dental, and vision insurance
• 401(k) matching program
• Paid time off and holidays
• Opportunities for professional growth and development
• Flexible work arrangements, including remote work options

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