You will collaborate with product and infrastructure teams to develop storage primitives enabling all of Discord. You will exercise 'First Principles Thinking' to always deliver what matters most to our users.

You will work with a talented team of engineers who have built one of the largest communication platforms in the world.

Responsibilities:

• Build and operate large-scale, reliable, and performant data systems with ScyllaDB, PostgreSQL, ElasticSearch, Linux, and Rust.
• Collaborate with product and infrastructure teams to develop storage primitives enabling all of Discord.
• Exercise 'First Principles Thinking' to always deliver what matters most to our users.
• Work with a talented team of engineers who have built one of the largest communication platforms in the world.

Requirements:

• 4+ years of experience with building distributed systems and datastore infrastructure.
• Experience with highly-available and distributed databases: e.g. ScyllaDB, Cassandra, BigTable, DynamoDB, CockroachDB, Postgres w/HA, etc.
• Proficiency with at least one statically-typed programming language: e.g. Rust, Go, Java, C, C++
• Strong operating systems, distributed systems, and concurrency control fundamentals.
• Familiarity with Linux internals.
• Comfortable working in fast-paced environments.

Bonus Points:

• Experience with Cassandra or Scylla.
• Experience with Rust.
• Knowledge of DevOps tools like Salt, Terraform, or Kubernetes.

Why Discord?

Discord plays a uniquely important role in the future of gaming. We're a multi-platform, multi-generational, and multiplayer platform that helps people deepen their friendships around games and shared interests.

We believe games give us a way to have fun with our favorite people, whether listening to music together or grinding in competitive matches for diamond rank.

Join us in our mission!

Your future is just a click away!

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In this role, you will work closely with our team to ensure that our infrastructure is reliable, efficient, and scalable. You will participate in an on-call rotation and be responsible for resolving integration challenges across the entire infrastructure stack, from data center hardware to orchestration platforms.

We're looking for someone with a strong background in software engineering, experience with Go and/or Python, and familiarity with CI/CD tools like Argo, Flux, and GitHub Actions. You should also have a strong understanding of Linux internals and experience designing, implementing, and monitoring Kubernetes operators for custom resource definitions.

As a senior software engineer at CoreWeave, you will have the opportunity to work on a wide range of projects and contribute to the development of our cloud computing platform. You will be part of a collaborative and dynamic team that is passionate about building innovative solutions to complex problems.

If you're a motivated and experienced software engineer looking for a new challenge, we encourage you to apply for this role.

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Okta secures AI by building the trusted, neutral infrastructure that enables organisations to safely embrace this new era.

We are looking for builders and owners who operate with speed and urgency and execute with excellence. This is an opportunity to do career-defining work.

Okta's Workforce Identity Cloud Security Engineering group is looking for an experienced and passionate Staff Site Reliability Engineer to join a team focused on designing and developing Security solutions to harden our cloud infrastructure.

We encourage you to prescribe defence-in-depth measures, industry security standards and enforce the principle of least privilege to help take our Security posture to the next level.

Our Infrastructure Security team has a niche skill-set that balances Security domain expertise with the ability to design, implement, rollout infrastructure across multiple cloud environments without adding friction to product functionality or performance.

We are responsible for the ever-growing need to improve our customer safety and privacy by providing security services that are coupled with the core Okta product.

This is a high-impact role in a security-centric, fast-paced organisation that is poised for massive growth and success.

You will act as a liaison between the Security org and the Engineering org to build technical leverage and influence the security roadmap.

You will focus on engineering security aspects of the systems used across our services.

Join us and be part of a company that is about to change the cloud computing landscape forever.

As a Staff Engineer, you should be able to identify gaps, propose innovative solutions, and contribute to roadmaps while driving alignment across multiple teams within the organisation.

Additionally, you should serve as a role model, providing technical mentorship to junior team members and fostering a culture of learning and growth

What are we looking for?

We are looking for a security-first SRE engineer who doesn't just 'flag' issues but builds the automation to solve them.

You should have a deep-seated intuition for cloud-native security and a proven track record of hardening large-scale GCP and AWS environments.

As a Technical SME, you will design and build production infrastructure with a 'security-at-scale' mindset.

What You Will Work On?

Security Evangelism: Lead initiatives to strengthen our security posture for critical infrastructure and promote best practices across the engineering organisation.

Incident Response & Reliability: Respond to production security incidents, perform root cause analysis, and build automated preventions to ensure high performance and reliability.

Automated Hardening: Identify manual security processes and automate them using custom tooling and CI/CD integrations.

Architecture & Documentation: Develop technical documentation, runbooks, and procedures for a 24x7 online environment.

Platform Evolution: Continuously evolve our monitoring platforms, moving from simple auditing to active, automated prevention.

Minimum Required Knowledge, Skills, & Abilities:

Experience: 8+ years of experience architecting and running complex cloud networking and infrastructure, with at least 7+ years specialised in DevSecOps or Cloud Security.

GCP Expertise: Minimum 3+ years of deep, hands-on experience securing GCP (GKE, GCE, Shared VPC etc).

Infrastructure as Code (IaC): 10+ years of experience using Terraform and Chef to manage complex cloud resources and OS hardening.

Automation Mastery: Expert-level proficiency in Go, Python, or Ruby for building custom security tooling and automated remediation.

Hardened Containers: Proven track record of securing containerised workloads, including image scanning, K8s RBAC, and runtime security tools (e.g., CrowdStrike Falcon, Falco, or gVisor).

Unflappable Troubleshooting: A 'see a problem, fix the problem' mindset with the ability to debug complex networking, IAM, or performance issues under pressure.

Security Foundations: Strong grasp of Linux internals, OS hardening (CIS benchmarks), and IP protocols (TLS/SSL, DNSSEC, BGP).

Education: BS in Computer Science or equivalent professional experience.

Key Responsibilities:

IAM & Secrets Management: Design and maintain large-scale production IAM policies and secrets management workflows.

Infrastructure Hardening: Implement and maintain Public Key Infrastructure (PKI) and ensure all GCE/GKE environments meet strict compliance standards.

Operational Excellence: Utilise industry-standard tools like OSQuery, Splunk, Chronicle, Nessus, or Qualys/Crowdstrike to monitor system health and security telemetry.

Strategic Rollouts: Lead the phased transition of security policies from Audit/Detection mode to Blocking/Prevention mode, ensuring zero impact on production uptime.

Bonus Points For:

Multi-Cloud IAM Governance: Experience designing a unified IAM framework across AWS and GCP, utilising federated Identities such as Workload, Workforce Identity Federation with understanding of SAML & OIDC auth mechanism and automated 'Least Privilege' enforcement.

Cloud-Native Reliability Engineering: Deep understanding of multi-cloud reliability patterns, maintaining high availability (HA) during security patching or infrastructure-wide hardening.

Hardened Kubernetes Orchestration: Advanced experience securing GKE, EKS, and kOps, specifically implementing Pod Security Standards, Network Policies, and Admission Controllers for a 'Zero-Trust' posture.

Threat Modeling: Security Reviews & Threat Modeling at both Design & Implementation scope.

The Okta Experience - Supporting Your Well-Being - Driving Social Impact - Developing Talent and Fostering Connection + Community

We are intentional about connection. Our global community, spanning over 20 offices worldwide, is united by a drive to innovate. Your journey begins with an immersive, in-person onboarding experience designed to accelerate your impact and connect you to our mission and team from day one.

Okta is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, colour, religion, sex, sexual orientation, gender identity, national origin, ancestry, marital status, age, physical or mental disability, or status as a protected veteran. We also consider for employment qualified applicants with arrest and convictions records, consistent with applicable laws.

If reasonable accommodation is needed to complete any part of the job application, interview process, or onboarding please use this Form to request an accommodation.

Notice for New York City Applicants & Employees: Okta may use Automated Employment Decision Tools (AEDT), as defined by New York City Local Law 144, that use artificial intelligence, machine learning, or other automated processes to assist in our recruitment and hiring process. In accordance with NYC Local Law 144, if you are an applicant or employee residing in New York City, please click here to view our full NYC AEDT Notice.

Okta is committed to complying with applicable data privacy and security laws and regulations. For more information, please see our Personnel and Job Candidate Privacy Notice at https://www.okta.com/legal/personnel-policy/

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You'll participate in architectural discussions and technical decisions related to Git and Gitaly, helping drive implementation choices that improve correctness, performance, and maintainability. You'll contribute features, bug fixes, and performance improvements to upstream Git in line with team and community goals, delivering changes that improve repository access and reliability for users.

Adapt Gitaly to make effective use of Git capabilities, including integrating newly available features to improve scalability, efficiency, and long-term maintainability. Connect discussions in the open source Git project with GitLab's product direction and engineering work, helping align upstream contributions with product and platform needs.

Scope tasks, estimate effort, and describe implementation plans that support the team's priorities and enable predictable delivery of technical work. Test and validate the features you build and integrate, with a focus on correctness and reliability to reduce regressions and support stable production use.

Collaborate with team members, contributors, and the Git ecosystem. Represent GitLab as a constructive participant in the open source ecosystem, building productive relationships that support ongoing collaboration with the Git community.

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As a Security Researcher, you'll play a pivotal role in safeguarding these innovations by anticipating, identifying, and mitigating risks before they materialize. This isn't just about finding vulnerabilities; it's about shaping the future of secure AI by embedding an attacker's mindset into everything we build.

You'll work at the intersection of offensive security, AI safety, and product development, collaborating with cross-functional teams to harden our systems against evolving threats. Your expertise will directly influence how we design, deploy, and protect our most critical assets , ensuring our agents remain resilient, trustworthy, and ahead of adversaries.

Key responsibilities include:

• Proactively hunting for vulnerabilities in the interactions between our agentic applications, cloud infrastructure, and foundational models, with a focus on realistic, high-impact attack vectors.

• Designing and executing red and purple team exercises, simulating sophisticated adversarial scenarios to stress-test our defenses and refine our detection capabilities.

• Partnering with defensive teams to translate offensive insights into actionable improvements, from detection engineering to incident response.

• Conducting in-depth penetration testing across our product suite, including AI-driven workflows, custom infrastructure, and user-facing interfaces.

• Building and automating offensive tooling to scale your impact, leveraging cutting-edge techniques to stay ahead of emerging threats.

• Communicating findings with clarity and conviction, ensuring technical and non-technical stakeholders understand risks and prioritize mitigations effectively.

• Shaping Mistral AI's security strategy by contributing attacker-informed perspectives to threat modeling, risk assessment, and architectural decisions.

We're looking for someone with 7+ years of offensive security experience, deep knowledge of AI/ML security risks, and hands-on experience assessing modern technology stacks. A builder's mindset, strong intuition for trust boundaries, and outstanding communication skills are also essential.

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You are a highly motivated Site Reliability, Staff Engineer with a passion for Linux platforms and a commitment to operational excellence. You thrive in dynamic, multi-faceted environments and are energized by the challenge of deploying, maintaining, and optimizing complex systems. Your curiosity drives you to continually learn and adapt, while your technical expertise enables you to solve intricate problems efficiently.

Administering and managing Linux operating systems, including kernel components, memory management, process scheduling, and system performance optimization. Performing routine and advanced system administration tasks such as monitoring, tuning, and troubleshooting across bare-metal and virtualized nodes. Deploying, configuring, and managing Linux-based operating systems using Kickstart and Ansible for automation and environment standardization. Implementing and managing MAAS (Metal as a Service) for large-scale bare-metal provisioning and lifecycle operations. Operating and maintaining OpenStack environments for On Demand Computing and cloud infrastructure. Providing support for virtualization technologies (VMware, KVM, etc.), including troubleshooting and maintenance. Delivering basic Linux networking support, resolving connectivity, routing, firewall, NIC bonding, VLAN, and interface configuration issues. Collaborating with cross-functional teams to enhance infrastructure reliability, scalability, and security. Creating and maintaining detailed documentation, including configurations, SOPs, troubleshooting guides, and operational runbooks.

Ensuring the reliability and uptime of critical Linux environments that underpin Synopsys' engineering and development operations. Enabling rapid deployment and scalability of infrastructure through automation and standardized processes. Reducing downtime and improving system performance by proactively identifying and resolving technical issues. Enhancing security and compliance across platforms through robust configuration and monitoring practices. Accelerating innovation by providing stable, high-performance environments for development and testing teams. Fostering a collaborative culture by sharing expertise, mentoring peers, and contributing to knowledge repositories.

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Start with an opening paragraph (no heading): what the role is, who the company is, why it matters. If the ad mentions salary, include it here.

Rephrase bullet points in your own words while keeping the factual content. Combine related points where it makes sense.

For benefits/perks: gather them from anywhere in the ad into one section. If the ad mentions nothing about benefits, omit a benefits section entirely.

Do not invent information that is not in the original ad.

About the role The Anti-Abuse team is the front line defending Replit's platform from exploitation. We detect and shut down phishing deployments, prevent cryptomining on free-tier infrastructure, stop LLM token farming, and keep bad actors from weaponizing the platform against our users. This is adversarial work: attackers adapt constantly, and we build the detection systems, heuristics, and automated responses that stay ahead of them.

What makes this role unique is the AI-native nature of Replit's platform. You'll work on problems that barely exist elsewhere: building guardrails for AI-generated code, detecting prompt injection attacks at scale, and using LLMs as a defensive tool against abuse. If you want hands-on experience applying AI to security problems, this is one of the few places you can do it in production with real attackers. You'll own problems end-to-end, from identifying emerging abuse patterns to shipping the systems that stop them at scale.

In this role you will…

• Design and implement LLM guardrails that detect abuse scenarios in AI-generated code and agent interactions
• Build AI-powered detection systems that use LLMs to identify malicious patterns, classify threats, and automate response decisions
• Build and operate abuse detection systems that identify phishing, cryptomining, account takeover, and financial fraud across millions of daily user actions
• Design automated response mechanisms that enforce platform policies without manual intervention
• Own the full abuse response lifecycle: detection, investigation, enforcement, and handling appeals alongside Support and Legal
• Analyze attack patterns using BigQuery and Hex, turning investigation findings into new detection rules
• Maintain and extend internal detection tools (Slurper, Netwatch) that continuously monitor user activity
• Integrate and tune security scanners (SAST, SCA) in CI pipelines with tight performance SLAs
• Track abuse trends, measure detection effectiveness, and adapt defenses as attack patterns evolve

Required skills and experience:

• 4+ years of experience in security engineering, anti-abuse, trust & safety, or fraud detection
• Strong programming skills in Python and/or TypeScript for building detection systems and automation
• Experience with SQL and data analysis at scale (BigQuery, Snowflake, or similar)
• Experience building or fine-tuning ML/LLM-based classifiers for security or abuse detection
• Familiarity with prompt injection, jailbreaking, and other LLM-specific attack vectors
• Ability to investigate complex abuse patterns and translate findings into automated defenses
• Familiarity with common attack patterns: phishing infrastructure, account takeover, credential stuffing, resource abuse
• Clear communication skills for working across Security, Support, Legal, and Engineering teams.

Nice to have:

• Experience at a platform company dealing with user-generated content or compute abuse (hosting providers, cloud platforms, developer tools)
• Background in fraud detection, payment abuse, or financial crime
• Familiarity with device fingerprinting, IP reputation, and email validation services
• Experience with CI/CD security tooling (SAST, SCA, Dependabot, Snyk)
• Knowledge of container security, Linux internals, or cloud infrastructure (GCP preferred)
• Prior work with abuse reporting pipelines, trust & safety tooling, or content moderation systems

Tools + Tech Stack for this role

• Languages: Python, TypeScript, Go, SQL
• Data: BigQuery, Hex
• Detection tools: Slurper, Netwatch, Stytch (device fingerprint); ClearOut (email reputation)
• CI/CD Security: Dependabot, Snyk, SAST/SCA scanners
• Infrastructure: GCP, Kubernetes
• Collaboration: Linear, Slack, Zendesk (for abuse reports)

This role may _not_ be a fit if

• You prefer deep security research over building operational detection systems
• You want to focus on vulnerability management, pentesting, or bug bounty triage (that's our Security team)
• You're looking for a role with predictable, well-defined problems rather than constantly adapting to adversarial behavior
• You prefer working in isolation rather than partnering closely with Support, Legal, and cross-functional teams
• You're uncomfortable making enforcement decisions that affect real users

_This is a full-time role that can be held from our Foster City, CA office. The role has an in-office requirement of Monday, Wednesday, and Friday._

Full-Time Employee Benefits Include: 💰 Competitive Salary & Equity 💹 401(k) Program with a 4% match ⚕️ Health, Dental, Vision and Life Insurance 🩼 Short Term and Long Term Disability 🚼 Paid Parental, Medical, Caregiver Leave 🚗 Commuter Benefits 📱 Monthly Wellness Stipend 🧑‍💻 Autonomous Work Environment 🖥 In Office Set-Up Reimbursement 🏝 Flexible Time Off (FTO) + Holidays 🚀 Quarterly Team Gatherings ☕ In Office Amenities

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What you'll do

As a Senior Infrastructure Engineer, you will be responsible for building and maintaining core systems that power Perplexity's products and development workflows. This will involve developing internal tools and automation to streamline developer workflows and operational efficiency.

• Build and maintain robust, scalable infrastructure to support high-performance search systems
• Develop internal tools and automation to streamline developer workflows and operational efficiency

What you need

To be successful in this role, you will need to have a strong background in cloud infrastructure, systems design, and automation. You will also need to have a deep understanding of Linux internals, performance tuning, and debugging.

• Strong background in cloud infrastructure (AWS preferred), systems design, and automation
• Deep understanding of Linux internals, performance tuning, and debugging

Why this matters

This role is critical to ensuring the high-quality product that Perplexity delivers. Your passion and diligence will be essential in ensuring that the company's products meet the highest standards.

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What you'll do

Your main responsibilities will be to architect, build, and optimise ultra-low-latency search infrastructure using Rust. You will also profile and instrument services, continuously driving down response times at scale, and develop and maintain distributed backend components powering real-time search and retrieval.

• Architect, build, and optimise ultra-low-latency search infrastructure using Rust
• Profile and instrument services, continuously driving down response times at scale
• Develop and maintain distributed backend components powering real-time search and retrieval

What you need

To be successful in this role, you will need to have deep expertise in Rust programming, especially for backend/search systems. You will also need experience profiling and tuning high-load, low-latency distributed services, and a strong understanding of systems design, Linux internals, and performance debugging.

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