> Markdown version of [/jobs/ext/1341772-site-reliability-engineer](https://www.wearedevelopers.com/jobs/ext/1341772-site-reliability-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Site Reliability Engineer - **Company:** source - **Location:** London, UK - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Artificial Intelligence, Amazon Web Services, C++ (Programming Language), Computer Programming, Continuous Integration, Distributed Systems, Identity and Access Management, Python (Programming Language), Reliability Engineering, Software Systems, Containerization, Kubernetes, Production Code, Terraform - **Published:** July 19, 2026 - **Apply:** https://uk.indeed.com/viewjob?jk=8141cb0fc65cdebd ## About the Role * Coding-First SRE: You are a software engineer at heart with a strong programming foundation. You write clean, production-grade code, build robust internal tools, and treat infrastructure challenges as software problems. * The AWS Expert: You have a deep, practical mastery of AWS, moving fluently between compute, networking, storage, and IAM. * Automation First: You believe that manual work is a bug. You have extensive experience with Infrastructure as Code, specifically Terraform. * Scale-Hardened: You come from an SRE or Production Engineering background, having navigated the unique challenges of running large-scale distributed systems in the wild. * The Orchestrator: Skilled in Kubernetes and EKS, knowing exactly how to squeeze the best performance out of containerized workloads. * Systems Thinker: You have a sharp eye for trade-offs, understanding how to navigate the delicate balance between performance, scalability, and cost. * Our Tech Stack: We do development in Rust & python. You should have strong coding experience in either Python, C++, Java (or similar modern languages). Prior Rust experience is NOT required, but strong willingness and excitement to learn is. * Low Ego, High Impact: Beyond being a brilliant engineer, you are a thoughtful and empathetic teammate-someone who leads with kindness and values the success of the group. * Feedback Culture Champion: You embrace feedback and provide it thoughtfully; you see open, honest communication as the foundation of great teamwork. ## Description SourceFS is a high-performance virtual filesystem designed to turn multi-hour workflows into minutes. * 10x Faster Builds: Intelligent caching and virtualization that only materializes files when they are actually needed. * 10x Lower Costs: Enabling a standard 16-vCPU machine to outperform even a 128-vCPU machine. * True Engineering Productivity: Replaying hundreds of thousands of build steps instantly when inputs match., We are looking for an Site Reliability Engineer (SRE) to join our world-class team. This isn't just an operational "maintenance" role; you will be software-engineering the engine that powers tens of thousands of daily builds, ensuring our platform is as resilient as it is rapid., * High-Throughput Infrastructure: Build the foundation for CI/CD, developer environments, and AI workloads-supporting a massive volume of builds every single day. * Optimization Strategy: Develop advanced autoscaling, multi-layer caching, and storage strategies that balance peak performance with cost efficiency. * Operational Excellence: Own the observability and reliability of the platform, ensuring we maintain a "gold standard" of uptime and system health. * Developer-Centric Tooling: Create sophisticated monitoring and internal systems that make managing infrastructure at scale feel effortless for both our team and our customers., * AI-Native Infrastructure: We merge deep systems expertise with AI to solve the "impossible" - using AI to automate complex merges and conflict resolution for the next generation of devices. * Architect the Future: Have a direct, visible impact on the infrastructure used to build the world's most advanced hardware. * Early-Stage Ownership: You'll have a seat at the table to shape our technical roadmap, product direction, and culture from day one. * Tier-One Partnerships: Work side-by-side with world-class customers, from global automotive giants to leading cloud providers. * Elite Engineering Culture: Join a high-trust & passionate team of engineers ## Related Videos - [Infrastructure as Code: The Developer's Secret Weapon](https://www.wearedevelopers.com/videos/1221-infrastructure-as-code-the-developer-s-secret-weapon) - [Understanding Kubernetes in a visual way](https://www.wearedevelopers.com/videos/100085-understanding-kubernetes-in-a-visual-way) - [Designing the Future of Human<>Agent Collaboration](https://www.wearedevelopers.com/videos/1447-designing-the-future-of-human-agent-collaboration) - [SRE Methods In an Agency Environment](https://www.wearedevelopers.com/videos/348-sre-methods-in-an-agency-environment) - [Implementing Feature Environments with AWS and Terraform](https://www.wearedevelopers.com/videos/531-implementing-feature-environments-with-aws-and-terraform) - [Leading with Reliability: Applying SRE Principles to Build Stronger Engineering Organizations](https://www.wearedevelopers.com/videos/100185-leading-with-reliability-applying-sre-principles-to-build-stronger-engineering-organizations) ## Related Articles - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [What is Software Engineering?](https://www.wearedevelopers.com/magazine/289-what-is-software-engineering) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Best Countries for Software Engineers](https://www.wearedevelopers.com/magazine/267-best-countries-for-software-engineers)