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The Mission: Source.dev
Our founders spent over a decade at Google shaping the Android operating systems - building and shipping the software that now runs on billions of devices. They didn't just use Android; they led teams responsible for the Android Virtualization Framework, Security, and the Android Runtime (ART).
Through that journey, they saw a quiet but massive crisis: as device software grew in complexity, the tools used to build it remained stuck in the past. Today, a standard Android checkout exceeds 200GB of code, and builds can take hours. This "wait time" is the single biggest tax on innovation.
Source.dev was founded to reimagine software development workflows for device makers. We’re building a new generation of software tools that make building complex device software feel as simple as building a webpage - starting with SourceFS.
The Core Product: SourceFS
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.
The Cultural Anchor: Own It
We operate with a high degree of trust and a shared value of End-to-End Ownership:
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"We own our work end-to-end, from spark to finish. It’s about more than just tasks; it’s the dedication to see things through, staying curious to solve problems, thinking from first principles and ensuring we fix our customer’s problems in the best possible way.”
The Role: Pushing the Boundaries of Rust & Linux
We are looking for a Software Engineer to join our world-class team. This isn't just an "application" role; you will be working at the lowest levels of the stack to solve "Level 10" technical challenges.
What You’ll Work On:
- Systems Architecture: Build high-performance, memory-safe systems in Rust.
- Deep OS Integration: Work close to the kernel, focusing on FUSE, I/O paths, memory management, and scheduling.
- Scaling Primitives: Design the foundation for massive build systems like Android, Yocto, and embedded Linux.
- Performance Optimization: Hunt down bottlenecks across I/O and CPU to ensure our virtualization remains near-instant.
Ideal Candidate Profile:
- The Systems Mindset: You have a strong background in Rust or C/C++ and a deep understanding of Linux internals.
- Scale-Obsessed: You have experience with (or a burning desire to fix) large-scale build systems and developer tooling.
- Impact-Driven: You embody the "Own It" mentality - you see a friction point in the developer journey and you don’t stop until it’s gone.
- Curious & Collaborative: You enjoy translating real-world customer problems into robust, production-grade solutions.
- Low Ego, High Impact: Beyond being a brilliant coder, you are a thoughtful and empathetic teammate - someone who leads with kindness.
- Feedback Culture Champion: You embrace feedback and provide it thoughtfully; you see open, honest communication as the foundation of great teamwork.
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A Note on Our Search
We are looking for the best talent, wherever it may be. If you’re on the fence about whether you’re a perfect fit, please do apply - we value diverse backgrounds and unique problem-solving approaches.
Why Join Source.dev?
- 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.
“It took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what I’ve been looking for.”
Jessica, London
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