Senior Backend Engineer

Key Responsibilities:

• Lead Infrastructure Development: Lead or support development of high-performance backend infrastructure for rollups, including block builders, sequencers, and decentralized execution environments powered by TEE technology.
• Own Critical Infrastructure: Own key infrastructure components across CI/CD, observability, automation, and runtime performance tooling that support our production systems serving millions of users.
• Cross-functional Collaboration: Collaborate closely with protocol, research, and backend teams to design infrastructure that balances fast UX with decentralization goals and censorship resistance.
• Production Excellence: Debug production systems at the OS, network, or runtime level and drive reliability improvements across the stack to maintain our industry-leading uptime standards.
• Open Source Leadership: Contribute to and lead open-source infrastructure projects that advance the MEV ecosystem and blockchain scalability.

Requirements:

• Experienced Infrastructure Engineer: 4-10 years of experience with production systems and deep understanding of infrastructure, platform engineering, or DevOps concepts at scale.
• Systems Programming Expert: Strong skills in Rust or Go, with the ability to build high-performance, secure systems.
  • Bonus points if you've contributed to execution layer/node projects like Geth, Reth, or rbuilder.
• Excellent Communicator: Whether working independently or leading cross-functional teams, you have exceptional communication and coordination skills for our remote-first, global environment.
• Impact-Driven: You're motivated by solving hard problems that have asymmetric impact and strike at the core of crypto's infrastructure challenges.

Nice-to-Haves:

• Ethereum Infrastructure Experience: Experience running Ethereum infrastructure, such as clients, builders, rollup sequencers, or MEV-Boost components.
• Open Source Contributions: Contributed to open-source infrastructure tooling or participated in protocol engineering discussions.
• Trusted Execution Environments: Worked with TEEs, secure enclaves (like Intel TDX), or other trusted compute primitives - particularly relevant as we migrate our infrastructure to TEE-based systems.
• High-Performance Systems: Built high-throughput or latency-sensitive systems (e.g., trading infrastructure, real-time data processing).
• Blockchain Ecosystem Knowledge: Deep understanding of MEV, L2 scaling solutions, or DeFi protocols.

Details that matter:

• Significantly above market rate equity compensation package
• Unlimited PTO with a high level of freedom and autonomy for your work
• Attractive health coverage package for US employees
• $3000 Yearly budget for your individual learning and development goals
• Work alongside the brightest minds in the crypto space
• Help save the world by ensuring crypto remains decentralized, permissionless and censorship-resistant
• Remote working, while we have a preference for EU/US time zones, you can work from anywhere in the world
• Paid travel - 2 x team on-site in different parts of the world per year plus periodic travel to events

At Flashbots, we are committed to building a diverse and inclusive team. We welcome applications from all qualified candidates regardless of gender, race, ethnicity, religion, sexual orientation, age, or disability status.