Ethereum Foundation

Security Engineer

• Create bleeding edge LLM based tools to find vulnerabilities in the Ethereum Protocol
• Work with leading industry developers to securely fix and resolve discovered vulnerabilities
• Develop AI tools such as PR security reviewers and tools to review how clients implement specifications
• Work asynchronously and collaborate within a flat, remote global team
• Research, detect, and coordinate remediation of Ethereum protocol vulnerabilities

AI Security Researcher / Engineer

QA Engineer

• Implement and execute reliable, deterministic tests that ensure the robustness of protocol upgrades
• Improve test methods and enhance test infrastructure to improve efficiency and coverage of protocol feature testing
• Collaborate with other teams to ensure seamless code integration and test results
• Contribute to the open-source community by sharing ideas, improvements, and solutions in public channels
• Use technical expertise to enhance testing methods, implement tests for new and existing protocol features, and improve test infrastructure
• Work with complex subsystems integral to the Ethereum Protocol

Protocol Tester – Consensus Layer

Software Engineer

• The Ethereum Foundation is a global non-profit dedicated to supporting Ethereum’s long-term success.
• The EF builds and funds developer tooling at all levels of the stack, from languages and compilers to libraries to interact with the chain.
• As Developer Tooling Coordinator, you will help drive strategic technical decisions that shape Ethereum's developer ecosystem.
• This is a technical leadership role that blends hands-on development expertise with strategic planning and resource coordination.
• You'll help tackle critical strategic questions that require deep technical expertise, including: What should our strategy be around language support? How do we balance supporting legacy projects vs. newer promising experiments? What tools should the EF develop internally vs. rely on others? How should AI-assisted development reshape our tooling priorities and what new developer experiences should we enable?
• This role requires someone who can spot emerging trends, contribute to opinionated technical decisions based on leading indicators, and work collaboratively across teams—from diving deep into specific codebases to coordinating with EF leadership on grants and broader support strategy.
• The work environment is non-traditional—remote with optional offices; travel to Devcon/Devconnect; pseudonym work with KYC.