Security Engineering Lead

Responsibilities

• Lead security audits of Espresso's distributed systems codebase
• Coordinate with engineering teams to raise concerns, communicate findings, and guide system hardening efforts
• Manage and review work of external security auditing teams
• Design and organize security audit processes with flexibility in approach
• Suggest improvements to testing and engineering practices for more secure, maintainable code

Requirements

• Solid software engineering principles, including low-level best practices and high-level distributed systems architecture
• Rust: ≥1 year async Rust experience, or Solidity: multiple years smart contract experience with security audits or formal verification
• Security audit or formal verification experience
• Security-critical industry experience as an engineer or architect
• Auditor, pentester, or QA tester background
• Adversarial thinking for vulnerability identification beyond happy-path scenarios
• Distributed systems design and testing experience
• Comfort diving into unknowns and asking questions

Preferred Qualifications

• Knowledge of testing and static analysis tools (e.g., Foundry, Slither)
• Blockchain, IoT, automotive, or finance industry experience
• Philosophy of software design shaped by security-critical systems work

Benefits

• Fully remote with flexible hours
• Competitive salary and equity package
• Regular international team off-sites
• Unlimited vacation policy
• Top-tier health, dental, and vision coverage for US employees

About the Company

Espresso Systems builds foundational infrastructure for the future of web3, developing the Espresso Network—the first base layer designed specifically for rollups. The network provides fast, secure finality and seamless cross-chain composability, solving fragmentation challenges in the Ethereum ecosystem. Espresso has raised approximately $60 million from leading investors including a16z, Greylock Partners, Electric Capital, Sequoia Capital, and Polychain Capital.