Cryptographer – Security Engineer

Job Description: • Conduct technical security reviews of cryptographic protocols and implementations • Analyse protocol-level designs for soundness and attack surface • Review Rust, Go, and Solidity cryptographic implementations • Identify subtle vulnerabilities in mathematical constructions and real-world implementations • Write clear and precise security reports • Contribute to internal cryptographic research and methodology • Collaborate with protocol teams to improve security and design robustness • Potentially contribute to internal open-source projects such as Lighthouse Requirements: • Advanced knowledge of applied cryptography • Deep understanding of elliptic curves and finite field arithmetic • Familiarity with pairing-based cryptography and BLS signatures • Understanding of zero-knowledge systems (SNARKs, STARKs, PLONK, etc.) • Experience analysing or implementing DKG or threshold signature systems • Ability to read and reason about academic cryptography papers • Strong systems programming skills (preferably Rust or Go) Benefits: • Remote-first team • High-calibre technical peers • Opportunity to work on foundational infrastructure securing billions in value • Meaningful impact on the security of global decentralised systems Apply tot his job