Cryptographer – Security Engineer
Sigma Prime
full-time
Posted on:
Location Type: Remote
Location: United States
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About the role
- 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
Applicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills & Tools
RustGoSolidityapplied cryptographyelliptic curvesfinite field arithmeticpairing-based cryptographyBLS signatureszero-knowledge systemsDKG
Soft Skills
clear communicationcollaborationanalytical thinking