Senior Security Engineer Cryptography
Core
Review and strengthen high-assurance software and cryptographic systems across technology, finance, defense, and blockchain; evaluate cryptographic designs and implementations for security properties.
Role type
Senior individual-contributor security engineer (cryptography)
Builds
Cryptographic assessments, tooling for cryptanalysis and implementation review, technical reports
Domain
Cybersecurity, Cryptography, Post-quantum cryptography, Zero-knowledge proofs
Deliverable
production ML models | product features | dashboards & analysis | research | client delivery | infrastructure
Required skills
Applied cryptography evaluation, Mathematical fluency, Systems programming (Rust/Go/C/C++), Code review, Threat modeling, Technical writing, Hypothesis testing, Client communication
Preferred skills
Post-quantum cryptography, Zero-knowledge proofs, Multi-party computation, Cryptographic API design, Security research publication, Open-source contributions
Technologies
Rust, Go, C, C++, Git
Responsibilities
Lead cryptographic assessments of protocols and libraries; Analyze advanced constructions including post-quantum and zero-knowledge systems; Build tooling for cryptanalysis and implementation review; Own client delivery and produce precise risk reports; Shape the practice by mentoring and developing methodologies; Share learnings via open-source or publications
Seniority
Senior, hands-on IC
