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Senior Security Engineer Cryptography

10 hours, 29 minutes ago
United States
Full-time
Senior
Security Engineer
Software Development
C C++ Cybersecurity Git Go Rust
Apply Now
Trail of Bits

Trail of Bits

Trail of Bits is a leading company specializing in computer and network security. Since 2012, they have been helping secure the world's most targeted organizations and products by combining high-end security research with a real-world attacker mentalit...

Internet Software & Services
51-250
Founded 2012
View All Jobs 4

Description

  • Lead cryptographic assessments of protocols, libraries, and application code, identifying weaknesses and recommending practical fixes.
  • Analyze symmetric, asymmetric, post-quantum, zero-knowledge, and multiparty-computation systems.
  • Build tools, test harnesses, and proofs of concept to improve cryptanalysis and assessment efficiency.
  • Plan engagements, identify risks early, lead technical discussions, and deliver precise client reports.
  • Contribute to assessment methodology, service development, mentoring, and technical practice improvements.
  • Collaborate with client engineers and internal specialists to support sound remediation decisions.
  • Contribute to open-source projects, research publications, and presentations when appropriate.

Requirements

  • Substantial applied experience evaluating cryptographic primitives, protocols, and implementations.
  • Strong mathematical foundation for interpreting research and reasoning about security assumptions.
  • Proficiency in Rust, Go, C, C++, or another systems/security-oriented language.
  • Experience with Git-based development workflows and code review.
  • Ability to test hypotheses, document evidence, identify specification-to-implementation gaps, and prioritize findings by impact.
  • Demonstrated ownership of complex technical work and sound judgment in ambiguous situations.
  • Strong technical writing and communication skills with engineers, researchers, and clients.
  • Must reside in and be authorized to work in the United States without employer sponsorship.
  • Experience with post-quantum, zero-knowledge, threshold, MPC, or privacy-preserving systems (preferred).
  • Research publications, open-source contributions, audit reports, protocol/API design, mentoring, or engagement-scoping experience (preferred).

Benefits

  • Base salary of $165,000–$220,000 plus potential performance bonus.
  • Fully company-paid health, dental, vision, disability, and life insurance.
  • 401(k) plan with a 5% base-salary match.
  • Remote-first work environment with 20 days of paid vacation.
  • Four months of parental leave.
  • $1,000 work-from-home stipend and $750 annual learning and development stipend.
  • $10,000 relocation assistance for employees moving to New York City.
  • Company-sponsored team events and philanthropic contribution matching up to $2,000 annually.

Interested in this position?

Apply directly on the company website

Apply Now

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