
Jonah Cathcart
Lead Cryptography Engineer
Jonah Cathcart leads TrustThink’s cryptography work supporting U.S. Navy programs and has been a key contributor to the company for more than five years.
His work spans cryptographic implementation, secure software development, and the design of high-assurance systems that operate in complex, mission-critical environments.
Jonah brings a practical, engineering-first mindset to problems where correctness, trust, and long-term maintainability matter.

Areas of Focus
- Cryptographic algorithm implementation and evaluation
- Encryption and key management for high-assurance systems
- Secure software development
- Operational management systems for high-assurance devices
- Penetration testing and security assessment of automated vehicle systems
Work Highlights
- Leading cryptography-focused engineering work in support of Navy programs
- Contributing to automated vehicle penetration testing, helping identify and assess real-world security risks
- Implementing and evaluating cryptographic algorithms for secure communications and data protection
- Leading the design of an operational management system for high-assurance devices, focused on secure discovery, monitoring, and control