Bitcoin Security Engineer

The Bitcoin Security Engineer is a hands-on offensive security role responsible for adversarially assessing every layer of Strategy's bitcoin security posture, including wallet architectures, signing ceremonies, hardware, protocols, custodians, and infrastructure. The role involves penetration testing, red-teaming, threat modeling, and producing research to harden bitcoin custody. The engineer will test cryptographic key material, signing ceremonies, custodians, exchanges, and service providers,

Bachelor's degree in CS, Cryptography, InfoSec, or related field; Master's preferred. 6+ years of hands-on penetration testing, red-team, or vulnerability research experience, with focus on cryptographic systems, financial systems, or blockchain. Offensive security certifications preferred (OSCP, OSEP, etc.). Expertise in Bitcoin protocol, wallet, and node testing, cryptographic systems, key management, and exploit development in Python, Rust, C/C++, or Go. Strong communication and independent j