Bitcoin Security Engineer: Offensive Crypto Wallet Testing

Strategy; Tysons (VA); On-site; USD 104,000 - 187,000; Full time

Job summary

Strategy is seeking a Bitcoin Security Engineer in Tysons Corner, VA to expand the security program. You will hands-on test wallets, hardware, and custody systems, and perform adversarial research to raise the security bar across the bitcoin custody ecosystem.

Join a team focused on cryptography, security testing, and threat modeling, with opportunities to publish findings and influence custody and infrastructure security posture.

Qualifications

• 6+ years of hands-on penetration testing or red-team experience.
• Expertise in cryptographic systems, blockchain, or bitcoin security.
• Bachelor's degree; master's preferred; relevant certifications welcomed.
• Ability to translate findings into actionable guidance.

Responsibilities

• Lead bitcoin wallet and hardware security tests across single-sig, multisig, MPC, and hardware deployments.
• Design and run threat models, custody workflows, and transaction‑level tests.
• Evaluate custodians, exchanges, and service providers for key management and recovery claims.
• Develop tooling and automation to scale security testing and reporting.

Skills

Penetration testing

Security research

Cryptography

Threat modeling

Adversarial mindset

Education

Bachelor's degree in CS/SE

Master's preferred

Tools

Python

Rust

C/C++

Go

Fuzzers

Job description

Strategy is seeking a Bitcoin Security Engineer in Tysons Corner, VA to expand the security program. You will hands-on test wallets, hardware, and custody systems, and perform adversarial research to raise the security bar across the bitcoin custody ecosystem.

Join a team focused on cryptography, security testing, and threat modeling, with opportunities to publish findings and influence custody and infrastructure security posture.