Blockstream

Security Architect

Remote. Posted 10 months ago

The role

The Security Architect will design, implement, and oversee secure systems and applications across enterprise products and infrastructure. You will partner with product, DevOps, and engineering teams to protect systems and data.

What you will do

  • Define and drive security architecture across applications, services, and infrastructure.
  • Partner with engineering teams to design and implement secure software systems.
  • Conduct threat modeling, risk assessments, and security reviews.
  • Develop and enforce secure coding practices, frameworks, and review processes.
  • Collaborate with DevOps on cloud and container security, CI/CD hardening, and access controls.
  • Evaluate and integrate security tools for code scanning, vulnerability management, and incident response.
  • Guide and mentor engineers on best practices for secure application development.
  • Stay ahead of emerging security trends, compliance standards, and attack vectors.

Required qualifications

  • 10+ years of experience in software engineering or security architecture roles.
  • Strong full-stack background with deep backend security expertise (Python, Go, C/C++, Rust, or similar languages).
  • Demonstrated experience designing and securing systems for enterprise fintech, banking, or blockchain environments.
  • Knowledge of cryptography, authentication, and key management.
  • Hands-on experience with cloud security (AWS, GCP, or similar).
  • Familiarity with threat modeling, secure SDLC, and modern application security frameworks (OWASP, NIST, ISO 27001).
  • Excellent communication skills.

Nice to have

  • Experience with Bitcoin, Lightning, or blockchain protocols.
  • Contributions to open-source security tools or projects.
  • Security certifications (CISSP, OSCP, CEH, or equivalent)

About the company

Blockstream is a leading Bitcoin company providing infrastructure solutions for enterprises, institutions, and individual users. They develop Bitcoin self-custody solutions, financial products, scaling technologies, and blockchain infrastructure.