Security Architect
Blockstream · Remote
About this role
## Security Architect **About Blockstream** Blockstream (https://blockstream.com/) was founded in 2014 by Dr. Adam Back and a group of fellow cryptographers and engineers passionate about Bitcoin’s potential. Today, Blockstream provides leading Bitcoin infrastructure and solutions for enterprises, institutions, and individual Bitcoin users—spanning self-custody, Bitcoin-based financial products, second-layer scaling technologies, and enterprise-grade blockchain infrastructure. **Role Overview** We’re seeking an experienced **Security Architect** to design, implement, and oversee secure systems and applications across Blockstream’s enterprise products and infrastructure. You’ll be a full-stack engineer with a strong backend focus, deep secure application design expertise, and prior experience building or securing platforms in fintech, banking, or blockchain. You’ll partner closely with **product, DevOps, and engineering teams** to protect Blockstream’s systems and data from evolving threats—without compromising innovation or performance. --- ## What You’ll Be Doing (Responsibilities) - Define and drive security architecture across applications, services, and infrastructure. - Partner with engineering teams to design and implement secure software systems (backend and data security focus). - Conduct threat modeling, risk assessments, and security reviews for new and existing products. - 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—especially in fintech and blockchain. --- ## What We Look For in You (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). - 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—able to clearly articulate risks and solutions to technical and non-technical stakeholders. --- ## Nice To Haves (Preferred Qualifications) - Experience with **Bitcoin, Lightning, or blockchain protocols**. - Contributions to open-source security tools or projects. - Security certifications (CISSP, OSCP, CEH, or equivalent) are a plus but not required. --- ## 🔒 Stay Safe from Job Scams All official Blockstream communication will come from an **@blockstream.com** email address. We will never ask you to share sensitive information or purchase equipment during the hiring process. If in doubt, contact **hr@blockstream.com**. Learn more: https://consumer.ftc.gov/consumer-alerts/2022/05/want-work-home-spot-scams-first
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