Security Software Engineer (L6), Security Protocols & Foundations

What you'll do

• Design and build security primitives for large-scale content delivery and innovative streaming protocols.
• Translate business and product goals into technical security requirements and production implementations.
• Develop a consolidated set of application security primitives that extend beyond standard libraries like OpenSSL.
• Optimize crypto and transport security layers on edge appliances for maximum performance and resource efficiency.
• Develop host-side DoS resilience primitives and kernel integrations to throttle abusive traffic.
• Conduct vulnerability research and mitigation for application and protocol-level issues across the platform.
• Serve as the security owner for cryptographic foundations and liaison with external security communities.

What we're looking for

• Proven track record of architecting and implementing security features that meaningfully improve system security.
• Deep, hands-on expertise in applied cryptography and security protocols including TLS, DTLS, QUIC, signatures, key management, and AEAD.
• Experience with design, development, and deployment of end-to-end security controls from architecture through production.
• Ability to partner with business and product stakeholders to translate goals into security requirements and technical designs.
• Ability to define and self-manage cross-functional projects fueled by ambiguous questions.
• Experience designing DoS or resource-exhaustion mitigations for high-scale services (preferred).
• Contributions to OpenSSL or similar crypto libraries, or to security protocol standards (preferred).
• Active participation in IETF, Crypto Forum Research Group (CFRG), or Real World Crypto (preferred).