Security Software Engineer (L6), Security Protocols & Foundations

Netflix is a streaming entertainment company that builds technology for delivering content worldwide. The Security Software Engineer will own protocol and foundational security for Open Connect edge appliances by designing security primitives, optimizing cryptographic and transport security layers, developing denial-of-service mitigations, and researching vulnerabilities.

Responsibilities:

• Design and build security primitives that are necessary for existing and innovative new streaming protocols for large scale content delivery
• Partner with business and product stakeholders to translate their goals into security requirements and technical design and implementation
• Develop and own a consolidated set of application security primitives used across our delivery paths, built once rather than separately per application, extending and going beyond what libraries like OpenSSL provide
• Optimize the crypto and transport security layers on OC appliances for performance and resource efficiency
• Develop primitives and mitigations for host-side DoS resilience, including kernel integration to throttle abusive traffic, partnering with adjacent teams for end-to-end protection of our infrastructure
• Conduct vulnerability research and mitigation for application and protocol-level vulnerabilities across the OC platform
• Serve as the security owner for OC's protocols and cryptographic foundations and as a liaison with partner organizations, staying ahead of the industry through engagement with key cryptography and security communities
• Demonstrate versatility by learning and adapting to new architectures and features as they evolve

Requirements:

• Proven track record of architecting and implementing security features that meaningfully improve system security
• Deep, hands-on expertise in applied cryptography and security protocols and techniques (TLS, DTLS, QUIC, signatures, key management, AEAD)
• Experience with design, development, and deployment of end-to-end security controls, from architecture through production
• Success at partnering with others to improve the security posture through cross-functional changes
• Have the ability to define and self-manage cross-functional projects fueled by ambiguous questions
• Able to collaborate with business and product stakeholders to translate their goals into security requirements and technical design and implementation
• Are a self-starter, curious and not afraid to ask when in doubt
• Are a quick learner and excited about learning new technologies
• Advocate thoughtful collaboration, take pride in your work and enjoy taking full ownership of projects from conception to production
• Experience designing DoS / resource-exhaustion mitigations for high-scale services
• Contributions to OpenSSL or similar crypto libraries, or to security protocol standards
• Active participation in IETF, Crypto Forum Research Group (CFRG), or Real World Crypto
• Experience securing live streaming or media delivery protocols
• Experience working on highly distributed systems and fuzzing complex systems
• Experience securing FreeBSD and Linux
• Experience with C, Golang, Python