Software Development Engineer - AWS Cryptography, Transport Libraries - Amazon Web Services

Key Responsibilities

• Design, implement, and maintain high‑performance TLS and QUIC libraries (s2n‑tls, s2n‑quic) used across AWS services.
• Lead the integration of post‑quantum cryptographic primitives and evaluate their impact on performance and security.
• Collaborate with open‑source communities to contribute patches, review pull requests, and ensure compliance with industry standards.
• Leverage Generative AI tools to accelerate secure code reviews, documentation, and automated testing pipelines.
• Work cross‑functionally with security, compliance, and product teams to define cryptographic requirements and validate implementations.

Requirements

• 5+ years of systems or security software development experience, preferably in C/C++ or Rust.
• Deep understanding of TLS/QUIC protocols, cryptographic primitives, and secure coding practices.
• Experience with post‑quantum cryptography research or implementation.
• Strong background in open‑source development, including contribution to major libraries.
• Excellent problem‑solving skills and ability to work in a fast‑paced, collaborative environment.