Join Humanoid's Platform Infrastructure team as a Software Engineer focused on device security and identity. You'll design and implement the cryptographic chain of trust, secure boot pipelines, key management infrastructure, and certificate lifecycle management that ensures only trusted software runs on trusted hardware across their fleet of humanoid robots. Working alongside senior engineers, you'll write production-quality backend and automation code spanning factory provisioning to cloud infrastructure, collaborating across firmware, applications, cloud, and operations teams. This role requires 5+ years of professional experience, strong CS fundamentals, proficiency in Python, C/C++, TypeScript, or Rust, comfort with Linux, and the ability to work on-site in San Diego.