Description
Sierra is hiring a full-time Payments Platform Engineer to build secure, real-time card-capture and tokenization systems for AI agents. The role owns the platform, product, and safety-and-integrity workstreams, including intercepting keypad and spoken digits in live audio streams, managing short-lived tokens, controlling card-data egress, ensuring at-most-once payment actions, and extending tokenization to a privacy vault. The position requires 5+ years of backend, platform, or infrastructure experience, strong security and correctness skills, fluency in Go, and a degree in computer science or equivalent professional experience; payments experience is not required.
