Software Engineer, Payments Infrastructure is open at Sierra in San Francisco, CA. The posting gives a salary of $230K - $390K. Posted on Oct 22, 2026, and still on Sierra’s careers page when we last checked, on Nov 14, 2026.
About the role
The agent must collect and use a card number but can never see it. This work sits across four hard technical domains: payments, security, real-time voice, and LLMs. Voice is the core challenge. A caller speaks or types a card number in a live, low-latency audio stream, and the digits must never reach the model, while the model stays on the call. Sierra owns every system that touches card data, and one small team…
The opening lines of the posting. The rest is on Sierra’s careers page.
Hiring at Sierra
Sierra has 198 open roles right now, 21 of them remote. Most are in Engineering, Sales & Business Development and Product. The median advertised salary across its roles with a published range is $285K. See all its roles
