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Staff Software Engineer: AI-Powered Payment Infrastructure

Posted yesterday

sapiomMillbrae (CA)

SENIORITY

Lead

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About the role

Sapiom is hiring a staff software engineer to shape a large, critical piece of our payment infrastructure used by AI agents. You will own architecture, define checkout flows, and ensure reliability across complex, multi-merchant scenarios. The role emphasizes building a durable API surface and robust proof of what was agreed to, with an emphasis on accuracy and scale. The work concentrates on secure, auditable payments Rails and agent-driven purchases, with a focus on long-horizon reliability

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