OpenAI

Staff Backend Engineer, Financial Engineering

San Francisco, CA

Staff

HYBRID

OpenAI's Financial Engineering team is hiring a Staff Backend Engineer to design and build the financial systems powering ChatGPT, the API platform, and other OpenAI products. You'll work on purchasing flows, subscriptions, billing, product catalogs, entitlements, and usage metering at global scale. The role spans backend services and data pipelines, with ownership from early design through production. Experience in payments or billing is a plus but not required.

Backend system design

Distributed systems

Data pipelines

API design

High-volume transaction processing

System reliability and fault tolerance

Financial record consistency

Cross-functional collaboration

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