Build the auth, billing, and Playground systems that let Cohere customers self-serve frontier AI

Cohere's Inference team is hiring a full-stack engineer to work across the platform layer that lets customers understand, trust, and pay for Cohere's models — improving auth/billing/payment systems, extending the interactive Playground, and building deployment management features. The role requires 5+ years writing clean backend code (Golang/React stack) and real experience with payment or subscription/usage-based SaaS systems, plus comfort writing minimal, low-resource, security-constrained code without leaning on the most popular libraries.

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Payment/billing systems: subscription or usage-based SaaS, freemium models
Full-stack ownership across Golang backend and React frontend
Writing minimal, dependency-light code for low-resource, security-constrained environments
Auth and platform security for a customer-facing developer product
Reading and fixing code outside one's own module/codebase
Operating in fast-paced, shifting-priority environments