Staff Engineer, API Core Platform

Staff Engineer — API Core Platform

About the role

Together AI is seeking an experienced Backend Engineer to found Together’s API Platform team within the Production Foundations organization. In this role, you will define, build, and scale the core systems and architecture that power Together’s mission-critical cloud control-plane APIs — including public customer APIs used directly by customers and through SDKs and CLIs, as well as the client APIs powering Together’s Cloud UI. This team is distinct from Together’s dedicated Inference API team, but partners closely with it to deliver a cohesive customer platform experience.

In the near term, you will improve and standardize the backend API layer within our primary Next.js monolith, raising the bar on reliability, performance, and consistency. In parallel, you will design and lead the evolution toward scalable, purpose-built next-gen API platform solutions optimized for different Public API and Client API use cases and traffic patterns — defining the lon