AI Platform Engineer — Build End-to-End Open-Model Routing

Fireworks; San Mateo (CA); On-site; USD 190,000 - 230,000; Full time

Job summary

Fireworks is seeking a product-minded software engineer to own surfaces that enable Nexus and the Fireworks platform. You will drive end-to-end features, from problem framing to shipping and observing real usage, targeting a production-grade experience for deeply technical developers.

You will work across frontend (React/TypeScript) and backend (Python/Go), extend APIs for easy adoption, and partner with Infrastructure, Research, Growth, Data, and Design to turn platform capability into

Qualifications

• 3+ years as a software engineer with time building and shipping user-facing products.
• Strong full-stack skills across frontend and backend, APIs, and databases.
• Track record shipping developer-facing products: APIs, dashboards, consoles, CLIs, or developer tools.

Responsibilities

• Own product features end-to-end across Nexus and Fireworks platform, including the intelligent router, FireConnect integrations, cost observability, enterprise controls, and developer console.
• Build routing and migration layer to score request difficulty in real time and optimize task routing to open models vs. customer providers.
• Extend FireConnect and APIs for easy adoption with minimal integration effort by teams.
• Work across stack (React/TS frontend, Python/Go backend, APIs, data layers) to ship production-ready surfaces for technical users.
• Collaborate with Infrastructure, Applied Research, Growth, Data, and Design to turn platform capability into developer-loved products.
• Instrument everything built and use data to remove friction for users.

Skills

Full-stack

React/TypeScript

Python/Go

APIs

Ownership

Developer tools

Job description

Fireworks is seeking a product-minded software engineer to own surfaces that enable Nexus and the Fireworks platform. You will drive end-to-end features, from problem framing to shipping and observing real usage, targeting a production-grade experience for deeply technical developers.

You will work across frontend (React/TypeScript) and backend (Python/Go), extend APIs for easy adoption, and partner with Infrastructure, Research, Growth, Data, and Design to turn platform capability into