AI Product Engineer Build the console, API experience, and surfaces developers touch every day. Remote · San Francisco, CA · Bangalore, India

Run BIOS INC.; San Francisco (CA); Remote; USD 150,000 - 210,000; Full time

Job summary

Run BiOS INC. is seeking an AI Product Engineer to build the Run BiOS platform surfaces—the console, API experience, model catalog, and pricing calculator. You will own frontend architecture using TypeScript, React, and Next.js, and shape the developer experience for an OpenAI-compatible API.

You will productize ML-driven features and monitor performance, then iterate based on user feedback. Ideal candidates bring 5+ years shipping production web apps with strong TS/React, full-stack API design

Qualifications

• 5+ years shipping production web applications.
• Strong TypeScript and React experience.
• Full-stack comfort designing an API, writing migrations, and polishing the UI it drives.
• Genuine fluency in LLM concepts—tokens, context windows, adapters, fine-tuning.
• Clear writing; docs and interface copy are part of the product.

Responsibilities

• Design, build, and ship end-to-end features across the Run BiOS console and public surfaces.
• Shape the developer experience of the API, including error messages and SDK ergonomics.
• Own frontend architecture in TypeScript, React, and Next.js, and the API boundaries behind it.
• Productize research and ML ideas into usable features.
• Instrument activation, funnels, and latency budgets; act on signals.

Skills

TypeScript

React

Full-stack API design

LLM concepts

Product judgment

Clear writing

Tools

Next.js

REST API design

Job description

Run BiOS serves open models through one OpenAI-compatible API, priced per million tokens, and fine-tunes custom models on dedicated GPUs — customers own the weights. As an AI Product Engineer you build the surfaces that make that engine feel inevitable: the platform console, the API experience, the model catalog, the pricing calculator, and the docs developers read before their first call.

What you'll do:

• Design, build, and ship end-to-end features across the Run BiOS console and public surfaces — from model catalog to billing to onboarding.
• Shape the developer experience of one OpenAI-compatible API: error messages, streaming behaviour, SDK ergonomics, quickstarts.
• Own frontend architecture in TypeScript, React, and Next.js, and the API boundaries behind it.
• Productize what research and applied ML land — new models, new fine-tuning methods, router improvements — as visible, usable features.
• Instrument what you ship: activation, funnels, and latency budgets, and act on what they say.
• Talk to users and read support threads. Close the loop between what developers hit and what we build next.

What you bring:

• At least 5 years shipping production web applications, with strong TypeScript and React.
• Full-stack comfort: you can design an API, write the migration, and polish the UI it drives.
• Genuine fluency in LLM concepts — tokens, context windows, adapters, fine-tuning — even if you have never trained a model yourself.
• Product judgment: you can argue for a scope cut, and be right.
• Clear writing. Our docs and interface copy are part of the product.