Braintrust 路 San Francisco; New York City; Seattle
Build user-facing features of Braintrust's observability product, including a prompt playground, prompt management with versioned comparisons, a multiplayer human review system, and LLM output analysis. The frontend is modern TypeScript and React with a visualization-heavy UI. Requires expert TypeScript, React, HTML, CSS, SQL, and NextJS skills.
Braintrust is the agent observability platform. By actively applying intelligence to agent traces and automatically surfacing the most critical patterns, Braintrust gives teams the visibility to understand how agents behave in production and the tools to improve them.
Teams at Notion, Stripe, Box, OpenAI, and Cloudflare use Braintrust to trace their agents, find the issues in their observability data, and run evals that tell them how to improve.
We're looking for a product engineer who is passionate about building tools that users love and use every day. You'll work on the core product, hang out with users (developers, product managers, and designers working in AI), and play a key role in shaping the roadmap.
Under the hood, Braintrust is a high performance, local-first, visualization-heavy UI built with modern Typescript and React. Our users work at some of the world's best technology companies and expect our product to be lightning fast, reliable, and intuitive.
Core responsibilities:
Build the user-facing pieces of Braintrust, such as:
Braintrust is an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status.