Braintrust
AI & Machine LearningDirect Ashby career site

Software Engineer, Product

Location
San Francisco, CA · On-site
Job type
Full-time
Level
Senior
Listed
23 days ago

Skills & highlights for this role

  • TypeScript
  • React
  • NextJS
  • SQL
  • CSS

Also useful

  • LLM prompt engineering

Stated benefits & perks

  • Medical
  • Dental
  • Vision
  • Flexible time off

About the Role

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

  • Ensuring our customers always have a frictionless experience for enabling AI observability in their systems.
  • Contribute to foundation UI architecture that focuses on performance and efficient data loading patterns.

Build the user-facing pieces of Braintrust, such as

  • A first-class prompt playground experience supporting multiple models across thousands of user inputs.
  • A system for prompt management, configuration, and versioned comparisons.
  • A fully multiplayer, scalable human review system.
  • LLM output analysis and comparison across arbitrarily large datasets.

Ideal Candidate Credentials

  • Expert-level understanding of Typescript, React, HTML, CSS, SQL, NextJS
  • Previous experience founding or working at startups is a plus
  • Has written prompts / tinkered with GPT models and apps

Benefits Include

  • Medical, dental, and vision insurance
  • Daily lunch, snacks, and beverages
  • Flexible time off
  • Competitive salary and equity
  • Wifi & cellphone stipend

About the Company

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.

Read the original posting

From Braintrust's careers page, first listed on Rolev.ai on October 17, 2026. Rolev.ai is not the employer.

How Rolev.ai helps with this application

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Common questions

Where is the Software Engineer, Product job at Braintrust located?

This Software Engineer, Product position at Braintrust is located in San Francisco, CA (On-site). Always check Braintrust's application page for specific state eligibility or relocation policies.

What qualifications are required for Software Engineer, Product at Braintrust?

For the Software Engineer, Product role, Braintrust highlights experience with TypeScript, React, NextJS, SQL, CSS. Rolev.ai can score your existing resume against these requirements and show any skill gaps before you apply.

How do I apply for the Software Engineer, Product position at Braintrust?

This listing links directly to Braintrust's Ashby application page. You can apply directly on Braintrust's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Ashby application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.