Software Engineer, Product

This listing is synced directly from the company ATS.

Role Overview

This is a senior-level product engineering role focused on building and enhancing Braintrust's AI observability platform, working on core UI components and user-facing features like prompt playgrounds and multiplayer review systems. The engineer will collaborate closely with developers, product managers, and designers to ensure a frictionless, high-performance experience, directly impacting how teams at top tech companies improve their AI systems. Responsibilities include contributing to foundation architecture, efficient data loading, and scalable solutions for AI output analysis.

Perks & Benefits

The role is fully remote with flexible time off, offering medical, dental, and vision insurance, plus daily lunch, snacks, and beverages. It includes a competitive salary and equity, an AI stipend for professional development, and a startup-like culture that values innovation and user interaction, with no explicit time zone restrictions, allowing for a balanced work-life setup.

⚠️ This job was posted over 23 months ago and may no longer be open. We recommend checking the company's site for the latest status.

Full Job Description

About the company

Braintrust is the AI observability platform. By connecting evals and observability in one workflow, Braintrust gives builders the visibility to understand how AI behaves in production and the tools to improve it.

Teams at Notion, Stripe, Zapier, Vercel, and Ramp use Braintrust to compare models, test prompts, and catch regressions — turning production data into better AI with every release.

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.

What you'll do

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

  • AI Stipend

Equal opportunity

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.

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