engineering
Posted Jul 28, 2025Open Source Engineer - Go
at Braintrust
United StatesRemote
Responsibilities
- - Build tools and automation to improve testing, profiling and simplify release workflows.
- - Collaborate closely with backend, platform, and product teams to ensure a cohesive and polished developer experience.
Requirements
- 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 hiring engineers to build the open-source libraries that customers use to observe, understand, and optimize how AI operates inside their production applications.
- They power evaluation and observability pipelines across a wide range of environments, frameworks, and AI providers.
- You’ll own the full SDK lifecycle: design, implementation, release, documentation, and community support.
- Your work will be embedded in thousands of applications and help define how AI is adopted and operationalized across industries.
- WHAT YOU’LL DO - Build elegant, idiomatic, and resilient SDKs that power Braintrust’s LLM evaluation and AI observability platform. - Ensure our libraries are easy to use, efficient to run, and a delight to work with, prioritizing developer experience and performance.
- - Integrate with major AI providers, frameworks, and platforms our customers rely on, such as OpenAI, Anthropic, and Gemini.
- - Have deep expertise in Go and understand what it takes to build fast, idiomatic, and reliable libraries in that ecosystem.
- - Are proficient with the tooling needed to build robust SDKs, such as testing frameworks, profilers, CI/CD pipelines, and packaging systems.
- - Know how to wrap, patch, or extend existing frameworks and SDKs to inject observability and control without breaking developer workflows. - Have
Benefits
- experience maintaining or contributing to production-grade open-source libraries, ideally used across multiple environments. - Bonus: You’ve contributed to popular open source projects, led SDK adoption at your organization, are familiar with tracing and observability tools like OpenTelemetry, or worked on tools in the LLM/AI ecosystem.
- 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.
Additional details
- This role is ideal for engineers who are passionate about developer experience, API craftsmanship, and building fast, reliable, and idiomatic libraries.
- - Be a great community ambassador: talk with our users, understand their issues, help them get their fixes merged and have deep empathy for our users.
- YOU MIGHT BE A FIT IF YOU: - Are customer-obsessed and passionate about solving real-world problems for developers.
- - Care deeply about developer experience, from clean APIs and clear docs to thoughtful error handling and backward compatibility.
- All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status.