Go SDK Engineer for Open Source AI Observability

Braintrust; Seattle (WA); On-site; USD 120,000 - 160,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

Daily lunch, snacks, and beverages

Flexible time off

Competitive salary and equity

Wifi & cellphone stipend

Job summary

Braintrust is hiring engineers to build open-source SDKs used to observe, understand, and optimize AI in production applications. You’ll own the full SDK lifecycle—from design to release—embedding your work in thousands of applications and shaping how AI is deployed across industries.

This role emphasizes developer experience, API craftsmanship, and fast, reliable libraries. You’ll collaborate with backend, platform, and product teams to deliver polish and value across environments.

Qualifications

• Expertise in Go and building fast, idiomatic libraries.
• Experience with production-grade open-source libraries.
• Familiarity with tracing/observability tools (OpenTelemetry) is a plus.

Responsibilities

• Build elegant, idiomatic SDKs forBraintrust's LLM evaluation and observability platform.
• Ensure libraries are easy to use and perform well, focusing on developer experience.
• Integrate with major AI providers and frameworks (OpenAI, Anthropic, Gemini).
• Build tools to improve testing, profiling and release workflows.
• Collaborate with backend, platform, and product teams for a cohesive developer experience.
• Engage with the community, help users merge fixes, and support adoption.

Skills

Go

Developer experience

Open source

Tools

Testing frameworks

Profilers

CI/CD pipelines

Packaging systems

Job description

Braintrust is hiring engineers to build open-source SDKs used to observe, understand, and optimize AI in production applications. You’ll own the full SDK lifecycle—from design to release—embedding your work in thousands of applications and shaping how AI is deployed across industries.

This role emphasizes developer experience, API craftsmanship, and fast, reliable libraries. You’ll collaborate with backend, platform, and product teams to deliver polish and value across environments.