
Braintrust is the AI observability platform helping teams measure, evaluate, and improve AI in production. By connecting evals and observability in one workflow, teams at Notion, Stripe, Zapier, Vercel, and Ramp ship quality AI products at scale.

Braintrust is the AI observability platform helping teams measure, evaluate, and improve AI in production. By connecting evals and observability in one workflow, teams at Notion, Stripe, Zapier, Vercel, and Ramp ship quality AI products at scale.
What they do: AI observability and evaluation platform for production AI
Notable product pieces: SDKs (multiple languages), Brainstore (AI traces DB), automated eval tooling
Customers / users: Used by teams at Notion, Stripe, Zapier, Vercel, and Ramp
Team size (evidence): 116 employees
Recent funding: Series B $80M led by ICONIQ (Feb 2026)
AI observability, evaluation, and production quality for AI systems
AI infrastructure / observability
$36M
$80M
“Includes investors such as Greylock, Andreessen Horowitz, ICONIQ, Elad Gil, Basecase Capital, Datadog, Databricks Ventures, Greg Brockman, Guillermo Rauch”
| Company |
|---|
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 an AI Engineer to work directly with our most strategic customers and help them successfully deploy, scale, and extract value from Braintrust in real production environments.
This is a deeply technical, customer-facing role at the intersection of engineering, product, and go-to-market. You’ll partner closely with customer engineering teams to instrument real AI workflows, establish production baselines, operationalize evaluations, and build the feedback loops that make AI systems reliable at scale.
You will need strong judgment about how AI systems behave in the real world, how to evaluate them, and how to improve them iteration by iteration.
If you are excited by the challenge of solving open-ended problems, enjoy shipping quickly, and take full ownership of customer outcomes, this role offers outsized impact on both customer success and Braintrust’s product roadmap.
What You’ll Do
What You’ll Bring
Nice to Haves
Benefits include
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.