
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)
| Company |
|---|
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”
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 highly resourceful and hands-on data person to own our data infrastructure and data pipeline. This person will have deep technical expertise in data engineering and the agency to tackle challenges across the entire data stack. If you thrive on solving problems, learning new technologies, and getting things done without waiting for permission, this role is for you.
What you'll do
What we're looking for
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.