Company profile

Braintrust Tech Stack

Observability, tracing and evals platform for AI agents in production

Software Development San Francisco 51–200 employees Founded 2023 Privately Held

Braintrust builds observability and evaluation tooling for production AI agents, running on a multi-cloud base (AWS, Azure, GCP) with Kubernetes, Terraform and OpenTelemetry alongside Rust, Go and TypeScript. Job posts point to pressure from self-hosted and hybrid deployments, with ingest backlogs and query latency surfacing as scaling pains. Hiring is accelerating and senior-heavy, split between engineering and a fast-growing sales and post-sales motion across the US, UK and Singapore.

Tech Stack 48 technologies

Core StackAWS Kubernetes Terraform Python TypeScript Go Slack OpenAI Anthropic OpenTelemetry Node.js Rust PostgreSQL Redis Docker Grafana Prometheus Datadog Vite JavaScript React Azure GCP Gemini GPT esbuild SWC Turbopack pnpm SLSA+17 more

What Braintrust Is BuildingChallenges and projects from their job posts

◆Challenges

Supporting customer self-hosting and hybrid deployments
Ingest backlogs and rising query latency
Detecting AI regressions
Scaling post-sales while keeping costs neutral
Improving gross revenue retention
Software supply chain hardening

▲Active Projects

AI observability SDKs
Open source libraries for tracing and evaluating LLMs
Terraform modules for internal and customer deployments
Diagnostics, health checks and preflight validation tooling
Automation tools for testing and profiling
GTM strategy and technical enablement programs

Hiring Activity

Accelerating50 roles · 10 in 30d

Department

Engineering

Sales

Support

Design

Finance

Legal

Product

Seniority

Senior

Mid

Director

Junior

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About Braintrust

Braintrust is a San Francisco-based, privately held software company founded in 2023. It offers a platform that lets teams trace AI agent behavior in production, surface critical patterns in trace data, and run evaluations to improve agent quality. The company employs 51–200 people and sells to engineering teams building on LLMs from providers such as OpenAI, Anthropic and Gemini. It supports both hosted and customer self-hosted deployments, and maintains SDKs and open source libraries for tracing and evaluating LLM calls.

HeadquartersSan Francisco

Company Size51–200 employees

Founded2023

Hiring MarketsUnited States, United Kingdom, Singapore

Frequently Asked Questions

What tech stack does Braintrust use?

Braintrust runs on AWS, Azure and GCP with Kubernetes, Terraform and Docker, builds in Python, TypeScript, Go and Rust, and uses PostgreSQL, Redis, OpenTelemetry, Grafana, Prometheus and Datadog.

Is Braintrust hiring?

Yes, hiring is accelerating, led by senior engineering and sales roles, with support also growing. Openings span the United States, United Kingdom and Singapore.

What is Braintrust working on?

Current work includes AI observability SDKs, open source libraries for tracing and evaluating LLM calls, Terraform modules for customer deployments, diagnostics tooling, and testing and profiling automation.

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How this profile is built

Braintrust's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →

This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.