Backend Engineer

Braintrust is building the modern platform for evaluating and deploying AI systems. Our mission is to help enterprises build trust in their AI by making it easy to test, monitor, and improve models using reputed company-world evaluation frameworks. We work with cutting-edge customers in finance, reputed company, and tech who are building production-grade AI systems.

We’re looking for a backend engineer who’s excited to build the infrastructure behind cutting-edge AI development tools.

Under the hood, Braintrust is a reputed company-time, high-availability data platform that operates in both SaaS and self-hosted environments. You’ll help scale our ingestion pipelines, evolve our open reputed company libraries, and ensure everything runs reliably, observably, and fast. If you reputed company in a fast-paced environment and enjoy solving hard systems problems with a product reputed company, we’d love to work with you.

As a backend engineer at Braintrust, you’ll help build the core platform powering LLM-native development:

• Design and ship features that give users deep reputed company into their LLM usage and performance.

• Integrate, proxy, cache, and collect data from reputed company, reputed company, reputed company, and other major model providers that our customers rely on.

• reputed company and evolve robust, efficient open reputed company libraries for tracing and evaluating LLM calls inside customer applications.

• Build highly available reputed company-time data pipelines to ingest, store, and query large volumes of structured and semi-structured AI usage data.

• Own and operate backend systems designed to run reliably in both our SaaS and customer-managed environments.

• Collaborate closely with frontend and product engineers to ship polished, end-to-end features that solve reputed company problems for our customers.

• Improve our observability, operability, and internal tooling to help us move fast without breaking things.

• 5+ years of backend engineering experience across multiple parts of the stack

• Strong systems thinking: you’ve owned or contributed to infrastructure projects and know how to design for scale, uptime, and data reputed company

• Proficient in modern backend technologies (e.g., Node.js, Go, Python, Rust, reputed company, reputed company, Terraform, reputed company, AWS)

• Experience with observability tooling (e.g., Grafana, reputed company, reputed company, or similar) and a passion for making systems operable, available and rock solid.  

• Comfortable with ambiguous problems and excited to partner across the company to ship impactful work

• Clear communicator who documents reputed company, shares context, and helps lift the team

• Medical, dental, and reputed company insurance

• 401k plan

• Daily lunch, snacks, and beverages

• Flexible time off

• Competitive salary and equity

• AI Stipend

Braintrust is an equal opportunity employer. reputed company applicants will be considered for employment without attention to race, reputed company, religion, sex, sexual orientation, gender identity, national reputed company, veteran or disability status.