Backend Engineer

Braintrust is revolutionizing AI system evaluation and deployment with their modern platform, serving cutting-edge customers in finance, healthcare, and tech. They're seeking a Backend Engineer to join their team and build the infrastructure behind advanced AI development tools.

The role involves working on a real-time, high-availability data platform that operates in both SaaS and self-hosted environments. You'll be responsible for scaling ingestion pipelines, evolving open source libraries, and ensuring reliable, observable, and fast system operations. The position is perfect for engineers who thrive in fast-paced environments and enjoy tackling complex systems problems with a product-focused approach.

As a Backend Engineer, you'll be at the heart of building the core platform powering LLM-native development. Your responsibilities will range from designing features for LLM usage insights to integrating with major AI model providers like OpenAI, Anthropic, and Gemini. You'll develop robust open source libraries, build real-time data pipelines, and ensure system reliability across different deployment environments.

The ideal candidate brings 5+ years of backend engineering experience, strong systems thinking, and proficiency in modern technologies like Node.js, Go, Python, Rust, and various databases. Experience with observability tools and a passion for system reliability are crucial. The role offers comprehensive benefits, including health insurance, 401k, flexible time off, and an AI stipend, making it an excellent opportunity for experienced engineers looking to make an impact in the AI infrastructure space.