[Remote] Software Engineer, Backend

Note: The job is a remote job and is open to candidates in USA. Braintrust is the AI observability platform focused on enhancing AI performance in production. The backend engineer will build infrastructure for AI development tools, focusing on real-time data platforms and scalable ingestion pipelines.

Responsibilities

• Design and ship features that give users deep insight into their LLM usage and performance
• Integrate, proxy, cache, and collect data from OpenAI, Anthropic, Gemini, and other major model providers that our customers rely on
• Develop and evolve robust, efficient open source libraries for tracing and evaluating LLM calls inside customer applications
• Build highly available real-time data pipelines to ingest, store, and query large volumes of structured and semi-structured AI usage data
• Collaborate closely with our product engineers to ship polished, end-to-end features that solve real problems for our customers, such as bundling and uploading javascript and python code snippets to be used as online, on-demand function calls for LLM workflows
• Support for parsing and uploading attachments from LLM multimodal outputs into long term storage
• Implement role-based access controls and data retention policies for enterprise use cases

Skills

• 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 integrity
• Proficient in modern backend technologies (e.g., Node.js, Go, Python, Rust, Postgres, Redis, Terraform, Docker, AWS)
• Experience with observability tooling (e.g., Grafana, Prometheus, Datadog, 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 decisions, shares context, and helps lift the team

Benefits

• Medical, dental, and vision insurance
• Daily lunch, snacks, and beverages
• Flexible time off
• Competitive salary and equity
• AI Stipend

Company Overview

Braintrust is an AI-native observability startup that helps teams measure, evaluate, and improve AI models and products. It was founded in 2023, and is headquartered in San Francisco, California, USA, with a workforce of 51-200 employees. Its website is https://www.braintrust.dev.

Company H1B Sponsorship

Braintrust has a track record of offering H1B sponsorships, with 1 in 2026, 2 in 2025. Please note that this does not guarantee sponsorship for this specific role.