AI · React
ABOUT THE ROLE
Join a small, technical AI company building infrastructure that helps enterprise AI agents improve through production feedback. This backend-leaning full-stack role focuses on reliable evaluation systems and includes ownership of product features from design through delivery.
WHAT YOU'LL DO
- Build backend systems for agent evaluation and continuous improvement.
- Design data models for evaluation datasets, experiment runs, agent traces, knowledge versions, findings, and customer-defined quality criteria.
- Develop and operate enterprise integrations, including authentication, OAuth, webhooks, incremental syncs, backfills, rate limits, retries, and monitoring.
- Take features from technical design through implementation, deployment, monitoring, customer feedback, and iteration.
- Work with customers to diagnose system failures and turn specific needs into reusable product capabilities.
- Build product interfaces across the full stack while contributing to architecture and product decisions.
WHAT WE'RE LOOKING FOR
- Two to four years of experience building and operating production software, including experience at a fast-paced startup.
- Hands-on machine learning engineering experience that includes model development.
- Strong production experience with TypeScript and Node.js or Bun, and the ability to work across the full stack.
- Strong PostgreSQL knowledge and practical experience with Redis, job queues, background workers, or workflow systems.
- Understanding of why evaluating nondeterministic AI agent systems differs from conven