# Backend/Infra Engineer at Judgment Labs

- Company: Judgment Labs
- What the company does: Backed by Lightspeed.
- Company website: https://judgmentlabs.ai/
- Type: Startups (AI role)
- Level: Mid level
- Location: San Francisco
- Work setup: On-site
- Posted: 2026-06-15
- Apply by: 2026-10-08
- Apply: https://jobs.ashbyhq.com/judgmentlabs/e11f2965-ef1a-4fe9-8bed-76fe3827350a
- Page: https://www.1752.vc/careers/jobs/judgment-labs-backend-infra-engineer/

## About the role

We’re looking for a Senior Backend Engineer to own the systems that ingest, structure, evaluate, and serve agent experience data at production scale.

## What they're looking for

- Strong backend engineering experience building and operating production systems under real load
- Excellent fundamentals in distributed systems, API design, data modeling, reliability, and performance
- Experience working with high-volume event, trace, log, metric, or telemetry data
- Strong intuition for data systems: query patterns, storage layout, indexing, partitioning, latency, correctness, and cost
- Comfort owning systems beyond initial launch: debugging production issues, improving observability, scaling bottlenecks, and cleaning up abstractions as the product evolves
- Ability to work across backend, data, product, and infrastructure boundaries rather than treating them as separate silos

Tags: Engineering