# AI/ML Engineer at Lemma

- Company: Lemma (YC F25)
- What the company does: Production Monitoring for AI agents. Backed by Y Combinator.
- Company website: https://www.uselemma.ai/
- Type: Startups (AI role)
- Level: Mid level
- Location: San Francisco, CA, US
- Work setup: On-site
- Pay: $120K to $200K base salary per year (USD)
- Posted: 2026-10-03
- Apply by: 2026-11-17
- Apply: https://www.ycombinator.com/companies/uselemma/jobs/vyHNWKs-ai-ml-engineer?utm_source=1752vc&utm_medium=careers
- Page: https://www.1752.vc/careers/jobs/lemma-ai-ml-engineer/

## About the role

Lemma is production monitoring for AI agents. We catch the silent failures your observability tools and evals miss (think bad tool calls, lost context, and infinite loops) before your users find them. The hardest part of our product is deciding what counts as a failure. Found on 1752vc Careers, the job board for startup and VC roles.

## What they're looking for

- High slope over years of experience. New grads and dropouts welcome
- A track record of shipping things people actually use
- Hands-on with LLMs in production: evals, LLM-as-judge, embeddings, and knowing when a smaller model or no model is the right call
- Real research taste. You can tell a real improvement from noise, even when there's no ground truth to check against
- Bonus: you were the customer once. You ran agents in production and got burned

Tags: Engineering

Source: 1752vc Careers, https://www.1752.vc/careers/jobs/lemma-ai-ml-engineer/