# AI Engineer, Post-Training & Evaluation at Coval

- Company: Coval (YC S24)
- What the company does: Simulation & Evaluation that scales voice and chat AI agents. Backed by Norwest and Y Combinator.
- Company website: https://www.coval.dev/
- Type: Startups (AI role)
- Level: Mid level
- Location: San Francisco, CA, US
- Work setup: On-site
- Pay: $150K to $300K base salary per year (USD)
- Posted: 2026-10-27
- Apply by: 2026-12-11
- Apply: https://www.ycombinator.com/companies/coval/jobs/tiuVtdx-ai-engineer-post-training-evaluation?utm_source=1752vc&utm_medium=careers
- Page: https://www.1752.vc/careers/jobs/coval-ai-engineer-post-training-and-evaluation/

## About the role

Own the models behind Coval’s judges. Coval is the evaluation platform for conversational AI: we help enterprise teams simulate, monitor and improve voice and chat agents before those agents ever reach a customer. Because our product is the judge, this role sits at the center of the company. Found on 1752vc Careers, the job board for startup and VC roles.

## What they're looking for

- 4+ years as an engineer, with strong systems instincts
- A track record of shipping measurable quality gains by pairing rigorous measurement with targeted training, not vibes and prompt tweaks
- You’ve built eval infrastructure you actually trust
- You’ve run LoRA/SFT experiments end to end, including preparing your own data rather than relying on clean data from other teams, so you know which lever really wins
- High agency: on a small Series A team, nobody hands you tickets. You figure out what matters next and drive it there
- Ambitious and kind. You’ll be part of the group that founds our engineering org, sets its bar and grows the team

Tags: Engineering

Source: 1752vc Careers, https://www.1752.vc/careers/jobs/coval-ai-engineer-post-training-and-evaluation/