Jonathan Chavez
| Jonathan Chávez | |
| Occupation | Co-founder and CEO of ZeroEval |
|---|---|
| Known for | ZeroEval, an auto-optimization platform for AI agents |
Jonathan Chávez is a software engineer and entrepreneur who is the co-founder and CEO of ZeroEval, a company that develops tools to evaluate and automatically optimize artificial intelligence agents. ZeroEval is backed by Y Combinator as part of its Summer 2025 batch.[1]
Career
Prior to founding ZeroEval, Chávez accumulated experience across large technology companies and early-stage startups. He worked on Video AI at Google and was a member of the LLM Observability team at Datadog, where he contributed to engineering and data science tools used by enterprise customers. He was also the first employee at Atrato, a financial technology company, where he helped launch its inaugural loan product. Earlier in his career, Chávez conducted research in reinforcement learning and machine learning applied to particle physics.[2]
Chávez co-founded ZeroEval to address what he identified as a gap in the AI tooling landscape: the absence of a feedback loop that allows deployed AI agents to improve over time based on real-world usage. The platform enables teams to set up human feedback and AI-based judges to gather evaluations from production interactions, which are then used to automatically optimize agent configurations such as prompts and model selection. According to the company, this process can yield improvements in accuracy using calibrated large language model judges and accelerated optimization cycles.[3]
ZeroEval's product integrates with coding agents including Cursor, Claude Code, and Codex, and can be instrumented with a lightweight SDK. The platform traces agent runs, collects feedback, and applies optimization automatically. The company reports that its tools are used by teams from organizations including DoorDash, Datadog, Hugging Face, and Harvard Medical School.[4]
Chávez is a member of Forbes Councils, where he is listed as a co-founder of ZeroEval with areas of expertise in artificial intelligence, machine learning, and startup founding.[5]
References
- ↑ "ZeroEval". 'ZeroEval}'. Retrieved 2026-03-19.
- ↑ "Jonathan Chávez – Forbes Councils". 'Forbes}'. Retrieved 2026-03-19.
- ↑ "ZeroEval". 'ZeroEval}'. Retrieved 2026-03-19.
- ↑ "ZeroEval". 'ZeroEval}'. Retrieved 2026-03-19.
- ↑ "Jonathan Chávez – Forbes Councils". 'Forbes}'. Retrieved 2026-03-19.