# Founding Agent Harness Engineer at Model AI

- Company: Model AI
- What the company does: ModelOp's Enterprise AI Command Center is the system of record that unifies every AI asset so you bring ML, GenAI, and agentic AI to production 10× faster. Backed by a16z.
- Company website: https://www.modelop.com
- Type: Startups (AI role)
- Level: Mid level
- Location: Palo Alto
- Work setup: On-site
- Posted: 2026-06-16
- Apply by: 2026-10-08
- Apply: https://jobs.ashbyhq.com/modelai/ed4eda41-97a6-44ba-b134-75689109701d
- Page: https://www.1752.vc/careers/jobs/model-ai-founding-agent-harness-engineer/

## About the role

We are looking for a Founding Agent Systems Engineer to build the agent harnesses, evaluation systems, workflows, and feedback loops behind our product. This role is ideal for someone who is strong in Python and systems engineering, understands LLM agents and evaluation, and enjoys turning research ideas into working products. You will work on the systems that allow agents to collaborate, inspect code, make changes, run tests, measure progress, and improve over time.

## What they're looking for

- Strong Python engineering skills
- Experience building LLM agents, evaluation harnesses, developer tools, applied AI systems, or automation workflows
- Strong systems instincts and the ability to build reliable, debuggable tooling
- Experience with testing, benchmarking, CI, code analysis, or automated software workflows
- Ability to reason about agent behavior, failure modes, evaluation quality, and product usefulness
- Comfort working across agent logic, backend systems, infrastructure, and user-facing product requirements

Tags: Technical Staff