Senior Harness Engineer
Core
Design, build, and support core components of the harness (guides, feedback loops, guardrails) to steer AI coding agents toward correct, maintainable output and enforce quality by the system.
Role type
Senior IC harness engineer (AI agent verification & tooling)
Builds
Production-grade engineering environments, agent instruction files, custom linters, static analysis tools, and quality gating systems for AI-generated code.
Domain
AI engineering / Software development lifecycle / Agent orchestration
Deliverable
production ML models
Required skills
Software architecture, AI coding agents, engineering tooling, CI/CD pipelines, spec-driven development, consumer/contract testing, security guardrails for autonomous agents, observability, quality gating processes.
Preferred skills
Experience with AGENTS.md conventions, fitness functions, LLM-as-judge reviewers, drift detection, mentorship.
Technologies
LLMs (Claude Code, Codex), Pact, CI/CD, containerized environments, static analysis tools, custom linters.
Responsibilities
Design and deploy harness components (guides, sensors, guardrails); own quality gating and release criteria for agent-produced work; establish LLM testing infrastructure; run the steering loop to prevent agent mistakes; improve observability of agent work; mentor engineers on harness practices.
Seniority
Senior, hands-on IC
