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Director - Harness Engineering

Work from Home, United Kingdom🌐 Remote💼 Full-time🗓 2026-08-10 → 2026-09-25

Core

Design and build the 'harness' environment that steers AI coding agents toward correct, maintainable, well-architected output, enforcing quality by system rather than human audit.

Role type

Director, hands-on IC leading a regional team of harness engineers

Builds

Feedforward guides (agent instructions, skills, architectural rules), feedback sensors (custom linters, verification loops, LLM-as-judge reviewers), and AI governance controls

Domain

AI-assisted software engineering / Agent orchestration / Engineering tooling

Deliverable

production ML models | product features | infrastructure

Required skills

Software architecture, AI coding agents (Claude Code, Codex), engineering tooling (linters, CI/CD, observability), spec-driven development, AI governance, distributed team management, security guardrails for autonomous agents

Preferred skills

Experience with AGENTS.md conventions, fitness functions, deterministic vs inferential controls, cost/speed/reliability trade-offs in agent checks

Technologies

LLMs (Claude, Codex), CI/CD pipelines, containerized environments, custom linters, LLM-as-judge frameworks

Responsibilities

Design and evolve harness components (guides, guardrails, context); build feedback sensors and verification loops; define AI governance boundaries and testing infrastructure; establish cross-organizational QA standards; manage and coach a geographically distributed team; define observability metrics for agent work

Seniority

Director, hands-on IC with team leadership

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