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AI Harness Engineer

Netherlands🌐 Remote💼 Full-time🗓 2026-09-28 → 2026-09-29

Core

Build systems and integrations connecting people with local AI capabilities, focusing on agent infrastructure and peer-to-peer technology.

Role type

Senior IC AI Harness Engineer

Builds

Reusable tools, modules, and integrations for diverse AI models and sizes

Domain

AI tooling, agent infrastructure, peer-to-peer technology

Deliverable

production ML models

Required skills

JavaScript, TypeScript, AI agent harness design, evaluation frameworks, npm module management, distributed systems, resilience engineering

Preferred skills

Open-source contributions, experimental mindset, rapid technical exploration

Technologies

JavaScript, TypeScript, npm

Responsibilities

Build and deliver new features and bug fixes with focus on reliability and performance; Design and develop reusable tools and integrations for AI capabilities; Build and maintain AI agent harnesses including tool calling and context management; Develop evaluation frameworks for non-deterministic AI systems; Implement peer-to-peer technology for local AI; Maintain high-quality codebase through reviews and automated testing; Design resilient systems handling network failures and timeouts; Experiment with new technologies to expand AI capabilities.

Seniority

Senior, hands-on IC

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