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AI Harness Engineer

Belgium🌐 Remote💼 Full-time🗓 2026-09-28 → 2026-10-01

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 model types and sizes

Domain

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

Deliverable

production ML models

Required skills

JavaScript, TypeScript, AI agent harnesses, tool calling, context management, npm modules, distributed systems, resilience engineering

Preferred skills

Open-source contributions, experimental mindset

Technologies

JavaScript, TypeScript, npm

Responsibilities

Build and deliver new features and bug fixes with a 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 agent loops; Develop evaluation frameworks and testing infrastructure for non-deterministic AI systems; Implement and evolve peer-to-peer technology for local AI; Design resilient systems handling network failures and model errors.

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