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AI Harness Engineer

Portugal🌐 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 AI agents and P2P technology

Domain

AI infrastructure, peer-to-peer networking, distributed systems

Deliverable

production ML models

Required skills

JavaScript, TypeScript, AI agent harness design, tool calling, context management, npm module development, distributed systems, resilience engineering, testing infrastructure

Preferred skills

Open-source contributions to P2P or AI tooling, experimentation with emerging technologies

Technologies

JavaScript, TypeScript, npm

Responsibilities

Build and maintain AI agent harnesses including tool calling and agent loops; Develop evaluation frameworks for non-deterministic AI systems; Implement peer-to-peer technology for local AI; Design resilient systems handling network failures and timeouts; Create reusable software components and modules; Collaborate in a globally distributed remote environment

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