Mts Agent Harness Jobs

…who can dig into our agent harness, run experiments, and make it better.

…the nervous system of an agentic product. This is a high-ownership role on a small team.

…Aside is a personal work agent built as a browser.

About the Role The agent harness is Sim.

Its browser agent scores 99.0% on Mind2Web, 40% smarter than Claude Cowork with Opus 4.7.

…on every layer of the agentic system that powers Atlas - from harness design to context engineering and agent

…Member of Technical Staff - Agent Engineer at Phylo: Advance the agent harness by bringing the latest

…craft at its core, building harnesses, agents, and workflows that don't just close deals but become the foundation for product capabilities

…RL environments to teach long-horizon agents

…to own our AI coding agent

…Even better: You've worked on agent harnesses, orchestration layers, or execution frameworks

Own the layer that makes agents trustworthy — eval harnesses, guardrails, audit trails, human-in-the-loop review.