Software Engineer

San Franciscofull-timemid

Software EngineerSoftware Engineering

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Quick Summary

Overview

What we do Idler builds reinforcement learning environments that teach AI models to code like 0.01% engineers. Our training environments are based on real-world coding scenarios that frontier models will actually encounter.

Key Responsibilities

Build features and tooling for our agentic systems that create and QA coding environments. You'll work alongside senior engineers and the founding team, learning how to design systems that are both technically sound and philosophically robust.

Technical Tools

postgresqlreactredistypescriptvercel

Idler builds reinforcement learning environments that teach AI models to code like 0.01% engineers. Our training environments are based on real-world coding scenarios that frontier models will actually encounter.

We've closed a multimillion-dollar contract with a leading foundation lab (the largest they've issued to date). Demand is outpacing our capacity to deliver, so we're scaling the team fast.

Responsibilities

~1 min read

Concretely, you'll:

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Build UI components and backend services for environment generation and validation
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Implement automated testing and QA workflows
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Work with real codebases to understand what makes effective training data
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Ship features quickly and iterate based on feedback from AI researchers at leading labs

The founding team, a founding engineer, and a small group of engineers (we're hiring quickly). You'll learn directly from people building at the cutting edge of AI training.

Typescript, React, NodeJS, Postgres, Redis, Vercel, Cursor