---
title: "Software Engineer"
company: "idler"
company_url: "https://www.remjobs.works/companies/idler"
url: "https://www.remjobs.works/job/idler-software-engineer-c90347e1-8b9c-4b62-82c8-95d11bce9155"
apply_url: "https://jobs.ashbyhq.com/idler/cce9ab39-0ab0-489d-bbf9-4df74c2baeee"
workplace: onsite
location: "San Francisco"
employment_type: full-time
seniority: mid
role: software-engineering
region: united-states
skills: ["nodejs", "postgres", "react", "redis", "typescript"]
date_posted: 2025-10-14T20:39:45.676Z
first_seen_by_remjobs: 2026-08-27T09:27:56.322Z
---

# Software Engineer

**idler** — San Francisco

Apply: https://jobs.ashbyhq.com/idler/cce9ab39-0ab0-489d-bbf9-4df74c2baeee

## About idler

idler is a frontier data research lab. We build the evals and environments that the world's leading frontier labs use to measure and train their models.

## About the role

**About idler**

idler is a frontier data research lab. We build the evals and environments that the world's leading frontier labs use to measure and train their models.

We closed on a multimillion-dollar contract with a top lab and raised a $9m seed round led by Paradigm. We are now facing more lab demand for our data than we can currently serve.

Teaching AI superhuman capabilities is a responsibility we take very seriously. Our training data comes from work that is rigorous, ethically produced, and grounded in real expertise.

**About the role**

As a Software Engineer at idler, you’ll build the systems and infrastructure that our entire company relies on. You will solve open-ended, technical challenges with focus on performance, scale, and simplicity. In the era of AI-coding, systems-level thinking and attention to detail is more important than experience with a particular framework or language

**Examples of what you'll do**

- Design and build scaleable systems that generate RL environments

- Create agentic QA systems to validate environment quality and fairness

- Work directly with AI researchers at leading labs to understand what makes training data effective

- Handle petabyte scale ETL and orchestrate millions of concurrent jobs

- Support new product lines as we expand beyond coding environments

- Manage our security posture and compliance requirements**What we’re looking for**

- 1-10 years of experience writing excellent production software (new grads OK)

- Experience with full-stack applications in a popular programming language

- A meticulous problem solver who creates robust systems under time pressure**Tech stack**

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

**Details**

- In-person in San Francisco

- Competitive salary + meaningful equity

- Free meals in office

- Healthcare, 401(k), 15 days of PTO per year

- Relocation assistance

- Small, ambitious teamThis is an in-person role in San Francisco. We're a tight-knit founding team and we play to win. Join us if you like to win too.

---

Source: idler's own career page, read by RemJobs. Canonical HTML version: https://www.remjobs.works/job/idler-software-engineer-c90347e1-8b9c-4b62-82c8-95d11bce9155