Design Engineer

Posted 6 Hours Ago
Be an Early Applicant
San Francisco, CA, USA
In-Office
Junior
Artificial Intelligence
Scale AI for reinforcement learning environments
The Role
Own the user experience for customer and internal applications, creating intuitive interfaces for inspecting and interacting with reinforcement learning environments. Build reusable UI, layout, UX, and marketing design systems; develop performant full-stack applications; and instrument and visualize environment tracking across many steps and iterations. The role requires strong product thinking, design taste, engineering precision, user testing, and rapid iteration.
Summary Generated by Built In

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 Design Engineer at idler, you'll own the user experience for our customers and internal team. You'll be tasked with producing robust, performant applications that are a delight to view and use. Our RL environments are novel, complex artifacts that need to be easy to interact with and communicated well. You'll need a founder’s high-level thinking, a designer's taste, and an engineer's precision to succeed.

Examples of what you’ll do

  • Create a unified UI, layout and UX paradigm for inspecting and interacting with our RL environments that serves frontier labs and our internal team

  • Build a standard library and templates for our marketing materials that are beautiful and compliant with design best practices

  • Instrument and visualize our environment tracking system across hundreds of discrete steps and iterations per artifact

What we’re looking for

  • Designed and implemented of a successful, full-stack product

  • A portfolio showing your design work

  • Watched users interact with your software and quickly iterated until they loved it

  • Strong experience with a modern web app stack (React, Typescript, Node.js)

  • 2+ years of product experience

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 team

This 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.

Skills Required

  • Experience designing and implementing a successful full-stack product
  • Portfolio demonstrating design work
  • Experience observing users interact with software and iterating based on feedback
  • Strong experience with React, TypeScript, and Node.js
  • 2+ years of product experience
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The Company
HQ: San Francisco, California
6 Employees
Year Founded: 2025

What We Do

Idler builds reinforcement learning environments that teach AI models to code at expert human levels. We create training environments based on real-world coding scenarios that prepare models for the complex challenges they'll face in production.

Why Work With Us

You'll be joining a team that's expanding quickly, get direct access to AI researchers at frontier labs, and be put in a position to grow as fast as you can handle.

Gallery

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Idler Offices

OnSite Workspace

All employees work in person out of our office in the Dogpatch neighborhood of San Francisco.

Typical time on-site: None
HQSan Francisco, California
Dogpatch

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