# Design Engineer

**Company:** [Idler](https://hotfix.jobs/companies/idler)
**Location:** San Francisco, CA
**Role:** Fullstack Engineering
**Experience:** 2+ years
**Skills:** React, TypeScript, Node.js, Postgres, Redis, Vercel, Cursor, Full-Stack Development
**Posted:** 2026-08-26

> Design Engineer responsible for shaping the user experience and building performant full-stack applications for complex reinforcement-learning environments. The role requires product experience, strong React/TypeScript/Node.js skills, design judgment, and rapid user-driven iteration.

## Job Description

## Responsibilities
- Create a unified UI, layout, and UX paradigm for inspecting and interacting with reinforcement-learning environments used by frontier labs and internal teams.
- Build a standard library and templates for marketing materials that follow design best practices.
- Instrument and visualize the environment tracking system across hundreds of discrete steps and iterations per artifact.
- Design and implement robust, performant applications with high-quality user experiences.
- Observe users interacting with software and iterate rapidly based on their feedback.

## Requirements
- Experience designing and implementing a successful full-stack product.
- Portfolio demonstrating design work.
- Strong experience with modern web application technologies, including React, TypeScript, and Node.js.
- At least 2 years of product experience.

## Tech Stack
- TypeScript
- React
- Node.js
- PostgreSQL
- Redis
- Vercel
- Cursor

## Compensation and Benefits
- Competitive salary and meaningful equity.
- Free meals in the office.
- Healthcare.
- 401(k).
- 15 days of paid time off per year.
- Relocation assistance.

## Similar jobs

- [Software Engineer](https://hotfix.jobs/jobs/24fabc2d-d56b-45b4-b70b-76fb729553ec) - Greenboard - New York, NY - $130k – $150k/yr
- [Full-Stack Engineering Intern](https://hotfix.jobs/jobs/0fcea793-b796-40bf-ab13-5939eef1eb97) - Immuta - Columbus, OH - $52k – $62k/yr
- [Software Engineer - Early Careers](https://hotfix.jobs/jobs/bca6c6ab-3503-4f96-8f26-64fe3de60649) - Instabase - San Francisco, CA
- [Software Engineer, Intern](https://hotfix.jobs/jobs/3c6218b5-1029-45c3-9885-606263c76b08) - Domino - Remote - $50 – $55/hr
- [Product Engineering Intern](https://hotfix.jobs/jobs/ef69cc21-949a-4f5b-b6ab-affdbedbe062) - Immuta - College Park, MD - $52k – $62k/yr

**Apply:** https://hotfix.jobs/jobs/5a626fda-be14-4f80-8330-68eaaba6bf53
**Canonical:** https://hotfix.jobs/jobs/5a626fda-be14-4f80-8330-68eaaba6bf53