# Design Engineer (Senior / Staff / Principal) at Gym Class

- Company: Gym Class (YC W22)
- What the company does: Connecting the world by simulating it. Backed by a16z and Y Combinator.
- Company website: https://gymclass.com
- Type: Startups (AI role)
- Level: Principal and up
- Location: US / CA / MX / Remote (US; CA; MX)
- Work setup: Remote
- Pay: $170K to $240K base salary per year (USD)
- Posted: 2025-09-05
- Apply by: 2026-10-08
- Apply: https://www.ycombinator.com/companies/gym-class/jobs/ywXHGBv-design-engineer-senior-staff-principal
- Page: https://www.1752.vc/careers/jobs/gym-class-design-engineer-senior-staff-principal/

## About the role

Own 0→1 → production: Take ambiguous ideas + player feedback and ship polished experiences — sketch → Figma → production React. Build growth-critical surfaces: Onboarding, identity/profiles, discovery, social loops (invites/sharing), chat, spectating, and UX to drive feedback loops for our AI systems across mobile web + in-VR web .

## What they're looking for

- A true designer-who-codes: 3–6+ years building consumer web products, with a portfolio showing you owned both design + implementation
- Consumer-social native: You’ve shipped mainstream UX and you intuit what makes products feel effortless, sticky, and shareable. Built/optimized viral loops (invites/referrals, sharing, UGC, social graphs, discovery/feed surfaces)
- Front-end excellent: Strong in React + TypeScript , modern HTML/CSS (responsive, animation, accessibility). You sweat the details: spacing, typography, motion, micro-interactions
- Performance + quality minded: Comfortable with profiling, code-splitting, asset strategy, caching/CDN, and keeping bundles lean
- High-agency: You don’t wait for perfect specs - you define the problem, propose the solution, and ship
- Startup builder: You thrive in ambiguity, move fast, and raise the bar as you go. Ex-founders VERY much welcome

Tags: Design