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Frontend Engineer; React, Typescript
Job in
San Francisco, San Francisco County, California, 94199, USA
Listed on 2026-01-01
Listing for:
Weaver
Part Time
position Listed on 2026-01-01
Job specializations:
-
Software Development
React.js, Front End Developer
Job Description & How to Apply Below
Stealth AI startup / Crafting the future of UX design to give designers superpowers
We are on a mission to reinvent how designers work in the AI era. Backed by top investors from OpenAI, Google, and Dropbox, we’re building the next‑generation AI design tool for product teams.
We’re looking for a Staff Frontend Engineer (8+ years experience) who thrives on solving complex problems and will not wait for someone else to tell what to do. You’ll work directly with the founding team to architect core systems, build complex infrastructure, and shape the future of how software gets designed.
Must‑Have Requirements
• 8+ years of experience as a frontend engineer in a product‑focused tech company.
• Strong expertise in React and Type Script for the front end.
• Atomic state management (Recoil, Zustand, Jotai, or Redux with middleware).
• Real‑time collaboration tools (Yjs, CRDTs, Web Socket/Socket.io).
• Performance optimization (virtualization with React‑Virtualized/Tan Stack Virtual, Web Assembly integration).
• Back‑end exposure:
Basic integration, REST/Graph
QL.
Nice‑to‑Have Skills
• SVG/canless rendering libraries (React‑Konva, React‑Flow, React Three or D3.js).
• Dev Ops (Docker, CI/CD).
• Experience with Figma‑like apps, design tools, or collaborative editors.
• Knowledge of WebRTC for peer‑to‑peer communication.
• Contributions to open‑source React libraries.
Key Responsibilities
• Design, develop, and maintain scalable front‑end and back‑end systems.
• Work closely with designers to translate UI/UX designs into high‑quality, production‑ready code.
• Optimize performance and scalability for real‑time collaborative features.
• Contribute to the architecture and engineering culture of Weaver.
• Build and maintain integrations with design tools and developer environments.
Benefits
• Base salary:
Above the market salary
• Equity:
Meaningful stock options
• Work:
Hybrid (3 days a week in‑person)
San Francisco, CA
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