Senior Frontend Engineer

Role overview

Senior Frontend Engineer contributing to Startale’s frontend product experience across wallet UX, account abstraction user flows, and a growing set of web and mobile dApps. You’ll help shape frontend architecture, deliver complex user-facing features, and bake in performance, reliability, and usability best practices.

Responsibilities

• Frontend architecture & technical contributions: Evolve frontend system design, patterns, and best practices.
• Application development: Design, build, and maintain production-grade frontend applications using TypeScript and TanStack Start.
• State management & data orchestration:
  • Implement and maintain scalable client-side state with Zustand.
  • Use TanStack Query for predictable, performant data flows.
• Project ownership (end-to-end frontend workstreams), including:
  • Core wallet & account abstraction UX flows
  • High-throughput, data-rich product interfaces
  • New web and mobile dApp surfaces
• Testing & reliability: Maintain and extend Playwright end-to-end test suites to improve coverage and release confidence.
• Cross-functional collaboration: Work with Product, Design, and Backend teams to refine requirements and deliver high-quality outcomes.

Requirements

• 2–4 years of experience as a frontend engineer.
• Strong proficiency in TypeScript and modern JavaScript.
• Experience with TanStack Start or comparable meta-frameworks (e.g., Next.js, Remix).
• Solid expertise in modern React patterns, performance optimization, and frontend application design.
• Ability to operate independently in ambiguous, fast-paced environments.
• Excellent written and verbal communication.

Nice-to-haves

• Experience with AI-assisted coding tools (Cursor, Copilot, Claude, or similar).
• Background in web3, blockchain, or decentralized application development.
• Experience in startup/scale-up environments.