Senior Frontend Engineer (React / TypeScript)

You will own the frontend of one of two products: Strium, a fully on-chain exchange where you design and build trading UIs with order books, charts, order and position management over real-time data; or the Startale App, a digital asset super app where you build wallet experiences, real-time data screens, and dApp integrations. You will lead the evolution of frontend system design, patterns, and best practices, write production-quality code in TypeScript and React, maintain and expand a Playwright-based E2E test suite, and collaborate with Product, Design, and Backend in squad-level decision making. No blockchain experience is required — you can catch up on on-chain knowledge after joining.

Responsibilities

• Lead the evolution of frontend system design, patterns, and best practices
• Design and implement trading UIs including order books, charts, orders, and position management (Strium)
• Own frontend workstreams from design through implementation and release, including wallet experiences, real-time data screens, and dApp integrations (Startale App)
• Implement production-quality code in TypeScript and React
• Maintain and expand the Playwright-based E2E test suite
• Collaborate with Product, Design, and Backend and participate in squad decision making

Requirements

• 3+ years of professional work experience and advanced English proficiency (English is the company language), plus at least 3 of the following
• 4+ years of hands-on experience as a frontend engineer
• Deep proficiency in TypeScript and modern JavaScript
• Experience with TanStack Start or an equivalent framework such as Next.js or Remix
• Solid knowledge of React patterns, performance optimization, and application design
• Ability to work autonomously, resolving ambiguity in a fast-moving environment
• Conversational or better English skills
• Willingness and curiosity to quickly learn unknown domains (blockchain experience not required)

Benefits

• Stock option plan
• Hybrid work with conditional full remote option
• Annual company workation and occasional offsite work
• Investment in AI tools and development environment
• Discretionary vacation system with flexible timing and number of days