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Frontend Engineer (React & TypeScript)

Sundayy

full-remoteseniorpermanentfrontendengineering-management United States Today via LinkedIn

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Tags

ReactTypeScriptFrontend ArchitectureDesign SystemPerformance OptimizationState ManagementData FetchingCachingOpen SourceCrypto Wallet

About the role

Role Overview

You’ll join Phantom’s engineering team to build and maintain shared frontend libraries for the Phantom Crypto Wallet. The role focuses on improving frontend architecture and ensuring a cohesive user experience as the wallet scales to support multiple chains.

Responsibilities

  • Build, own, and promote shared frontend libraries and reusable components to accelerate development and keep UX consistent across teams.
  • Improve frontend performance by reducing bundle sizes and optimizing rendering efficiency.
  • Maintain, enhance, and evangelize the design system (robust, well-documented, and integrated into frontend workflows).
  • Collaborate with cross-functional teams on scalable, maintainable frontend architecture.
  • Champion frontend standards through mentorship and continuous improvement.
  • Stay current with emerging frontend technologies and industry trends to introduce innovative solutions.

Requirements

  • 5+ years of full-time software engineering experience with a strong focus on frontend development.
  • Proficiency in React and TypeScript, including component architecture, state management, and performance optimization.
  • Experience with data fetching, caching, and effective application state management.
  • Demonstrated interest in open-source and community-driven platforms.
  • Strong communication skills and proficiency in English.

Nice to Haves

  • Open-source/community involvement (explicitly encouraged).

Benefits (Highlights)

  • Competitive salary and equity.
  • Fully covered health insurance (medical, dental, vision).
  • Remote work setup stipend (laptop, headphones, equipment).
  • Flexible working hours, supportive remote environment.
  • Unlimited vacation policy, 401(k), and wellness benefits.
  • Daily lunch allowance for remote employees.

About Sundayy

Phantom is an innovator in digital finance, providing a modern, user-friendly crypto wallet used by millions globally. The platform unifies financial management, spending, and investment into a fast, secure, self-custodial experience supporting multiple blockchains including Solana, Bitcoin, Ethereum, and Polygon. Its focus on security, usability, and speed has driven rapid growth and mainstream adoption of crypto-powered finance.

Scraped 7/27/2026