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Frontend Engineer (React.js / Next.js)

Sundayy

full-remoteleadpermanentfrontend United States Yesterday via LinkedIn
200,000 - 300,000 USD/annual

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Tags

ReactNext.jsTypeScriptWebSocketsReal-time DataFront-End PerformanceTrading PlatformsCrypto TradingDeFiMobile Optimization

About the role

Role Overview

Senior/Staff Front-End Engineer to help build a new high-performance, web-based trading terminal. You will translate complex trading functionality into a seamless, fast, user-centric React/Next.js application with real-time capabilities.

Responsibilities

  • Develop and maintain a responsive, user-centric web application using React/Next.js and TypeScript
  • Implement performance and usability best practices, with strong attention to mobile optimization
  • Integrate and manage real-time data streams using WebSockets to support trading features
  • Collaborate with back-end/full-stack engineers to ensure smooth front-end/back-end integration
  • Solve complex technical problems and propose effective, innovative improvements to user experience
  • Maintain high code quality with clean, maintainable, well-documented code
  • Contribute to technical decision-making (stack and design choices)

Requirements

  • 5+ years of front-end development experience
  • Strong focus on React/Next.js and TypeScript
  • Proven experience building frontend components for trading platforms/exchanges
  • Experience acting as a key decision-maker for front-end architecture/components
  • Ability to work independently and proactively manage tasks and projects
  • Expertise building fast, dynamic, optimized web interfaces
  • Comfort handling real-time data and WebSocket management
  • Strong problem-solving skills
  • Genuine interest in cryptocurrency, DeFi, and trading trends

Nice to Have

  • Experience influencing or leading major front-end platform components (e.g., terminal/critical UX flows)

Benefits

  • Competitive base salary: $200,000–$300,000
  • Performance-based bonuses
  • Remote working flexibility with a flexible schedule
  • Collaborative/inclusive environment and access to cutting-edge trading technology

About Sundayy

Sundayy is hiring for a client in the cryptocurrency trading technology sector. The client operates a high-performance trading platform that supports advanced on-chain trading features such as DCA, limit orders, sniping, and wallet copy-trading, serving tens of thousands of active users and handling massive daily trading volume.

Scraped 6/18/2026

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