Frontend Developer

Responsibilities

• Develop and maintain the exchange's core trading system, futures trading modules, asset center, and K-line market data modules
• Engineer high-performance trading modules, complex data visualizations, and real-time streaming interfaces
• Collaborate with product, design, backend, and testing teams to implement complex trading scenarios
• Participate in frontend technology selection, architectural design, and code standard formulation
• Optimize real-time data push, WebSocket implementation, and high-concurrency SSR scenarios
• Drive performance optimization through bundle analysis, code splitting, and advanced rendering techniques

Requirements

• 3+ years of frontend development experience with a focus on large-scale, complex web applications
• Proficiency in TypeScript and React 18+ (including Hooks and Concurrent features)
• Mastery of Node.js with the ability to debug full-stack code
• Deep understanding of the WebSocket protocol and experience with high-frequency real-time data
• Practical experience with SSR and Next.js, including hydration and streaming
• Skilled in using TradingView Lightweight Charts or custom K-line components
• Experience with performance optimization (Web Workers, Canvas rendering, Virtual Lists)
• Familiarity with unit and E2E testing frameworks such as Jest or Playwright

Preferred Qualifications

• Deep understanding of cryptocurrency exchange business (Spot, Margin, Perpetual Futures, Options)
• Development experience with futures logic, including liquidation and funding rates
• Familiarity with trading components like Orderbooks, Depth Charts, and Time & Sales
• Ability to use English as a working language for international team collaboration
• Prior experience at leading global cryptocurrency exchanges

About the Company

OneBullEx is a crypto futures exchange startup designed for speed, reliability, and innovation. Our platform offers advanced futures trading capabilities, including AI-powered 300 SPARTANS trading bots for automated, high-precision strategies. We combine a user-focused interface with transparent risk management, empowering traders to navigate the fast-moving digital asset markets with confidence.