Build performant, scalable, and intuitive user interfaces for SwapRail across web and mobile platforms, covering trading flows, wallet interactions, and real-time data visualization. Location: Remote / Work from Home Type: Part-time preferred / Full-time available Responsibilities - Develop and maintain core product interfaces using React and React Native - Implement complex trading flows, including quoting, routing visualization, and execution states - Integrate wallet connectivity and blockchain data into UI layers - Build real-time data-driven interfaces (prices, balances, transaction states) - Design and implement reusable UI components and design systems - Optimize rendering performance, especially under high-frequency data updates - Handle edge cases such as pending transactions, failed states, and network inconsistencies - Collaborate closely with backend and wallet engineers to align on data contracts and UX behavior Requirements - Strong experience with React and TypeScript - Experience with Next.js and modern frontend architecture - Experience building mobile apps using React Native - Strong understanding of state management (React Query, Zustand, Redux, etc.) - Experience handling asynchronous data and real-time updates - Familiarity with TailwindCSS or similar styling systems Nice to Have - Experience building DeFi or trading interfaces - Familiarity with Web3 frontend libraries (wagmi, viem, ethers) - Experience with charting and data visualization (TradingView, D3, Recharts) - Understanding of UX patterns for financial/trading products - Experience building cross-platform design systems