Frontend Engineer

Job Description

Build performant, scalable, and intuitive user interfaces for SwapRail across web and mobile platforms, covering trading flows, wallet interactions, and real-time data visualization.

1. 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.

2. 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.

3. 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.

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