Frontend Developer (React.js)

About the Role

Aurelexa is hiring a Frontend Developer to build the core token ecosystem powering our platform. You will work on a production-grade system that combines ERC-20 token infrastructure, a high-performance backend, real-time market data, and a trading-focused application layer.

Responsibilities

• Build and maintain responsive trading UI components using React 18 and TypeScript across Swap, Limit, Buy, Sell, Trade, and Markets pages.

• Integrate real-time WebSocket data into live UI updates — order books, price tickers, trade feeds, and candlestick charts.

• Implement transaction signing and submission for swap, mint, and order flows via Viem, replacing paper trading placeholders with real on-chain execution.

• Own the wallet connection experience across 8+ providers using EIP-6963, and collaborate with the smart contract developer on ABI integration and on-chain event handling.

• Connect frontend to backend REST APIs for market data, order management, and swap quotes, ensuring consistent data contracts across the stack.

• Write clean, well-typed TypeScript with a focus on component reusability, performance, and maintainability.

Requirements

• 3+ years of professional frontend development experience with React and TypeScript in a production environment.

• Strong proficiency in React 18 — hooks, context, component architecture, and performance optimization.

• Solid experience consuming REST APIs and WebSocket streams for real-time data rendering.

• Hands-on experience with Tailwind CSS and responsive, accessible UI design.

• Familiarity with Web3 frontend integration — wallet connection, transaction signing, and contract interaction via Viem or Ethers.js.

• Experience with charting libraries such as lightweight-charts, klinecharts, or TradingView.

• Comfortable working in a monorepo structure and collaborating across frontend, backend, and smart contract teams.

Tech Stack

• Frontend: React 18 + TypeScript — trading UI, component architecture, real-time data handling.

• Styling: Tailwind CSS + PostCSS — utility-first responsive design, custom animations.

• Routing: React Router v6 — client-side navigation across trading pages.

• Real-Time Systems: WebSocket client — live market prices, order book updates, trade feed streaming.

• Charting: lightweight-charts + klinecharts — candlestick charts, real-time price rendering.

• State Management: React Context — Config, Wallet, Markets, Favorites, PaperTrade providers.

• Optional Integrations: RainbowKit — wallet connection UI, swap quote fetching via backend API.

Nice to Have

• Experience with RainbowKit or similar wallet connection UI libraries.

• Familiarity with Viem or Ethers.js for on-chain contract interaction and transaction handling.

• Prior work on a DEX, trading platform, or any DeFi-related frontend.

• Understanding of ERC-20 token standards and how they surface in UI flows (balances, approvals, transfers).

• Experience integrating TradingView, lightweight-charts, or klinecharts for financial data visualization.

• Familiarity with WebSocket-driven architectures and managing live data state efficiently.

• Experience working in an npm workspaces monorepo alongside backend and smart contract teams.

• Comfort with Hardhat local network for testing frontend-to-contract integration end to end.

• Eye for financial UI/UX — order books, depth charts, trade history tables, and position panels.

Why Join Us

• Own the frontend end to end — from chart interactions and order entry to wallet flows and on-chain transaction submission, your work directly shapes what users see and experience.

• Build at the intersection of finance and Web3 — real-time markets, DEX swaps, limit orders, and on-chain token mechanics all in one product.

• Collaborate closely with smart contract and backend developers in a small, focused team where your input influences architecture and product decisions.

• Greenfield features ahead — swap execution, fiat on/off-ramps, margin trading UI, and perpetuals are all on the roadmap, giving you room to grow and lead.

• Remote-first, async-friendly culture with the flexibility to do your best work on your own schedule.

• Early-stage opportunity to join before scale — your contributions will be visible, credited, and lasting.

Contract & Payment Terms

• You will be engaged as an independent contractor.

• This is a fully remote role with flexible working hours, with some overlap expected during core collaboration time (10 AM – 4 PM EST).

• Competitive hourly compensation ($30–$50/hour), flexible based on experience and expertise.

• Opportunity for performance-based increases and long-term collaboration.

• Payments are made weekly via ACH, PayPal, or Wise based on services rendered.

About Aurelexa

Aurelexa is a global technology company focused on building scalable, high-performance digital solutions. We partner with startups and enterprises to deliver innovative products powered by modern technologies and strong engineering practices.

Apply here: https://aurelexa.com/hire-reactjs-developers