Full-Stack Web3 Developer Needed for Dashboard + Swap + Web3 Integration Upgrade We have an existing crypto intelligence dashboard that tracks whale activity, on-chain transactions, token data, and trading patterns on Solana. The platform is fully functional with a complete backend, frontend, and detailed handover notes from the previous developer. We now want to enhance the dashboard with new UI improvements and Web3 features: Wallet connection Integrated swap module Buy/Sell card on each transaction Notification panel General UI/UX improvements You will be working on an established codebase with clear documentation. Scope of Work 1️⃣ UI/UX Improvements Update dashboard layout Improve card spacing, typography, responsiveness Add quick filters (Snipers / High Conviction / New Coins / Low Caps) Add sidebar or top-bar notifications 2️⃣ Wallet Connection Integrate WalletConnect v2 Support Phantom / Solflare (Solana) Support MetaMask / EVM wallets Display connected wallet + balances 3️⃣ Swap Module Integration Integrate Jupiter (Solana) or 1inch/0x (EVM) Enable non-custodial buy/sell directly on dashboard Prefill token when user clicks a transaction Show slippage, route, and gas estimate Handle approval + swap flow for ERC20 4️⃣ Buy/Sell Card on Each Transaction A compact action card on every whale transaction Opens swap with preloaded token + suggested amounts Optional liquidity / token age warning 5️⃣ Notifications System Add a notification icon/bell Display important whale activity alerts Fetch alerts using existing API endpoints 6️⃣ Additional Improvements Minor performance optimizations Bug fixes UI polish and modularization Frontend React.js Next.js TypeScript TailwindCSS Modern UI/UX understanding Blockchain / Web3 WalletConnect v2 Phantom / Solflare / MetaMask Swap APIs: Jupiter, Raydium, 1inch, 0x Understanding of slippage, approvals, routing Backend (Bonus) Node.js Redis (optional) WebSockets (optional) Other Skills Clean, maintainable code structure Experience with dashboards Strong communication Experience integrating third-party APIs