2025 · Design + engineering
Reswap
Decentralized exchange on Solana — wallets, swaps, live charts and real-time data, built front to back
Context
Decentralised cryptocurrency exchange on Solana — the full DeFi surface for an on-chain trader. Token swap with routing through the Jupiter aggregator, IDO sale for new tokens, liquidity engine with pools and provider yield, staking, rewards and yield mechanics, a token page with a real-time price chart. Nine locales (en/ua/ru plus six others), wallet-connect across multiple Solana wallets (Phantom, Solflare, Backpack and others), on-chain ORAO randomness. Design language, frontend and on-chain integrations all came out of one set of hands.
Task
Carry a complex DeFi product through its full scope — swap, IDO, liquidity, staking, rewards, FAQ, token page — without it feeling like a developer console. The design language has to hold the same calm clarity on a simple swap pane, a multi-step IDO flow and a live chart with price tickers. Engineer the on-chain layer (wallet adapter, web3.js, Jupiter routing, SPL Token, ORAO randomness), keep realtime data flowing through reconnecting WebSockets and a custom RPC layer, and make the whole thing localisable across nine languages with consistent typography.
Engineered
Design language from a blank canvas: palette, typography, motion system, custom iconography by section, layout tokens. Next.js 15 + React 19 + TypeScript App Router with next-intl for nine locales, Radix UI primitives, Tailwind design tokens. Solana stack: @solana/web3.js, wallet adapter for multiple wallets (Phantom, Solflare, Backpack, Trust and others), SPL Token, Jupiter aggregator for swap routing, on-chain ORAO randomness for random events. TradingView lightweight-charts for real-time price views with a custom feed layer on top. Lottie for motion accents, react-slick + framer-motion across the surface. Reconnecting WebSockets for live price and orderbook updates, axios for off-chain calls, a custom RPC layer with rate-limiting and retry logic. Server actions for off-chain workflow (IDO whitelist, claim flows). Every visual element original; every system layer hand-built.
