← Lavori

Web3 Developer Needed — Crypto Platform (Prototype Ready)

Budget: $20.0 - $40.0 HOURLY / PART_TIME ⭐ 0.00 (0) United Arab Emirates

api, web-programming, blockchain, solidity

Hey, I'm building AltForge — a multi-chain crypto platform where users can deploy ERC-20 tokens, swap assets, track transactions, and manage their portfolio, all from one dashboard. I'm looking for an experienced Web3 developer to take an already-built, working prototype to a fully launchable product. What's already done: The prototype is complete — frontend and backend both built. Here's what exists: Full UI — landing page, dashboard, send/receive modals with QR codes, swap interface, gas tracker, TX tracker, session manager, portfolio page, settings Real MetaMask wallet connect via ethers.js Node.js + Express backend with JWT authentication, SQLite database, real Etherscan API integration for live gas prices and TX lookups Session management — tracks active devices with location, revoke support Two-tier plan system — Free (1% fee) and Pro (0.4% fee) Deployment configs for Railway/Render already written Supported chains: Ethereum, BSC, Polygon, Fantom, Moonriver What I need from you: Must have for launch: Real wallet balance fetching via Alchemy/Infura — read actual ETH + ERC-20 balances from connected wallet and display in portfolio Real swap execution — the swap UI is fully built, needs 1inch or 0x Protocol API wired in to execute actual on-chain swaps via ethers.js ERC-20 token factory smart contract — so users can create tokens from the dashboard (name, symbol, supply, decimals) On-chain fee collection — platform takes 1% / 0.4% cut on swaps, needs smart contract routing to collect it For launch readiness: Proper invite/access code system — replace hardcoded codes with a real invite management flow Pro plan payment — Stripe or crypto payment gateway for upgrades Security review of auth, API endpoints, and contracts before going public Tech stack: Frontend: Vanilla HTML/CSS/JS (intentional, no framework) Web3: ethers.js 6.x Backend: Node.js + Express, SQLite, JWT Blockchain data: Etherscan API family Smart contracts: Solidity (your area) Hosting: Railway or Render What I'll give you: Full source code immediately Walkthrough call to explain everything Quick responses and clear feedback throughout Test wallet and API keys for development What I'm looking for from you: A couple of relevant Web3 projects you've shipped Rough timeline for the core items above Your rate (hourly or fixed, both fine) Happy to jump on a call anytime to show you the prototype live. Looking forward to it.
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