Web3.js / Ethers.js
Development
Frontend Web3 integrations and wallet connections.
We integrate Web3 functionality into frontend applications — wallet connections, contract interactions, on-chain data fetching, and transaction management.
Cases
VK NFT Marketplace
Designed and developed the smart contract infrastructure and web frontend for VK's NFT marketplace — one of Russia's first enterprise-grade NFT platforms. Delivered ERC-721/1155 contracts, minting mechanics, royalty splits, and a creator dashboard integrated with VK's social graph.
DeFi Lending Protocol
Decentralized lending protocol with dynamic interest rates, collateral management, and automated liquidation logic — $8M TVL at peak, fully audited with zero critical findings on Ethereum mainnet.
DeFi Yield Aggregator
Automated yield optimization protocol with smart contract vaults, multi-DEX routing, and auto-compounding strategies. Deployed on Ethereum and Polygon with $12M TVL at peak.
NFT Launchpad Platform
Full-featured NFT minting platform with allowlist management, Dutch auction mechanics, royalty enforcement, and secondary market integration — used by 50+ collection launches.
Cross-Chain Decentralized Exchange
DEX with cross-chain swaps via LayerZero bridge, concentrated liquidity pools, and on-chain limit orders. Live on Ethereum, Arbitrum, and BNB Chain with $30M daily volume.
Multi-Chain Non-Custodial Wallet
Non-custodial wallet supporting Ethereum, Solana, BNB Chain, and Polygon with DApp browser, built-in swap aggregator, and hardware wallet (Ledger/Trezor) support.
Solana GameFi Platform
Blockchain gaming platform on Solana with in-game NFT assets, token rewards, guild mechanics, and on-chain game state using Anchor framework — 50k DAU at peak.
Crypto Portfolio Tracker MVP
Real-time portfolio dashboard aggregating data from 15 exchanges and 5 chains — P&L tracking, DeFi position monitoring, and tax reporting module. Launched in 7 weeks.
Why Codifysoft
Senior engineers
Mid+ and senior specialists only
Fast scaling
Team expansion in 1–2 weeks
Flexible engagement
Hourly, fixed, or dedicated
Enterprise experience
Complex, high-load systems
Blockchain expertise
302+ contracts deployed
Full transparency
Direct access to your team
Need Web3.js / Ethers.js Engineers?
Let's discuss your project. We'll match you with the right team in days, not months.