Chandan Kumar

Experienced Web3 developer specializing in Solidity smart contracts for Ethereum, Polygon, BSC, and other EVM chains. I build secure, gas-efficient contracts for DeFi protocols, NFTs (ERC-721/1155), tokens (ERC-20), DAOs, staking/farming systems, and full dApps.
What I deliver:

Custom smart contract development from scratch
Gas optimization (reduce fees by 20-50%)
Security audits & best practices (reentrancy, overflow checks, OpenZeppelin libraries)
Integration with frontends (Web3.js, ethers.js, React/Vue)
Testing (Hardhat, Foundry, unit/integration tests)
Deployment & verification on explorers

Why choose me?

100% focus on security – no rugs or exploits
Transparent process: milestones, code reviews, full documentation
Direct communication & negotiation – no platform fees eating your budget
Portfolio: Check my GitHub [your GitHub link here] for live projects & 'Hire Me' page

Starting from $XXX (fixed/project-based) or $XX/hr. Let's discuss your idea – DM me with project details for a free quick consult! 🚀 #Solidity #SmartContracts #DeFi #Web3Dev"