Madhan Kumar
Senior Blockchain Developer
About
Innovative and highly skilled Senior Blockchain Developer with 6 years of experience in designing, developing, and implementing blockchain-based solutions. Proficient in Ethereum, Solana, and smart contract development using Solidity and Rust. Strong understanding of DeFi, NFTs, Layer 2 scaling solutions, and consensus algorithms. Experienced in leading development teams, optimizing blockchain performance, and integrating blockchain with Web3 technologies.
Skills & Expertise (6)
Work Experience
Senior Blockchain Developer
Osiz Technologies Pvt Ltd
1-2019 - Present
Designed, developed, and deployed secure and efficient smart contracts for DeFi, NFT marketplaces, and DAOs using Solidity and Rust. Developed and deployed custom ERC-20, ERC-721, and ERC-1155 tokens, ensuring compliance with blockchain standards. Developed cross-chain bridges for asset transfers between Ethereum, BSC, Polygon, Solana, and Avalanche. Researched and integrated zero-knowledge proofs (ZKPs) and cryptographic techniques for enhanced transaction privacy. Conducted security audits and vulnerability assessments to prevent exploits like reentrancy attacks and flash loan exploits. Integrated Web3 technologies (Ethers.js, Web3.js) for seamless interaction between frontend applications and smart contracts. Built decentralized oracles integrating Chainlink and custom off-chain data feeds for real-world event-based smart contract execution. Built and maintained custom blockchain nodes, optimizing performance for high-throughput transactions.
Education
Bachelor of Science in Information System
2016 - 2018 · India
Certifications
Certified Blockchain Developer
Blockchain Council · 2019
This certification equips individuals with the essential skills and knowledge required to become a successful blockchain developer. It covers various aspects of blockchain development including Smart Contracts, Ethereum, Hyperledger, Multichain, and other blockchain platforms.
