Blockchain Developer specializing in secure Smart Contracts, DeFi protocols, and decentralized applications that scale.
I am Arjun Malhotra, a blockchain engineer focused on building robust infrastructure for the next generation of the internet. With deep expertise in the Ethereum ecosystem, I transform complex cryptographic concepts into functional, high-performance DApps.
My philosophy is centered on security-first development—ensuring that decentralized systems remain immutable, transparent, and user-empowered.
Leading the development of a cross-chain liquidity aggregator. Responsible for architecting smart contracts in Solidity and implementing zero-knowledge proof verification modules to enhance user privacy.
Designed and deployed secure DeFi vault strategies. Conducted internal audits and gas optimization which reduced transaction costs for users by 25% across the protocol.
Developed front-end interfaces for an NFT minting engine using Next.js and Ethers.js. Integrated IPFS for decentralized metadata storage and managed wallet connection states.
Assisted in building RESTful APIs using Node.js and PostgreSQL. Migrated legacy data to a cloud-based architecture, improving system uptime and reliability.
Solidity expert with a focus on gas optimization, OpenZeppelin standards, and secure upgradeability patterns.
Architecting AMMs, lending protocols, and liquidity mining programs on Polygon, Arbitrum, and Ethereum.
Proficient in formal verification, Slither, and MythX to ensure contract immunity against common attack vectors.
Full-stack DApp development using Ethers.js, Wagmi, and Viem for seamless blockchain-to-frontend communication.
Designing on-chain governance models using Snapshot and Tally for decentralized community ownership.
Extensive use of Foundry, Hardhat, and The Graph for indexing and testing decentralized data.
A non-custodial lending platform featuring algorithmic interest rates and flash-loan prevention mechanisms.
View on GitHub ↗High-efficiency NFT marketplace utilizing batch-minting standards to reduce gas costs by up to 70%.
View Demo ↗A modular governance framework designed for treasury management and quadratic voting systems.
Case Study ↗I am currently available for selective freelance opportunities and technical partnerships.