Nikhil Bajaj

Designed and implemented a payment orchestration protocol enabling secure cross-chain stablecoin transfers and automated PSP/market-maker coordination. Built ERC-4337 smart wallet infrastructure with passkey/social-login self-custody and signature-based authorization, plus settlement monitoring across multiple chains.

Developed MEV mitigation strategies and time-aware Solidity algorithms, integrating MEV-Time Oracles to enable tamper-resistant future-time data for time-sensitive contract execution. Designed intent-based interaction systems and cross-chain protocols to improve reliability and reduce latency in DeFi applications.

Built Account Abstraction infrastructure with Express.js APIs for UserOperation selection and decentralized bundlers, optimizing gas usage by 25% and improving bundler profitability. Engineered secure cross-chain bridge contracts, BLS randomness beacons and TBTC custody contracts with comprehensive test coverage to ensure high availability.

Designed and implemented ERC-721 and ERC-1155 NFT contracts and a React-based marketplace with bidding, royalties and gasless EIP-712 flows. Integrated payment gateway, Keepers bots and backend systems to automate minting, auctions and token management.

Developed smart contracts for supply chain transparency that reduced inefficiencies by 20% and cut recall-related costs by 50%. Automated invoicing and optimized cloud infrastructure, increasing invoicing efficiency by 100% and lowering operational costs by 30%.