Hi, I'm Rajeeb, a blockchain engineer with over 4 years of experience in the software development industry. Based in Bangalore, India, I specialize in backend and frontend technologies, with a primary focus on blockchain and decentralized finance (DeFi). I began my career as a Blockchain Developer in the R&D team at GuardianLink, where I gained substantial experience with EVM chains, including Ethereum, Binance Smart Chain, and Polygon. I worked extensively on smart contract development and became proficient with multiple ERC standards, such as ERC-20, ERC-721, ERC-1155, and ERC-2981. Additionally, I conducted thorough DeFi research, exploring platforms like Aave and Compound, and provided clients with innovative solutions based on detailed market analysis. After 1.5 years at GuardianLink, I moved to Hashstack Finance as a Blockchain Engineer. There, I played a key role in developing a DeFi lending and borrowing protocol on the Layer 2 blockchain Starknet. My responsibilities included migrating smart contracts from Solidity to Cairo, ensuring robust functionality and enhanced security. I was also actively involved in internal auditing processes, adhering to SWC registry standards and performing rigorous unit and end-to-end testing. Our efforts led to a successful mainnet launch last November, achieving a Total Value Locked (TVL) exceeding $700k. Following my tenure at Hashstack Finance, I worked as a Senior Blockchain Engineer at Auro Digital, a provider of B2B SaaS solutions for order, portfolio, and investment management (OMS/PMS/IMS). In this role, I led the integration of CCXT APIs, enabling connectivity with over 100 centralized crypto exchanges, significantly enhancing operational efficiency and market reach for B2B businesses. My expertise extends across EVM-based chains like Ethereum, Binance, Polygon, Avalanche, and Klaytn. I have a deep understanding of ERC-20 token development, NFT marketplaces, wallet integrations, Chainlink Oracles, smart contract automation, and DEX/DAO development. Additionally, I bring proficiency in programming languages such as Solidity, Cairo, Ethers.js, Web3.js, Hardhat, ReactJs, NodeJs, Rust, Go lang etc. I have also managed bug reporting GitHub repositories and contributed to developer documentation within our codebase. Throughout my journey, I have demonstrated a passion for innovation and a commitment to leveraging blockchain technology to drive significant advancements across diverse sectors. Thank you for considering my profile. Reach out to me at: Email: rajeebk.malik@gmail.com Mobile: (+91) 7002815819