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Shimul S. — Junior Blockchain Developer from India

Shimul S.

Junior Blockchain Developer

India 2-3 years
Open to offersNew to Platform
Languages
EnglishHindiGerman
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About

Shimul S. is an accomplished Solidity Developer and Smart Contract Auditor, specializing in building and deploying decentralized applications focused on Ethereum and Binance Smart Chain ecosystems. He has demonstrated expertise in constructing a robust ERC-20 Token Presale DApp, integrating advanced technologies like MetaMask and WalletConnect to ensure secure transaction handling and real-time presale tracking utilizing Ethers.js. Shimul's prowess in security is further highlighted by his role in developing a multi-chain DApp browser wallet with encrypted private key management compatible with major DApps including Uniswap and PancakeSwap. Additionally, Shimul has engineering experience with a decentralized exam proctoring platform, PROVORA, leveraging cryptographic measures to reduce exam breaches significantly. His technical arsenal includes the use of frameworks and tools such as Foundry, Truffle, and Hardhat, as well as languages like JavaScript and Python, positioning him as a dynamic asset in the blockchain and Web3 domains. He actively advances his skills in smart contract auditing, with a focus on reentrancy, CEI pattern, and gas optimization.

Experience

  • Freelance Solidity & Web3 Developer

    Upwork
    Developed a decentralized exam integrity platform, the PROVORA, ensuring explainable and auditable integrity decisions, leveraging W3C Verifiable Credentials. Built the security framework of PROVORA to enhance protection against exam breaches through advanced cryptographic strategies. Designed an ERC-20 Token Presale DApp using Solidity smart contracts in combination with a Vite + React frontend, while facilitating wallet connectivity and transaction processing through Ethers.js integration. Created a multi-chain DApp browser wallet with encrypted key management compatible with various DApps.

  • Blockchain / Web3 Developer

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    Engineered an astrodynamics training environment in the OpenEnv ecosystem, focusing on fuel-efficient space mission planning. Developed a comprehensive WebSocket protocol and a FastAPI server for handling HTTP requests. Architected a provably fair raffle system utilizing Chainlink Automation for automated winner selection and Chainlink VRF V2.5 for ensuring randomness. Diagnosed and resolved a uint64 arithmetic overflow issue within Chainlink's SubscriptionAPI, creating a mock for enhanced compatibility.

Skills & Expertise

Web3 DeveloperCRMSolidity DeveloperAI EngineerBlockchain Developer

Education

  • Bachelor of Technology in Electronics And Communication Engineering (VLSI)
    Maharja Agrasen Institute Of Technology (MAIT) · 2024 — 2028