Work, stack, what they are building. The agent answers from this card.
Dev Shrimankar is a third-year B.Tech Computer Engineering student at Marwadi University, specializing in Web3 and smart contract development. He has hands-on experience with the MERN stack and Solidity, focusing on building decentralized applications (dApps) and enhancing smart contract security. Notable projects include Gmblr, a lottery dApp on the Sepolia testnet, and SimpleVault, a full-stack Ethereum application. Dev is actively learning and contributing to the blockchain space, aiming to specialize in smart contract auditing and security.

“Built Gmblr 🎟️ — a Sepolia lottery dApp. Frontend: made with Codex’s help. Smart contract: written by me, so please blame me professionally. 😄 🔗 #Web3 #Solidity #React”
“Built and shipped my first developer portfolio 🚀 Im a 3rd-year B.Tech Computer Engineering student (Marwadi University), learning my way through JavaScript → Solidity, with the MERN stack as my foundation. This site is where Im bringing that work together in one place. A few projects I enjoyed building: → SimpleVault — a full-stack dApp connecting a Solidity contract to a Web3 frontend → MiniBlockchain_js — a blockchain simulator built from scratch to understand whats happening under the hood →…”
“Excited to share Gmblr, a Sepolia testnet lottery dApp I built.Users can connect their wallet, choose from available tickets, purchase one using Sepolia ETH, reveal their result through a scratch-card interaction, and—if they hold the winning ticket—claim the on-chain prize pool. The frontend was created with the help of Codex, while I wrote the Solidity smart contract myself. A collaborative effort: Codex handled some UI heavy lifting, and I handled the part where one misplaced line can make e…”
“22 days to go until Devcon 8 India! 🚀 I'm excited to share that I'll be attending my first Ethereum conference. As a Computer Engineering student on the Web3 path, learning Solidity and aiming for smart contract security, this is a big milestone for me. What I'm hoping to take away: • Meet builders, auditors and researchers in the Ethereum ecosystem • Learn from the sessions and workshops • Bring back ideas to level up my own projects If you're attending too, let's connect and grab a chai! ☕ #D…”
“Shipped my portfolio 🚀 JS → Solidity → building toward smart contract auditing & security. Inside: a full-stack dApp (SimpleVault), a blockchain sim built from scratch, and a MERN complaint portal. Still early days, but it's a start 🧱 Portfolio:”
“Just wrote my first Foundry tests for a Solidity smart contract! 🚀 Diving deep into testing with Foundry as part of my Web3 journey through Cyfrin Updraft — debugging compiler errors, learning assertEq, console.log, and how Solidity handles function calls vs. references (missed parentheses taught me that one the hard way 😅). Testing is where you really understand why your contract works, not just that it compiles. #Solidity #Web3 #Foundry #SmartContracts #BlockchainDevelopment #CyfrinUpdraft #L…”
“22 days to go until @EFDevcon 8 India 🇮🇳 My first Ethereum conference, and it's happening in Mumbai. Can't wait to meet builders, learn from the best, and go deeper into smart contract security. See you there, fam! 👀 @EFDevcon #Devcon8 #DevconIndia #Ethereum”
“I'm attending @IBWofficial 2026! Next stop: Mumbai 🇮🇳 See you at India Blockchain Week, November 1–2, 2026.”
“I'm attending India Blockchain Week (IBW) Conference 2026! Next stop: Mumbai 🇮🇳 Join me at India Blockchain Week, November 1–2, 2026 — two days of big ideas, builders and the people shaping India's Web3 future. https://lnkd.in/dqK-i4pU”
“Admin, Faculty, and Students, all enforced on-chain. 📂 Code here: https://lnkd.in/dmEYWvAb Features: 🔐 Role-based access control (Admin / Faculty / Student modifiers) 👨🏫 Faculty enrollment & login-based attendance tracking 🎓 Student enrollment with on-chain fee payment (payable functions) 📋 Dynamic classroom roster — only fee-verified students get marked present 🗂️ Struct-based data modeling for students & faculty records More features on the way as I keep practicing 🚧 Currently learning Found…”