The Shia Vault team needed a secure and user-friendly decentralized finance platform to offer interest-free crypto loans. The main objective was to let users deposit Shia tokens as collateral to borrow Ethereum against a one-time fee, completely eliminating ongoing interest charges while maintaining high transaction security.
As the Full-Stack & Blockchain Engineer, I built the entire platform from zero to launch, ensuring smooth interaction between modern web architecture and blockchain networks.
Responsibilities & Contributions
Developed responsive user interfaces using Next.js, React.js, Redux, and Material UI to manage complex application states and provide instant feedback
Architected secure server-side logic using Node.js and Express.js, supported by MongoDB for efficient data storage and user management
Integrated Web3 libraries including Ethers.js, Web3.js, and Wagmi to handle non-custodial wallet connections and smart contract interactions for collateral locking and borrowing
Tech Stack & Tools
Frontend
Next.js
React.js
Redux
Material UI
Backend & APIs
Node.js
Express.js
MongoDB
Integrations
Ethers.js
Web3.js
Wagmi
UI/UX
Figma
Key Impact & Results
Delivered a secure decentralized lending platform that successfully eliminated ongoing interest rates for borrowers
Optimized platform performance, transaction speed, and wallet onboarding for a seamless user experience
Built a modular, scalable architecture ready to support growing user liquidity and platform expansion
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Posted Sep 29, 2026
Built a decentralized finance platform using Next.js and Web3 tools, enabling users to collateralize tokens and borrow Ethereum with zero interest.