Tanmoy Sarker
Hi, I'm Tanmoy Sarker, a versatile software developer based in Ballarat with a strong focus on frontend, mobile, and Web3.
About
Hi, I’m Tanmoy Sarker, a versatile software developer based in Ballarat with a strong focus on frontend, mobile, and Web3. I’ve built NFT membership systems, wallet-auth DApps, and smart contract platforms, and I’ve delivered scalable interfaces for home automation and e-commerce. I thrive in product-driven, collaborative teams where UX, performance, and maintainable code drive outcomes.
I enjoy turning complex problems into delightful experiences, from crafting robust React/Next.js frontends to bridging on-chain data with backend services. My experience spans startups and contract work across Australia, India, Estonia, and Bangladesh, and I’m always eager to learn new technologies and contribute to meaningful projects.
- 5 years' experience
- Joined October 2025
Industry experience
- Software & Internet
- Gaming
- Professional Services
- Media & Entertainment
- Retail
- Healthcare
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Work experience· 5 roles
Built and deployed ERC-721 NFT membership contracts with mint/burn logic and upgradeable proxy (OpenZeppelin, Hardhat). Implemented wallet auth flows with EIP-191 signatures, JWT tokens, and MetaMask, WalletConnect, and Passport support. Developed frontend DApp (Next.js + React) for wallet connect, contract interaction, and real-time UX feedback. Integrated blockchain with backend APIs for membership checks and on-chain queries. Secured contracts with signature verification, access control, and anti-reentrancy guards.
Delivered debt management system for 70+ ForHealth clinics to improve financial oversight. Upgraded QR Check-In app with concession card benefits, enhancing access for seniors and DVA holders. Led frontend dev and testing; used MS Clarity and MongoDB to optimize performance and UX.
Worked on a Blockchain based token sharing application with Ethereum. Freelance frontend development. Designed and integrated the app interface with Node.js server logic, developed secure APIs, implemented MongoDB CRUD operations, and converted the project to TypeScript for better maintainability.
Education
Certifications and awards
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