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Case study
Vaultka Crypto Platform
A crypto application built with React and Next.js, using NestJS for the backend with Web3 integration and Wagmi for wallet connectivity.
Role
Full-stack / Web3 engineer — product UI, NestJS services, and wallet flows
Problem
Users needed a trustworthy crypto product experience with reliable wallet connectivity and a maintainable TypeScript backend.
Approach
- Shipped the product surface in React and Next.js
- Implemented NestJS services for core backend workflows
- Wired Wagmi-based wallet connectivity for seamless on-chain actions
- Kept TypeScript end-to-end for safer refactors and integrations
Architecture
Next.js / React client
NestJS API services
Wagmi wallet layer
Web3 chain adapters
Results
Production crypto platform at vaultka.com
Wallet-ready UX with modern Web3 tooling
Typed full-stack foundation for faster iteration
Stack
ReactNext.jsNestJSWeb3WagmiTypeScript