Full-Stack Developer (React, Node.js & Sui Move) — Existing Loyalty Rewards dApp

We run a live loyalty rewards dApp on the Sui blockchain, where small businesses issue digital loyalty points to customers for purchases. Our core Move smart contracts are already deployed and working. We’re looking for a mid-level or senior Full-Stack Developer with experience in React, Node.js, and Sui Move to help us improve and extend the existing platform. What You’ll Do - Update and extend existing Sui Move smart contracts with new loyalty rewards features. - Build and improve frontend interfaces using React and TypeScript. - Develop and maintain backend APIs and services using Node.js. - Integrate the React frontend and Node.js backend with existing Sui smart contracts. - Implement wallet connectivity, transaction signing, and on-chain transaction handling. - Fix minor bugs, improve application reliability, and expand automated test coverage. - Collaborate with the team to review the existing codebase and deliver incremental improvements. Required Experience - Solid experience with React, TypeScript, and modern frontend development. - Strong Node.js experience building APIs and backend services. - Practical experience with Sui Move and the Sui blockchain. - Experience integrating web applications with blockchain smart contracts. - Familiarity with Sui wallets, transaction execution, and the Sui TypeScript SDK. - Experience writing automated tests, debugging issues, and maintaining existing production applications. - Ability to work independently within an established codebase. Project Scope This is an ongoing development role focused on improving a working product. The core smart contracts are already deployed, and the platform is operational. We are not launching a new token, building an NFT marketplace, or developing protocol-level DeFi infrastructure. Our focus is on practical loyalty rewards functionality, full-stack integration, bug fixes, and code quality.