Web3 Full Stack Engineer

About Us

The Hashgraph Group (THG) is a pioneering Swiss-based Web3 technology company operating exclusively within the Hedera Hashgraph ecosystem. As experienced and qualified Web3 practitioners and engineers, we design, develop, and deploy enterprise-grade solutions and decentralized applications on Hedera. With operations globally, we unlock new growth opportunities for business in the Web3 economy .We deliver more than technology – we build business without barriers.

About the Role

We are seeking a talented Web3 Full Stack Developer to build cutting-edge decentralized applications using React, TypeScript, and NestJS. This role will involve developing both responsive frontend interfaces and robust backend infrastructure for our Web3 projects.

Key Responsibilities

Frontend

* Develop responsive and interactive user interfaces with React
* Implement Web3 wallet integrations (MetaMask, WalletConnect)
* Create seamless blockchain transaction user experiences
* Design and develop React components with TypeScript
* Implement state management using Redux or Zustand
* Optimize frontend performance and user experience
* Ensure cross-browser and cross-device compatibility

Backend

* Design and implement API endpoints using NestJS with TypeScript
* Document API specifications using OpenAPI (Swagger)
* Develop comprehensive test suites (unit, integration, and e2e tests)
* Manage database connections and schema migrations in NestJS
* Interact with Ethereum Virtual Machine (EVM) smart contracts
* Create and manage blockchain transactions
* Collaborate across teams to ensure seamless integration

Required Skills

* Expert-level TypeScript programming
* Advanced React development experience
* Proficiency with NestJS framework
* Solid understanding of Web3 wallet interactions
* Experience with state management libraries
* Knowledge of blockchain transaction flows
* Strong testing skills with Jest/Vitest and React Testing Library
* Familiarity with API documentation tools like Swagger
* Understanding of EVM and blockchain ecosystems

Technical Stack

* React
* TypeScript
* Web3.js / ethers.js
* Redux/Zustand
* Tailwind CSS
* NestJS
* Jest/Vitest
* OpenAPI/Swagger
* EVM blockchain
* Database migration tools
* Vite/Next.js

Bonus Points

* Experience with decentralized application design and architecture
* Understanding of smart contract interactions
* Performance optimization techniques
* Design system implementation
* Previous Web3 full stack development experience