Web3 & Blockchain Developer

TechBiz Global GmbH; Dubai; On-site; AED 150,000 - 200,000; Full time

Job summary

A leading tech recruitment firm in Dubai is seeking a Web3 & Blockchain Developer to join a client's team. The role involves developing smart contracts, integrating blockchain functionalities, and collaborating on game infrastructure. Candidates should have 3-5 years of experience in Web3 development, strong skills in Solidity, and familiarity with modern web frameworks like React. This is a fantastic opportunity to work in a dynamic environment.

Qualifications

• 3-5 years of experience as a Web3 / Blockchain Developer with strong knowledge of Ethereum.
• Proficient in Solidity and frameworks like Hardhat, Truffle, or Foundry.
• Experience with Web3JS or EthersJS for wallet connections.
• Familiarity with React, Redux, and Tailwind CSS.
• Strong grasp of blockchain security best practices.

Responsibilities

• Design and deploy smart contracts for match results and NFT minting.
• Integrate Web3 functionality with the frontend and manage on-chain transactions.
• Support development of ranking systems using blockchain validation.
• Collaborate with databases to manage user data and NFT metadata.

Skills

Web3 development

Blockchain integration

Smart contract development

Solidity

Ethereum

React.js

Problem-solving

Tools

Hardhat

Truffle

MongoDB

Redis

NodeJS

ExpressJS

Job description

At TechBiz Global, we are providing recruitment service to our TOP clients from our portfolio. We are currently seeking a Web3 & Blockchain Developer to join one of our clients' teams. If you're looking for an exciting opportunity to grow in a innovative environment, this could be the perfect fit for you.

Overview

Web3 & Blockchain Developer role focusing on smart contract development, blockchain integration, game & player infrastructure, and backend collaboration to support a scalable platform with NFT assets and on-chain interactions.

Responsibilities

• Smart Contract Development & Deployment
  • Design, implement, and deploy smart contracts for match results, NFT minting, and automated reward distribution.
  • Ensure transparency, automation, and tamper-proof operations through secure contract logic.
  • Conduct testing and auditing of contracts to maintain reliability and security.
• Blockchain Integration
  • Integrate Web3 functionality with the frontend (React, Tailwind, TypeScript).
  • Implement wallet connection (MetaMask, Coinbase Wallet, etc.) and manage on-chain transactions.
  • Enable NFT creation and asset management directly within the platform.
• Game & Player Infrastructure
  • Support the development of a skill-based ranking system that reflects player performance and progression.
  • Contribute to anti-cheating and fair-play mechanisms using blockchain validation and secure protocols.
• Backend & Database Collaboration
  • Work with databases (MongoDB) to store user data, match history, tournament records, and NFT metadata.
  • Use Redis for caching leaderboards, session data, and real-time game state.

Qualifications

• 3-5 years of proven experience as a Web3 / Blockchain Developer with strong knowledge of Ethereum.
• Proficiency in Solidity and smart contract frameworks (Hardhat, Truffle, or Foundry).
• Experience with Web3JS or EthersJS for wallet connections and contract interactions.
• Familiarity with React, React.js, Redux, Tailwind CSS, and TypeScript for frontend integration. Familiarity with NodeJS and ExpressJS for backend development.
• Understanding of MongoDB and Redis for backend data management.
• Strong grasp of blockchain security best practices and optimization techniques.
• Experience with NFT standards (ERC-721, ERC-1155) and tokenomics.
• Problem-solving mindset and ability to work in a fast-paced, collaborative environment.

Nice to Have

• Experience with real-time gaming platforms or competitive ranking systems.
• Knowledge of L2 scaling solutions (Polygon, Arbitrum, Optimism) or cross-chain integrations.
• Previous work on anti-cheating mechanisms or game validation protocols.
• Familiarity with tournament systems and multiplayer matchmaking.