Web3 & Blockchain Developer

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.
Key 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.

• 
  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.