Smart Contract Debugging in Web3, Express

We are seeking a Web3 software developer to update a MVP platform. The platform will leverage blockchain technology to ensure secure, transparent, and tamper-proof in-game transactions and asset ownership.
Project Overview:
Use Cases:
1. In-Game Transactions: Secure and transparent transactions for in-game assets.
2. Asset Ownership: Verifiable ownership of digital assets.
3. Player Rewards: Decentralized reward system for players.
4. Interoperability: Assets usable across multiple games.
Key Problems:
1. Audits security risks on Casino game smart contract.
2. Fix issues relating web3 automation on the backend(Express) part.
3. Integrate token-to-nft exchange function.
Tech Stack:
Blockchain: Ethereum
Smart Contracts: Solidity
Frontend Integration: Web3.js
Backend: Node.js, Express.js
Database: MongoDB
Frontend Framework: React.js
Testing: Mocha, Chai
Deployment: Docker, Kubernetes
Version Control: Git, GitHub
Requirements:
Experience with Ethereum and Solidity.
Proficiency in Web3.js, Node.js, Express.js, and React.js.
Familiarity with MongoDB, Docker, and Kubernetes.
Understanding of decentralized gaming and cryptographic principles.