Senior Web3 Full Stack Engineer

Blockchain Game Alliance is hiring a Senior Blockchain Engineer to design and build core blockchain infrastructure powering Web3 gaming products, decentralized economies, and NFT systems.

We are looking for engineers with production mainnet experience building secure smart contracts and scalable Web3 infrastructure.

Responsibilities

• Design and develop secure smart contracts

• Build NFT and token-related systems

• Integrate wallet connection and transaction flows

• Develop backend blockchain infrastructure and APIs

• Optimize gas efficiency and transaction reliability

• Conduct security-focused code reviews and testing

• Collaborate with frontend and game engineering teams

Required Experience

• 5+ years of software engineering experience

• 3+ years of blockchain/Web3 development

• Strong experience with Solidity and EVM chains

• Experience deploying production smart contracts

• Knowledge of ERC-20, ERC-721, ERC-1155 standards

• Experience with Web3 libraries such as ethers.js or web3.js

• Understanding of blockchain security best practices

• Experience with wallet integrations and transaction handling

• Familiarity with cloud/backend infrastructure

Nice to Have

• Experience with Web3 gaming projects

• Smart contract auditing experience

• Rust/Solana experience

• Layer 2 scaling experience

• DeFi or marketplace experience

Tech Stack

• Solidity

• TypeScript / Node.js

• ethers.js

• Hardhat or Foundry

• Polygon / Ethereum / Arbitrum

• AWS or GCP

What We’re Looking For

We value engineers who can work independently, make architectural decisions, and contribute to product direction, not just implement tickets.

Location: Remote

Duration: 10 Months

Type: Full-time or Part-time

Compensation:

* $14k–$18k/month (Full-time)
* $100–$130/hour (Contract / Part-time)