Senior Blockchain Engineer – System Integration

CloudWave Digital

Contract · Flexible hours

About the role

CloudWave Digital is building a next‑generation decentralized finance platform. We need a Senior Blockchain Engineer to design, develop, and deploy robust smart contracts that power core financial services.

Key responsibilities

• Architect and implement Solidity smart contracts for lending, staking, and token management.
• Integrate contracts with front‑end dApps using Web3 libraries.
• Write comprehensive unit and integration tests to ensure contract reliability.
• Collaborate with product and security teams to define functional requirements.
• Optimize gas usage and improve contract performance.
• Document contract APIs and deployment procedures.

Must-have skills

• 5+ years of experience in blockchain development, especially Ethereum.
• Proficiency in Solidity and smart contract design patterns.
• Strong JavaScript and Python programming skills.
• Experience with REST API integration and Web3.js/Ethers.js.
• Understanding of security best practices for smart contracts.

Nice to have

• Familiarity with Layer‑2 scaling solutions.
• Experience auditing third‑party contracts.