About This Role

We're looking for a Solidity Developer to build and improve smart contracts for an EVM-based vault protocol.

Our client is developing Zendarox Vault, a DeFi software project built on EVM. They need an experienced Solidity developer to enhance the vault protocol through smart contract development, testing, security review, and lending logic implementation. Success means a robust, secure protocol with proper integration across backend and frontend systems.

Responsibilities

• Develop and improve smart contracts using Solidity and Foundry
• Write and execute comprehensive tests to ensure contract reliability
• Debug issues and conduct security reviews of contract code
• Implement lending and yield-routing protocol logic
• Integrate smart contracts with backend and frontend systems as needed
• Optimize contract performance and gas efficiency

Qualifications

• Proven experience with Solidity and Foundry framework
• Portfolio of previous DeFi or smart contract projects
• Strong understanding of EVM architecture and security best practices
• Experience with testing frameworks and debugging smart contracts
• Familiarity with lending protocols or yield strategies

Skills & Tools