Senior Blockchain Engineer

Company: EPAM Systems

We are looking for a Senior Blockchain Engineer. If you are looking to give your career a real boost with a global leader in digital transformation, EPAM is the perfect choice. If you’d like to learn more about this position and project, apply now.

Responsibilities

• Design, develop, and deploy secure smart contracts using Solidity for the Ethereum blockchain ecosystem
• Architect and implement robust decentralized applications (dApps) and backend integration with smart contracts
• Conduct comprehensive code reviews, gas optimization, and thorough unit/integration testing for all blockchain components
• Collaborate closely with product, security, and front-end teams to ensure seamless integration and top-tier protocol performance

Requirements

• 5+ years of software engineering experience with a strong focus on blockchain development and smart contracts
• Expert-level proficiency in Solidity and deep, hands-on experience with the Ethereum Virtual Machine (EVM) and Ethereum ecosystem
• Proven track record of designing, auditing, and successfully deploying secure, production-grade smart contracts on mainnet
• Strong understanding of cryptography, consensus mechanisms, DeFi protocols, and Web3 security best practices

Nice to have

• Experience with smart contract testing and development frameworks such as Hardhat, Foundry, or Truffle
• Familiarity with Layer 2 scaling solutions (e.g., Arbitrum, Optimism, zk-Rollups) and cross-chain bridge technologies
• Contributions to open-source blockchain projects, developer tooling, or recognized security audit participation (e.g., bug bounties)
• Experience with zero-knowledge (ZK) proofs or alternative smart contract languages (e.g., Rust, Vyper)

Skills: Blockchain