Senior Blockchain Engineer
New
C
CITA LabBlockchain, Web3
Fully remote, Flexible global team environmentFull-TimeSenior
Salary70,000 - 90,000 USD per year
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Job Details
- Experience
- 3+ years of experience at blockchain/Web3 companies
- Required Skills
- DockerNode.jsPythonEthereumGitGoRust
Requirements
- 3+ years of experience at blockchain/Web3 companies
- Strong understanding of blockchain architecture and decentralized systems
- Experience with Ethereum, EVM chains, and smart contract development
- Proficiency in Solidity
- Proficiency in at least one backend language (Node.js, Go, Rust, Python, etc.)
- Experience integrating wallets, exchanges, DeFi protocols, or blockchain infrastructure
- Knowledge of security best practices and common smart contract vulnerabilities
- Familiarity with RPC nodes, indexing, event listeners, and transaction lifecycle
- Experience using Git, CI/CD, Docker, and cloud infrastructure
Responsibilities
- Design and develop smart contracts, blockchain integrations, and Web3 infrastructure
- Build backend services interacting with EVM and non-EVM chains
- Develop secure wallet, DeFi, exchange, and staking-related systems
- Optimize smart contract performance, gas efficiency, and security
- Participate in architecture design, code reviews, and technical discussions
- Collaborate with frontend, backend, mobile, DevOps, and QA teams
- Troubleshoot blockchain node, RPC, indexing, and transaction-related issues
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