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Blockchain Developer
Citi
onsiteUSD 81,000 - 84,000 / year
New York, NY / Jersey City, NJ Posted Jul 22, 2026
About this role
Role: Blockchain Developer
Location: New York, NY / Jersey City, NJ - Onsite
Employment Type: Full-Time
Key Responsibilities
- Design, develop, and deploy Web3 components and integrations for Citi's Digital Asset Platform, including smart contracts, on-chain event listeners, wallet integrations, and blockchain protocol connectors
- Build and maintain backend services that interface with public and permissioned blockchain networks (e.g., Ethereum, Hyperledger Besu, Corda, or equivalent)
- Develop, test, and audit smart contracts written in Solidity or equivalent languages, ensuring security, correctness, and gas efficiency
- Integrate Web3 libraries and SDKs (e.g., Web3J, Web3JS, Ethers.js, Viem) into enterprise Java and/or Node.js backend services
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