BLOCKCHAIN DEVELOPER - CITI BANK

NOW HIRING: BLOCKCHAIN DEVELOPER CITI BANK Client: Citi Bank Location: New York, NY / Jersey City, NJ Position Type: Full-Time Experience: 10+ Years Role Overview Seeking an experienced Blockchain Developer to design, develop, and deploy Web3 components and integrations for Citi s Digital Asset Platform, including smart contracts, blockchain integrations, wallet solutions, and digital asset infrastructure. Must-have Skills Blockchain / Web3 Development Solidity Smart Contracts Ethereum / Hyperledger Besu / Corda or equivalent Java / Spring or Node.js Web3J / Web3JS / Ethers.js / Viem Smart Contract Testing Hardhat / Foundry / Truffle Blockchain Fundamentals Consensus, Transactions, Gas & Wallet Infrastructure ERC-20 / ERC-721 / ERC-1155 / ERC-3525 Event-Driven Architecture / Asynchronous Programming Kafka / RabbitMQ Docker / Kubernetes / CI/CD Cryptography Digital Signatures, Hashing, PKI & Key Management Git / Jira / Jenkins / Helm Preferred / Plus Skills Hyperledger Besu / Fabric / Corda / R3 Layer 2 Polygon / Optimism / zkSync Cross-Chain Interoperability Digital Asset Custody Tokenization / DeFi / TradFi Financial Services / Regulated Industry Experience Agile / Scrum Key Responsibilities Build and integrate Web3 components, smart contracts and blockchain protocols. Develop backend services connecting to public and permissioned blockchain networks. Build, test and audit secure and gas-efficient smart contracts. Implement event-driven architectures for on-chain events and transaction lifecycle management. Support digital asset custody, tokenization and DeFi/TradFi integrations. Collaborate with architects and senior engineers on scalable and secure Web3 infrastructure. Participate in code reviews, testing, documentation and Agile/Scrum delivery. IDEAL CANDIDATE Strong Web3 engineering and backend development background Strong security mindset and knowledge of smart contract vulnerabilities Excellent problem-solving and communication skills Strong understanding of APIs, microservices, data structures and design patterns Ability to work effectively with global, distributed engineering teams SEND RESUME rachael@sidramtech.com Please Share Your Updated Resume Work Authorization Current Location Availability Contact Details Follow Sidram Technologies for daily US IT jobs, Full-Time & Contract opportunities, interview tips, and hiring updates. #Hiring #BlockchainDeveloper #BlockchainJobs #Web3 #Web3Developer #BlockchainEngineer #Solidity #SmartContracts #Ethereum #Hyperledger #Corda #Web3J #EthersJS #Viem #Hardhat #Foundry #JavaDeveloper #SpringBoot #NodeJS #Kafka #Docker #Kubernetes #CICD #DigitalAssets #Tokenization #DeFi #FinTech #FinancialServices #CitiBank #NewYorkJobs #NYCJobs #JerseyCityJobs #NewJerseyJobs #FullTimeJobs #TechJobs #SidramTechnologies