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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
[email protected]
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What does a solidity developer do?
A Solidity developer is a programmer who specializes in writing smart contracts using the Solidity programming language
Solidity is a contract-oriented, high-level language for implementing smart contracts on various blockchain platforms, such as Ethereum
The responsibilities of a Solidity developer can vary depending on the specific project they are working on, but some common tasks they might be responsible for include:
- Writing and testing Solidity code for smart contracts, Debugging and troubleshooting issues with existing smart contracts
- Collaborating with other members of the development team to ensure that the contracts are implemented according to the project's specifications
- Keeping up-to-date with the latest developments in the Solidity and blockchain communities, and incorporating new best practices and techniques into their work
- Participating in code reviews and contributing to the development of coding standards and guidelines for the project.