Web3 Java Engineer for Institutional Digital Assets

Citigroup Inc.; New York (NY); On-site; USD 120,000 - 180,000; Full time

Job summary

Citi CIDAP is seeking a Blockchain/Web3 Java Engineer to contribute to the design, development, and deployment of Web3-native components powering institutional digital assets infrastructure. You will collaborate on on-chain event listeners, wallet integrations, and protocol connectors within a globally distributed team.

The role emphasizes building secure, scalable backend services and smart contracts, bridging decentralized patterns with enterprise-grade software standards across the Citi

Qualifications

• Strong blockchain fundamentals and deep interest in Web3.
• Proficient in Java and backend service development.
• Experience with Ethereum or other public/permissioned networks.

Responsibilities

• Design, develop, and deploy Web3 components and integrations for Citi's CIDAP platform.
• Build and maintain backend services that interface with blockchain networks (e.g., Ethereum, Hyperledger Besu, Solana).
• Develop, test, and audit smart contracts.

Skills

Blockchain engineering

Java

Web3

Smart contracts

Backend services

Tools

Ethereum

Hyperledger Besu

Solana

Job description

Citi CIDAP is seeking a Blockchain/Web3 Java Engineer to contribute to the design, development, and deployment of Web3-native components powering institutional digital assets infrastructure. You will collaborate on on-chain event listeners, wallet integrations, and protocol connectors within a globally distributed team.

The role emphasizes building secure, scalable backend services and smart contracts, bridging decentralized patterns with enterprise-grade software standards across the Citi