CareerPlan

Lead Web3 Engineer - Digital Assets Platform

London, United KingdomFull-time2026-08-03 → 2026-11-10
Hybrid

Core

Build the backend of Citi's Integrated Digital Assets Platform (CIDAP), integrating blockchain networks and digital asset infrastructure for enterprise-grade web applications.

Role type

Senior IC backend engineer (Java/Solidity)

Builds

Production-grade digital asset platform components, APIs, and microservices

Domain

Financial services / Blockchain / Web3

Required skills

Java (Spring), Solidity, asynchronous programming, microservices, API development, blockchain node connectivity, transaction lifecycle management, code reviews, Agile/Scrum

Preferred skills

Web3 application development, Web3J/Web3JS libraries, DevOps, containerization, financial services experience

Technologies

Java, Spring, Solidity, Web3J, Web3JS, Docker, Hardhat, Foundry, Git, Jira, Jenkins

Responsibilities

Develop and maintain backend software components integrating with blockchain networks; Implement blockchain integrations including node connectivity and wallet interactions; Write, test, and deploy smart contracts; Build and maintain APIs and microservices; Implement asynchronous and event-driven processing for transaction lifecycle management; Participate in code reviews and contribute to technical documentation; Support debugging and troubleshooting across the blockchain software stack.

Seniority

Senior, hands-on IC