Senior Java Lead Engineer — Microservices & AI-Driven

Citi

Greater London

Hybrid

GBP 90,000 - 120,000

Full time

13 hours ago

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Benefits offered by this job

27 days annual leave

Private Medical Care & Life Insurance

Pension Plan

Paid Parental Leave

Employee Assistance Program

Learning & development resources

Job summary

Citi is seeking a Senior Java Engineer to join the Banking Technology team. You will design and deliver enterprise-grade web applications, leveraging microservices and AI development tools, with end-to-end ownership.

The role requires strong Java/Spring Boot experience, API-first mindset, and collaboration with global squads. Citi offers hybrid working, mentorship, learning opportunities, and competitive benefits.

Qualifications

Significant hands-on experience with Java and Spring framework.
Proven experience of API-first solutions (REST, GraphQL).
Experience designing and implementing large-scale platforms using microservices.
Experience in Agile/Scrum delivery teams with incremental releases.
Database design in RDBMS and NoSQL (desirable).

Responsibilities

Design and build business requirements on microservices platform used by senior bankers globally.
Implement Java/Spring Boot backend and MongoDB/MSSQL data layer.
Apply SDLC practices with unit/integration tests and CI/CD.
Leverage AI coding agents for accelerated engineering.
Review requirements and deliverables for security and production readiness.
Communicate with Product & Engineers in global squad on integrations.
Learn and apply Banking domain knowledge.