Senior Java Microservices Engineer - Hybrid

Citi; Belfast City District; Hybrid; GBP 70,000 - 100,000; Full time

Benefits offered by this job

27 days annual leave

Discretionary annual bonus

Private Medical Care & Life Insurance

Employee Assistance Program

Pension Plan

Paid Parental Leave

Learning & development resources

Job summary

Citi is seeking a Senior Java Developer to join the Risk Data Team in a hybrid Belfast setting. You will build high‑impact software, design robust microservices, and own critical data pipelines that support risk management across the organization.

Join a globally distributed team focused on clean code, scalable solutions, and mentorship, with opportunities to influence architectures and improve outcomes while benefiting from a flexible hybrid model.

Qualifications

• Experience delivering complex software solutions in enterprise environments.
• Strong knowledge of Java/J2EE, Spring Boot, RESTful services (XML, JSON).
• Proven experience with Microservices architecture and modern data platforms.
• Hands-on Core Java, multi-threading, Collections, and Spring Framework expertise.
• Solid understanding of software engineering best practices, OOP, design patterns, and CI/CD.

Responsibilities

• Develop and implement complex software solutions using Java/J2EE, Spring Boot, and RESTful services.
• Design, develop, and maintain robust microservices with architectural best practices.
• Apply hands-on Core Java, including multi-threading and the Collections framework.
• Utilize Spring Framework effectively for application development.
• Create and optimize SQL queries; maintain data access layers.
• Contribute to CI/CD pipelines and manage source code with Git/Bitbucket.
• Promote clean coding and use Sonar for code quality; implement tests (unit/integration/functional).
• Lead, mentor, and manage a team of application developers to foster excellence.

Skills

Java/J2EE

Spring Boot

RESTful services

Microservices

Core Java

Multithreading

Collections framework

CI/CD

Git/Bitbucket

SonarQube

OOP

Design patterns

Testing (unit/integration)

Tools

Git/Bitbucket

Docker

Kubernetes

OpenShift

Jira

SonarQube

Job description

Citi is seeking a Senior Java Developer to join the Risk Data Team in a hybrid Belfast setting. You will build high‑impact software, design robust microservices, and own critical data pipelines that support risk management across the organization.

Join a globally distributed team focused on clean code, scalable solutions, and mentorship, with opportunities to influence architectures and improve outcomes while benefiting from a flexible hybrid model.