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# Java Applications Developer

- **Company:** Citigroup Inc.
- **Location:** Belfast, UK (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, Java (Programming Language), Artificial Intelligence, JIRA, Cloud Computing, Software Quality, Continuous Integration, Software Design Patterns, Java Platform Enterprise Edition (J2EE), Spring Framework, JSON, Object-Oriented Software Development, OpenShift, Software Construction, Software Engineering, Software Systems, SONAR (Symantec), Working Model 2D, Extensible Markup Language (XML), Multithreading, Spring-boot, Git, Kubernetes, Data Analytics, Bitbucket, Restful APIs, Software Version Control, Docker, Microservices
- **Published:** October 29, 2026
- **Apply:** https://citi.wd5.myworkdayjobs.com/2/job/Belfast--United-Kingdom/Senior-Java-Applications-Developer_261002575/apply

## About the Role

* Experience in developing and implementing complex software solutions.
 * Strong knowledge of Java/J2EE, Spring Boot, and RESTful web services (XML, JSON).
 * Proven experience working with Microservices Architecture.
 * Hands-on experience with Core Java, Multi-threading, Collections framework, and Spring Framework.
 * Solid understanding of software engineering best practices, OOP, design patterns, and CI/CD pipelines.
 * Experience with source code management tools (Git).
 * Understanding of clean coding principles and code quality measurements using tools like Sonar.
 * Demonstrated ability to design and implement unit, integration, and functional tests.
 * A strong, solution-driven mindset with the ability to analyze complex problems, devise strategic solutions, and lead their implementation.
 * Good written and verbal communication skills.

Advantages:

 * Experience with AI technology (Devin, Co Pilot)
 * Understanding of Cloud-native development principles.
 * Experience with Container Orchestration tools (Docker, Kubernetes, OpenShift, etc.).
 * Proficiency in using Jira for tracking tasks, managing backlogs, and participating in sprint cycles.

## Description

Event Master Central is Citi's centralized corporate action event repository and distribution platform that consolidates corporate action announcements and notifications from various vendors with cross-business operational process. As a critical pillar within the Master Reference Data (MRD) and the broader Citi Enterprise Data Organization (EDO), our team is responsible for modernizing and managing the end-to-end lifecycle of corporate Action events across the enterprise., * Develop and implement complex software solutions using Java/J2EE, Spring Boot, and RESTful web services.

 * Design, develop, and maintain robust microservices adhering to architectural best practices.
 * Apply hands-on expertise in Core Java, including multi-threading and the Collections framework.
 * Utilize Spring Framework effectively for application development.
 * Work extensively in creating and optimizing SQL queries.
 * Ensure adherence to software engineering best practices, object-oriented programming (OOP) principles, and design patterns.
 * Contribute to the continuous integration and continuous delivery (CI/CD) pipelines.
 * Manage source code effectively using tools such as Git or Bitbucket.
 * Promote and apply clean coding principles and maintain high quality using tools like Sonar.
 * Design and implement comprehensive unit, integration, and functional tests to ensure solution quality.
 * Analyze and solve complex technical problems efficiently.
 * Work with a team of application developers, fostering a culture of excellence, collaboration, and continuous improvement., At Citi, you will work at the intersection of data, finance, and commercial strategy, contributing to decisions that have real impact across a global organization. This role offers meaningful autonomy, cross-functional collaboration, and the opportunity to grow your analytical and governance expertise within a high-performing team.