Senior Java Applications Developer

Citi Group; Belfast City District; Hybrid; GBP 65.000 - 90.000; Vollzeit

Benefits dieser Stelle

Hybrid work model

Learning & development resources

Wellbeing & work-life balance

Competitive financial benefits & bonus

Zusammenfassung

Citigroup Inc. in Belfast is seeking a Senior Java Applications Developer to help build and modernize a centralized event platform for corporate actions.

You will design and implement robust Java microservices, RESTful APIs, and data-driven components within a strict governance framework. This hybrid role offers three days in the office and two remote, with exposure to CI/CD pipelines, Git versioning, and Sonar quality checks.

Qualifikationen

• Experience designing and implementing complex software solutions.
• Strong knowledge of Java/J2EE, Spring Boot, and RESTful services (XML, JSON).
• Proven experience with microservices architecture and Spring Framework.
• CI/CD pipelines experience and Git expertise.
• Strong problem-solving and communication skills.

Aufgaben

• Develop and implement complex software solutions using Java/J2EE, Spring Boot, and RESTful services.
• Design, develop, and maintain robust microservices.
• Create and optimize SQL queries.
• Apply CI/CD pipelines and ensure automated quality checks.
• Write unit, integration, and functional tests and contribute to code reviews.
• Collaborate with cross-functional teams to deliver scalable software.

Kenntnisse

Java/J2EE

Spring Boot

RESTful web services

Microservices Architecture

Core Java

Multi-threading

Collections framework

CI/CD pipelines

Git

SonarQube

Unit/Integration/Functional testing

Clean coding / OOP

Communication skills

Tools

Git

SonarQube

Docker

Kubernetes

OpenShift

Jira

Jobbeschreibung

## Senior Java Applications DeveloperApply: Hybrid: Belfast United Kingdom: Full time: Posted Today: 261002575**About the team:** **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. **What you will do:*** 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. **Key Skills and Experience required:*** 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. **What we can offer:** 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.* A hybrid working model with 3 days in the office and 2 days working remotely, giving you flexibility alongside team connection.* Exposure to complex, high-value commercial and financial decisions that directly shape vendor strategy at a global scale.* Access to learning and development resources that support your growth in data analytics, financial governance, and emerging technologies.* The opportunity to work across finance, sourcing, and technology functions, broadening your professional network and cross-functional expertise.* Wellbeing support and work-life balance initiatives designed to help you perform at your best.* Competitive financial benefits and a rewards package aligned to your experience and contribution. Apply today to bring your data and governance expertise to a role where your analysis shapes commercial outcomes at one of the world's leading financial institutions. **If you are a highly motivated, results-oriented individual with a passion for technology risk management, we encourage you to apply!**#LI-OD1 ------------------------------------------------------## **Job Family Group:**Technology------------------------------------------------------## **Job Family:**Applications Development------------------------------------------------------## **Time Type:**Full time------------------------------------------------------## **Most Relevant Skills**Please see the requirements listed above.------------------------------------------------------## **Other Relevant Skills**For complementary skills, please see above and/or contact the recruiter.------------------------------------------------------*Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.**If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review* *Accessibility at Citi.* *View Citi’s EEO Policy Statement and the Know Your Rights poster.*