Java Developer, Officer

Citigroup
📍 Belfast, United Kingdom, United Kingdom 💼 Full-time 🕒 Posted March 02, 2026

Job Description

We are looking for a highly skilled and experienced Senior Java Developer to join our engineering team. The ideal candidate will be responsible for designing, developing, and maintaining high-performance, scalable, and resilient applications using modern Java technologies. This role requires strong technical expertise, a passion for problem-solving, and the ability to contribute significantly to our product development lifecycle, from concept to deployment. The Senior Java Developer will also mentor junior team members and contribute to architectural discussions.

**Key Responsibilities**

+ Design, develop, and maintain robust, scalable, and high-performance backend applications and services using Java and the Spring ecosystem (Spring Boot, Spring Framework).
+ Write clean, efficient, well-documented, and testable code following best practices and design patterns.
+ Collaborate with product owners, architects, and other developers to understand requirements, defi...

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Job Details

  • Location Belfast, United Kingdom
  • Job Type Full-time
  • Category other-general
  • Posted Date March 02, 2026
  • Application Deadline March 07, 2026