Java Software Engineer (Belfast)

Are you a skilled Java Software Engineer looking to build next-generation infrastructure platforms? We're hiring on behalf of our client – a leading technology provider serving some of the biggest names in global financial services, based in Belfast.

Join a high-calibre, global team developing resilient, performant microservices powering critical systems across the sector.

Key Responsibilities:

• Design, implement, and support robust microservices and APIs
• Work collaboratively across a global development team while also taking full ownership of components and services
• Drive product lifecycle from design to delivery, ensuring maintainability and performance
• Solve complex engineering challenges at scale, with a focus on clean, efficient, and tested code

Essential Skills & Experience:

• 3+ years’ experience in Java (Java 8 or above)
• Strong understanding of microservices architecture and platform engineering
• Proficiency in Spring, Micronaut , or equivalent Java frameworks
• Experience with Relational and NoSQL databases (e.g., PostgreSQL, MongoDB)
• Familiarity with unit testing frameworks (e.g., JUnit, Spock)
• Experience working with build tools such as Gradle or Maven
• Comfortable using Docker in development environments
• Proven ability to write clean, maintainable, testable code
• Passionate about learning and applying new technologies

Desirable Skills:

• Experience with Reactive/Functional programming (e.g., RxJava, Project Reactor)
• Messaging systems (e.g., Kafka, RabbitMQ )
• Familiarity with CI/CD tools (e.g., TeamCity, Jenkins)
• Scripting experience (e.g., Groovy, Ruby, Python )
• Knowledge of networking protocols (TCP, UDP,
• RESTful API design, WebSockets
• Familiarity with Git for version control
• Exposure to Grails Framework
• Frontend basics (e.g., JavaScript, Bootstrap, jQuery )