Mid and Senior Java Developers

MCS Group is working with a major technology-led organisation as it builds a new engineering capability in Belfast. This is a significant period of growth, with multiple opportunities available for experienced Java Developers across mid-level, senior and technical leadership grades.You will join a collaborative engineering environment, delivering modern software solutions for large, complex projects. The work offers plenty of technical variety, combining hands-on development with opportunities to influence design, improve engineering practices and support other developers.The roleDesign and build scalable backend applications and services using modern Java.Develop secure REST APIs and integrations for complex, business-critical platforms.Help modernise existing systems and move applications towards cloud-native architectures.Contribute to technical design, architecture discussions and engineering standards.Build automated tests and support applications from development through to production.Diagnose performance issues and resolve complex live-service incidents.Work alongside engineers, architects, testers and non-technical stakeholders.At the more senior level, provide technical direction, mentor developers and take ownership of delivery.What you needStrong commercial Java development experience.Experience with Spring or Spring Boot.A good understanding of object-oriented development, SOLID principles and common design patterns.Experience designing and developing REST ..... full job details .....