Senior Java Developer - Belfast

Synechron is looking for a Senior Java Microservices Developer to design, develop and maintain scalable, event-driven microservices using Java 17+ and Spring Boot. You will work with a modern tech stack, including Kafka, Docker, Kubernetes, and cloud-native tools, to deliver high-quality solutions that support a dynamic enterprise environment.

Key Responsibilities

• Design, develop, and deploy Java 17+ microservices using Spring Boot architecture
• Implement event-driven architecture utilising Kafka for real-time data streaming
• Collaborate with cross-functional teams to deliver robust APIs and microservices
• Maintain and optimise RDBMS (DB2, Oracle) and NoSQL databases (MongoDB, Reactor.js, Typescript)
• Create and manage cloud-native solutions with Docker, Kubernetes (Red Hat OpenShift), and Harness
• Write and maintain automated tests using Mockito and integrate with CI/CD pipelines
• Utilise version control systems like Git and Bitbucket for source management
• Build and manage project dependencies and builds using Gradle and Maven
• Develop reporting solutions with JasperReports
• Configure and monitor applications with Kibana and Elasticsearch
• Use Swagger for API documentation and testing
• Work within a containerised environment leveraging Load Balancers and other cloud infrastructure components
• Participate in continuous improvement initiatives, including code reviews, system tuning, and automation

Required Skills & Experience

• Proven experience with Java 17+ and Spring Boot Microservices
• Strong knowledge of event-driven architecture with Kafka
• Hands-on experience with relational databases (DB2, Oracle) and NoSQL databases (MongoDB, Reactor.js, Typescript)
• Familiarity with Docker, Kubernetes (Red Hat OpenShift), and Harness for container orchestration and CI/CD
• Experience with build automation tools such as Maven and Gradle
• Knowledge of RESTful API development, documented with Swagger
• Experience with Monitoring & Logging tools like Kibana and Elasticsearch
• Strong understanding of message brokers, load balancers, and cloud infrastructure
• Experience with testing frameworks, especially Mockito
• Ability to write clean, scalable, and maintainable code
• Excellent problem-solving and communication skills

This is a permanent role, working x3 days a week from the Belfast office (Paper Exchange). Strong market rates and excellent benefits.

Diversity Statement

S ynechron are proud to be an equal opportunity employer. Our Diversity, Equity, and Inclusion (DEI) initiative ‘Same Difference’ is committed to fostering an inclusive culture – promoting equality, diversity and an environment that is respectful to all. We encourage applicants from across diverse backgrounds, race, ethnicities, religion, age, marital status, gender, sexual orientations, or disabilities to apply. We offer flexible workplace arrangements, mentoring, internal mobility, learning and development programmes to support our global workforce. Empowerment and collaboration are at the core of how we operate.

All employment decisions at Synechron are based on business needs, job requirements and individual qualifications, without regard to the applicant’s gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law.