Java Software Engineer (Gloucester)

Java Developer – GLoucester | Permanent | On-Site | 4-day Flex WorkingDefence, Cyber & Intelligence Programmes | Competitive BenefitsAbout the OpportunityA leading defence and cybersecurity organisation is seeking Java Developers at all levels to join their growing team, working across a range of cutting-edge projects in the national security, cyber defence, and intelligence sectors. You’ll play a key role in developing advanced DevSecOps solutions that protect critical digital infrastructure, while benefiting from a strong culture of flexibility, innovation, and continuous learning.Key ResponsibilitiesPlan, conduct and coordinate software development activities through the full lifecycleDesign, code, test, and debug high-quality software systemsCollaborate with stakeholders to interpret and deliver customer requirementsAnalyse system capabilities to resolve queries related to program intent, output requirements, input data acquisition, and control techniquesDevelop operating instructions and maintain thorough documentation of programme developmentSupport the implementation and maturation of CI/CD pipelines, particularly for cloud-based deploymentsWork within Agile Scrum teams and contribute to continuous improvement initiativesMentor and support junior engineers where appropriateEssential Skills and ExperienceProficient in Java (latest versions) and PythonStrong development experience on Linux platformsKnowledge of unit testing and mocking frameworks, particularly JUnit 5.x (Jupiter)Familiar with Git version control and GitLab CI/CD pipelinesHands-on experience with Agile (Scrum) methodologiesDatabase experience with Oracle and/or MongoDBExperience using the Atlassian suite: Bitbucket, Jira, and ConfluenceDesirable SkillsKnowledge of Apache NiFiFront-end development with React (JavaScript/TypeScript)Working knowledge of Elasticsearch and KibanaExperience developing for cloud environments, particularly AWS (EC2, EKS, Fargate, IAM, S3, Lambda)Understanding of Hibernate ORMExperience building microservice or serverless architecturesKnowledge of migrating on-premise applications to cloud environmentsLocation and Work StyleGloucester4-day flex working pattern to support excellent work-life balance.Security ClearancePlease note that applicants must be eligible for eDV clearance to be considered. If you\’re passionate about software innovation, cloud-native architectures, and making a real impact in national security, this is an outstanding opportunity to grow your career.