Java Developer – London | Permanent | 4-day Flex Working
Defence, Cyber & Intelligence Programmes | Competitive Benefits
About the Opportunity
A 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 Responsibilities
Plan, conduct and coordinate software development activities through the full lifecycle
Design, code, test, and debug high-quality software systems
Collaborate with stakeholders to interpret and deliver customer requirements
Analyse system capabilities to resolve queries related to program intent, output requirements, input data acquisition, and control techniques
Develop operating instructions and maintain thorough documentation of programme development
Support the implementation and maturation of CI/CD pipelines, particularly for cloud-based deployments
Work within Agile Scrum teams and contribute to continuous improvement initiatives
Mentor and support junior engineers where appropriate
Essential Skills and Experience
Proficient in Java (latest versions) and Python
Strong development experience on Linux platforms
Knowledge of unit testing and mocking frameworks, particularly JUnit 5.x (Jupiter)
Familiar with Git version control and GitLab CI/CD pipelines
Hands-on experience with Agile (Scrum) methodologies
Database experience with Oracle and/or MongoDB
Experience using the Atlassian suite: Bitbucket, Jira, and Confluence
Desirable Skills
Knowledge of Apache NiFi
Front-end development with React (JavaScript/TypeScript)
Working knowledge of Elasticsearch and Kibana
Experience developing for cloud environments, particularly AWS (EC2, EKS, Fargate, IAM, S3, Lambda)
Understanding of Hibernate ORM
Experience building microservice or serverless architectures
Knowledge of migrating on-premise applications to cloud environments
Location and Work Style
London
4-day flex working pattern to support excellent work-life balance.
Security Clearance:
Applicants must be eligible for DV/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.
Omega Resource Group is acting as an Employment Agency in relation to this vacancy
