Senior Java Engineer
eDV or DV Cleared | £70,000-£90,000 | Cheltenham | National Security
Build software that enables analysts to turn complex, multi-source data into actionable intelligence.
We're looking for experienced Java Engineers to develop secure, cloud-native platforms supporting some of the UK's most sensitive National Security programmes. You'll work across large-scale data ingestion, distributed systems, analyst tooling and secure microservices, solving complex engineering challenges in highly regulated environments.
What you'll be building
- Java services and Apache NiFi data pipelines that ingest, enrich and process large-scale mission data
- Secure Spring Boot microservices deployed on OpenShift and Kubernetes
- Event-driven distributed systems using message brokers to connect services, data stores and processing pipelines
- Modern JavaScript applications and REST APIs that enable analysts to search, visualise and manage operational data
- Cross-domain solutions that move information securely between networks of different classifications
Technology
- Java, Spring Boot, REST APIs
- Apache NiFi, distributed data processing, message brokers
- Kubernetes, OpenShift, cloud-native architecture
- JavaScript, web API integration and authentication
- GitLab, CI/CD, SecDevOps, observability
- Database technologies and distributed systems
We're looking for
- Strong commercial Java development experience
- Experience building scalable microservices and distributed systems
- Spring Boot and cloud-native engineering expertise
- Experience working with Kubernetes or OpenShift
- A passion for clean, resilient software engineering
- Experience with Apache NiFi, secure environments or modern JavaScript is advantageous.
Why join?
Founded by engineers, this is a business where technical excellence comes first. You'll spend 10% of your time on learning and development, work alongside experienced engineers solving genuinely difficult problems, and build software that has a real operational impact.
Benefits include:
- 10% pension contribution
- 10% dedicated learning and development time
- Relocation support
- 37.5-hour working week
Current eDV or DV clearance, or recently active DV clearance, is essential.
If you're looking for a Java role where distributed systems, secure engineering and modern cloud technologies come together to solve real-world problems, we'd love to hear from you.
Senior Java Engineer in Cheltenham employer: Ncounter Careers
As a leading employer in the defence sector, we offer a dynamic work environment where innovation meets security. Our South West location provides a collaborative culture that values hands-on problem-solving and practical solutions, ensuring that our employees are not just contributors but key players in transformative projects. With a focus on professional growth and a commitment to employee well-being, we provide opportunities for skill enhancement and career advancement while working alongside experienced teams dedicated to delivering impactful results.
