Full job descriptionSenior 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.