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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Back End Developer - DV Cleared - **Company:** CBS Butler Limited - **Location:** London, UK - **Salary:** £130,000.0 - £140,400.0 - **Contract:** Temporary contract - **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Business Process Model and Notation, Code Review, Data Architecture, Document Management Systems, Elasticsearch, Graph Database, Metadata, Microsoft SQL Server, MongoDB, NoSQL, Operational Data Store, Standard Sql, Message Oriented Middleware, Search Technologies, Secure Coding, Software Engineering, SQL Databases, Systems Integration, Workflow Management Systems, Data Logging, Cloud Platform System, Istio, Spring-boot, Event Driven Architecture, Amazon Relational Database Service, Containerization, Tanzu, Kubernetes, Restful APIs, Devsecops, Serverless Computing, Docker, Microservices - **Published:** August 11, 2026 - **Apply:** https://www.careerboard.com/pt/en/find-jobs-in-United-Kingdom/-FF2F27BF3761285F91/ ## About the Role * Proven software development experience within MOD, Defence, National Security or similarly secure environments. * Strong commercial Java development experience. * Expertise with Spring Boot. * Experience designing and developing RESTful APIs. * Strong SQL and NoSQL database experience. * Experience with Docker, Kubernetes or other container technologies. * Familiarity with CI/CD pipelines and DevSecOps practices. * Experience developing secure, scalable and maintainable Back End services. Desirable Experience * Experience with Camunda 8, Zeebe, BPMN or other workflow orchestration platforms. * OpenSearch or Elasticsearch. * MongoDB, Microsoft SQL Server, Amazon RDS or hybrid data architectures. * AWS, MODCloud, Tanzu, EKS or other cloud-native platforms. * Event-driven architectures and asynchronous messaging. * Istio, mTLS or service mesh technologies. * Knowledge of semantic search, knowledge graphs or ontology-based solutions. Mandatory Requirements * Current DV Security Clearance. * Ability to work onsite at an MOD location in London four days per week. * Previous experience delivering within MOD, Defence, Defence Intelligence, Strategic Command or wider National Security organisations. * Comfortable working with OFFICIAL-SENSITIVE and classified material where authorised. Ways of Working * Agile delivery within a multidisciplinary engineering team. * Close collaboration with Defence stakeholders, Product, Delivery and Engineering teams. * Secure-by-design approach with a strong focus on audit, traceability, resilience and assurance. * Building high-quality, maintainable services that support critical operational capabilities. What We're Looking For We're interested in Back End Developers who can demonstrate: * Successful delivery of secure software solutions within MOD or Defence environments. * Strong experience designing robust, scalable Back End services and APIs. * Excellent collaboration and communication skills across technical and non-technical teams. * A practical understanding of agile delivery and modern software engineering practices. * Awareness of secure system delivery, accreditation considerations and operational governance. ## Description We're looking for an experienced Back End Developer to help build the core services behind a next-generation Defence Intelligence platform. You'll develop secure, scalable microservices and APIs that support mission-critical operational workflows, working within a highly secure environment alongside multidisciplinary engineering teams. This is an excellent opportunity to contribute to the delivery of innovative digital capabilities supporting Defence operations. About the Programme This programme is delivering an AI-enabled Defence Intelligence capability designed to improve visibility of operational data, streamline complex workflows and support faster, more informed decision-making. Working as part of an agile delivery team, you'll help develop secure, cloud-native services that integrate with existing Defence platforms while following modern engineering and DevSecOps practices., * Design, develop and maintain Java-based microservices. * Build secure RESTful APIs supporting workflow, metadata, document management and integration services. * Develop workflow integrations using orchestration technologies where required. * Integrate with enterprise data sources, identity services and existing Defence systems. * Design and develop scalable persistence layers using SQL and NoSQL databases. * Contribute to cloud-native deployments, containerisation and CI/CD pipelines. * Implement secure coding practices, logging, monitoring and audit capabilities. * Participate in technical design sessions, code reviews and agile ceremonies. ## Related Videos - [Hosting a modern justice system](https://www.wearedevelopers.com/videos/332-hosting-a-modern-justice-system) - [Leveraging Real time data in FSIs](https://www.wearedevelopers.com/videos/806-leveraging-real-time-data-in-fsis) - [The Private AI Platform: Why Agentic Apps Need a Private Application Platform](https://www.wearedevelopers.com/videos/100162-the-private-ai-platform-why-agentic-apps-need-a-private-application-platform) - [Rate-limiting using eBPF and Istio: How to protect your SaaS customers from themselves](https://www.wearedevelopers.com/videos/100220-rate-limiting-using-ebpf-and-istio-how-to-protect-your-saas-customers-from-themselves) - [NoSQL Data Modeling for Front-end Developers](https://www.wearedevelopers.com/videos/297-nosql-data-modeling-for-front-end-developers) - [Get started with securing your cloud-native Java microservices applications](https://www.wearedevelopers.com/videos/123-get-started-with-securing-your-cloud-native-java-microservices-applications) ## Related Articles - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [7 Most Popular Web Developer Jobs in Europe](https://www.wearedevelopers.com/magazine/163-7-most-popular-web-developer-jobs-in-europe) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market)