Full Stack Engineer (National Security)
3 days ago
Cheltenham
Full Stack Software Engineer Location: Cheltenham Business Unit: National Security Employment Type: Permanent or Contract Clearance: Must hold active UK Security Clearance About the Opportunity We are partnering with a leading Engineering business seeking experienced Full Stack Software Engineers to help deliver mission-critical capabilities that protect the UK’s security and prosperity. You will work at the intersection of advanced engineering and real-world problem-solving, developing cutting-edge products that counter evolving threats. Our teams work with leading technologies across AI/DS, Cyber, Cloud, DevOps/SRE, and Platform Engineering, supporting customers across the National Security, Defence and Intelligence community. With long-term programmes secured, this is an opportunity to join a high-growth environment with genuine impact. What You’ll Be Doing • Designing, developing, and delivering secure, high-quality software solutions., • Producing clean, test-driven code and ensuring adherence to engineering best practice., • Translating logical designs into physical implementations and producing detailed designs., • Integrating UI/API components with existing data stores and services., • Maintaining and enhancing architectural elements such as data ingest pipelines, data stores and REST APIs., • Collaborating with user researchers, product teams, and customers to align solutions with real user needs., • Participating fully in Agile ceremonies: sprint planning, daily stand-ups, demos, and backlog refinement., • Contributing to technical strategy, innovation, and tactical upskilling across emerging technologies. Key Skills & Experience • Strong commercial experience with Spring Boot and Java Enterprise development., • Front-end proficiency with React, Vue.js, or AngularJS., • Experience with modern testing frameworks and TDD., • Ability to work across UI, API, and data layers., • Technically curious and willing to adopt emerging tools and approaches., • Strong documentation and design discipline. Why Join? You’ll be part of a trusted engineering organisation with over 60 years of heritage in sensors, communications, cyber, AI and ML. They solve complex challenges that make a tangible difference protecting people, platforms and missions, today and for the future.