X4 Technology

Full-Stack Developer (SC/DV Cleared)

Job Location

City of London, United Kingdom

Job Description

Job Title: Full Stack Software Engineer Location: London (Hybrid / Flexible) Type: Permanent or Contract Clearance: Active Enhanced DV or DV clearance preferred | SC clearance considered Salary: Competitive (based on experience & clearance level) We’re working with a specialist digital consultancy delivering secure, user-centred solutions across government and national security sectors. They’re looking for talented Full Stack Developers who can contribute to mission-critical systems - blending strong back-end development in Go with solid Front-End (FE) knowledge , particularly in React . This is an opportunity to work in highly secure environments on meaningful projects that directly impact national capabilities. You’ll collaborate within agile, multi-disciplinary teams that value innovation, technical excellence, and continuous improvement. Key Responsibilities Design, develop, and maintain full-stack applications using Go (Golang) and React Collaborate with designers, DevOps engineers, and product teams to build scalable, user-focused services Ensure high standards of software quality through code reviews, automated testing, and CI/CD practices Participate in architecture discussions and technical design sessions Integrate APIs and backend systems into modern, accessible front-end interfaces Contribute to continuous delivery pipelines and infrastructure-as-code practices Maintain awareness of security and performance in all aspects of delivery Key Requirements Active Enhanced DV clearance (preferred) – essential for access to secure projects (Can be regular DV or SC) Proven experience as a Full Stack Software Engineer Strong knowledge of Go (Golang) for backend development Solid Front-End experience – ideally with React , TypeScript, and modern UI patterns Experience working within Agile / DevOps delivery environments Understanding of secure coding practices and working within classified or government settings Excellent problem-solving skills and a proactive approach to technical challenges Strong communication and collaboration skills, comfortable working in cross-functional teams Desirable: Exposure to cloud platforms (AWS, Azure, or GCP) Experience with containerisation (Docker, Kubernetes) Familiarity with CI/CD tools and automation pipelines Understanding of infrastructure-as-code tools (Terraform, Ansible, etc.) If you have a background in the Government/Public Sector space and software development expertise, then please apply now!

Location: City of London, London, GB

Posted Date: 11/10/2025
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X4 Technology

Posted

November 10, 2025
UID: 5482874148

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