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£70000 GBPOnsite WORKINGLocation: Guildford, South East - United Kingdom Type: Permanent Software Engineer - National Security ProjectsLocation: Gloucester (On-site) Salary: Up to £70,000 + Excellent Package Clearance: Must hold or be eligible for DV (Developed Vetting) or minimum SC (Security Check)A unique opportunity to join one of the UK's leading technology organisations delivering software engineering projects at the heart of UK National Security. You'll work within a secure engineering environment on critical programmes supporting law enforcement, intelligence, and government departments. These roles offer challenging, meaningful work where your code genuinely makes a difference. What you'll be doing: Designing, developing, and deploying high-assurance software solutions within secure environments.Working across Java, Python, JavaScript, or TypeScript-based systems depending on project needs.Delivering in agile teams alongside cyber, data, and infrastructure specialists.Building scalable cloud-native applications and services in AWS.Contributing to continuous improvement and innovation across the engineering function. Experience required: Proven commercial software development experience in Java, Python, JavaScript, or TypeScript.Familiarity with AWS cloud services and best practices.Understanding of secure software engineering principles and CI/CD pipelines.Strong communication skills and ability to collaborate in multidisciplinary teams.Must be eligible for U