Senior Software Engineer - National Security - SC Clearable Role: Senior Software Engineer Location: Cheltenham - Hybrid Work Clearance: SC Cleared / Eligible for SC Salary: £55,000 - £70,000 About the Role We're seeking talented Senior Software Engineers to join Agile delivery teams supporting a range of complex and high-impact Central Government and Critical National Infrastructure projects. You'll help design, develop, and deploy bespoke software solutions that deliver real-world mission value. You'll gain hands-on experience across the full software development lifecycle - from concept through delivery - working with modern technologies and open-source tools in secure cloud environments. What You'll Do Design, develop, and test robust software solutions using modern engineering practices. Work with a range of open-source libraries, frameworks, and components. Build and maintain CI/CD pipelines using tools such as GitLab, ensuring code quality and security. Deploy software systems across public (AWS) and private cloud environments. Engage in all stages of the software lifecycle - from requirements analysis to support and maintenance. Collaborate closely with clients and multidisciplinary teams in an Agile environment. About You We're particularly interested in Full Stack Engineers with commercial experience in: 4 years Java experience 4 years AWS experience Agile development environments. Building, testing, and deploying modern cloud-based applications. Previous consultancy experience is beneficial but not essential. You'll be proactive, collaborative, and motivated to work on meaningful, technically challenging projects that make a difference. Due to the nature of work, you must be willing and eligible to gain UK Security Clearance. To qualify for this, you must be a British passport holder and have lived permanently in the UK for the last 5 years. Culture & Benefits We take pride in creating an environment where everyone can thrive - valuing innovation, teamwork, and personal growth. Wellbeing: Free 24/7 counselling helpline and employee assistance programme Flexibility: Cheltenham office with hybrid working available Growth: Dedicated career coach to support personal and professional development Social: Regular team get-togethers, summer parties, and annual company away-days Onsite Allowances: Expenses provided for lunch and refreshments Apply If you're an ambitious Software Engineer looking to apply your skills to impactful, mission-focused projects, we'd love to hear from you. Java AWS React JavaScript TypeScript Kubernetes Docker SC SCCleared FullStack