Senior Software Engineer

Senior Software Engineer – Secure, Mission-Critical Systems\\n📍 On-Site | 💷 £42,700 – £64,100 | 🧳 Relocation Assistance Available\\nUK Citizenship Required | 🔐 Must Hold UK-Highest Level Security Clearance\\n\\nCode solutions that protect national security and shape tomorrow.\\n\\nMy client is seeking a Senior Software Engineer to contribute to high-impact projects across defence, intelligence, and cyber. You’ll design, build, and maintain critical backend and cloud-hosted systems using Java, Python, and/or JavaScript, collaborating within agile teams to deliver production-grade code.\\n\\nThis is an opportunity to work on deeply meaningful tech with complex engineering challenges in a secure, mission-focused environment.\\n\\n🔧 What You’ll Do:\\n\\n * \\n\\n Develop software features hands-on, including code reviews and peer feedback\\n\\n * \\n\\n Design scalable components aligned with the product roadmap and engineering standards\\n\\n * \\n\\n Break down large initiatives into agile deliverables and mentor junior team members\\n\\n * \\n\\n Support and manage CI/CD pipelines using modern DevOps tooling\\n\\n * \\n\\n Demonstrate working solutions to customers and internal stakeholders\\n\\n✅ What You’ll Bring:\\n\\n * \\n\\n Strong experience coding in Java, JavaScript, or Python\\n\\n * \\n\\n Familiarity with cloud platforms – AWS or Azure\\n Experience using tools like Jenkins, GitLab CI, Docker, Kubernetes, or OpenShift\\n\\n * \\n\\n Understanding of modern databases: SQL, Elasticsearch, MongoDB\\n\\n * \\n\\n Experience working in secure, regulated, or mission-critical environments\\n\\n * \\n\\n Ability to work on-site and already holding UK highest-level security clearance\\n\\n🌟 Nice to Have:\\n\\n * \\n\\n Exposure to secure software lifecycle and threat modelling\\n\\n * \\n\\n Agile/Scrum experience with iterative development\\n\\n * \\n\\n Familiarity with observability tooling, REST APIs, or microservices\\n\\n🧭 Why Join?\\n\\n * \\n\\n Work on tech with direct national security impact\\n\\n * \\n\\n 9-day fortnight option (every other Friday off)\\n\\n * \\n\\n Private healthcare, bonus schemes, training pathways\\n\\nBe part of a growing, inclusive community building the future of defence & intelligence software