Senior Software Engineer

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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 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 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
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Location:
Manchester
Job Type:
FullTime
Category:
Engineer, Software Engineer, Senior, Engineering, Software

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