Infrastructure Test Engineer (DV Security Clearance)

Join CGI's Space, Defence and Intelligence business unit and play a critical role in delivering secure, resilient infrastructure solutions that support nationally significant programmes. As a Manual Infrastructure Tester, you will work within high-performing Agile delivery teams, collaborating with developers, infrastructure engineers, and project managers to ensure the successful testing and integration of complex systems across secure environments. This role offers the opportunity to contribute to high-impact projects while working with modern infrastructure technologies across Windows and Linux platforms. At CGI, you'll be empowered to take ownership, contribute innovative ideas, and grow your expertise within a collaborative and supportive team environment., In this role, you will support the testing, integration, and validation of secure infrastructure solutions across complex environments. Working closely with multi-disciplined engineering teams, you will execute manual tests, investigate failures, raise and manage defects, and contribute to the successful deployment of infrastructure components. You will play an important role in ensuring the reliability, performance, and security of systems supporting critical programmes. You will also contribute to subsystem integration and end-to-end testing activities, helping to drive continuous improvement across Agile delivery teams. Your experience with infrastructure technologies, networking, and secure systems will enable you to make a meaningful contribution to project delivery and operational success.

• Execute & Maintain manual infrastructure tests using approved project tools
• Investigate & Resolve test failures through detailed analysis and defect management
• Develop & Support integration and end-to-end test scripts for subsystem validation
• Collaborate & Deliver alongside developers, infrastructure engineers, and project managers
• Validate & Assure secure infrastructure components across Linux and Windows environments
• Support & Improve testing activities across IDAM, RBAC, PKI, monitoring, audit, and patching solutions
• Contribute & Enhance Agile and SAFe delivery practices within engineering teams
  
  To succeed in this role, you should have proven experience in infrastructure and integration testing within secure or complex technical environments. You will have strong knowledge of Linux and Windows operating systems, good understanding of networking fundamentals, and experience working within Agile delivery teams. A collaborative mindset, strong analytical skills, and current High Level Security Clearance are essential.
• Current High Level (HL) Security Clearance
• Proven experience in manual testing and infrastructure testing
• Experience integrating and testing sub-systems within complex environments
• Strong knowledge of Windows and Linux operating systems
• Good understanding of IT infrastructure, networking, servers, and virtualisation technologies
• Experience using Test Management Tools
• Experience testing IDAM/RBAC, PKI, monitoring, audit, or patch deployment solutions
• Strong problem investigation and analysis skills
• Experience working within Agile or SAFe delivery environments
• ISTQB Foundation Certification desirable
  
  Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you'll reach your full potential because…
You are invited to be an owner from day 1 as we work together to bring our Dream to life. That's why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company's strategy and direction. Your work creates value. You'll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise. You'll shape your career by joining a company built to grow and last. You'll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons. Come join our team-one of the largest IT and business consulting services firms in the world.Discover CGI London, England, United Kingdom > 1000 employees IT services We are a global business with 91,500 professionals across hundreds of locations worldwide, providing end-to-end IT and business process services that drive our clients' businesses. In the UK alone, we have around 6,000 member-partners working across 19 towns and cities, doing everything from writing complex code to designing sophisticated software solutions. The work we do powers some of the most ambitious projects that touch the lives of many. Our approach sets us apart, characterised by our proximity model, international presence, expertise, and operational excellence. We organise our operations within metro markets where our clients have concentrated footprints, empowering our local teams to build trusted, in-person relationships. As you build your career here, you'll develop your skills, share your insights, and work side-by-side with colleagues and clients on innovative solutions that address the most complex issues. Our commitment to ownership, flexibility, and being approachable makes us easy to do business with. Join us, and together, as owners, let's turn meaningful insights into action to meet the needs and balance the interests of our clients, shareholders, communities, and each other. Benefits: - Insurance coverage - Medical benefits - Pension plan - Member Assistant Programme - Check4Cancer - Flexible time off - Share Purchase Plan - Member discounts - Dental benefits - Vision benefits - Profit Participation Plan - Health and Wellbeing Programme

CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named a UK 'Best Employer' by the Financial Times. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% matching) which makes you a CGI Partner not just an employee. We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant. Join us and you'll be part of an open, friendly community of experts. We'll train and support you in taking your career wherever you want it to go. Due to the secure nature of the programme, you will need to hold UK Security Clearance or be eligible to go through this clearance. This position will work full time on site near Basingstoke.