The Space, Defence and Intelligence business unit in CGI is a true IT Systems Integrator. We work, build, and operate bespoke, technically complex, mission-critical systems which help our clients keep us all safe and secure. We bring innovation to our clients using proven and emerging technologies, agile delivery processes and our deep expertise across the breadth of space, defence, intelligence, aerospace and maritime, all underpinned by our end-to-end cyber capability. We work collaboratively with global technology companies, cutting edge SMEs and academia to deliver the optimal solution for each client., As a Technical Application Architect, you will be responsible for designing, developing, and managing APIs, databases, and enterprise applications. You will play a crucial role in ensuring system integrity, performance optimisation, and seamless integration across platforms. Your expertise in API management, database operations, and enterprise system support will be essential to delivering high-quality, scalable solutions. In this role, you will collaborate with cross-functional teams to troubleshoot issues, optimise system performance, and implement best practices in application development. You will also provide technical leadership, mentoring team members on development methodologies, source control management, and problem-solving approaches to enhance efficiency and maintain codebase integrity. In this role, you will:

• Design, develop, and manage REST APIs (XML, JSON) to support enterprise applications.
• Conduct and manage database extractions and copies to ensure data integrity and availability.
• Collaborate on and support complex enterprise systems, troubleshooting issues and optimising performance.
• Guide and mentor team members on best practices in application development and problem-solving.
• Utilise Subversion/Git for source control and version management to maintain codebase integrity., Salary, remote work... Define all the criteria that are important to you.
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To excel in this role, you must have a strong technical background in application architecture, enterprise systems, and API development. You should have extensive experience designing and managing RESTful APIs, SQL databases, and enterprise-level applications. A problem-solving mindset and a willingness to challenge existing solutions while proposing innovative improvements are key to success. You should also have hands-on experience with Windows Server environments, Active Directory services, and source control management tools such as Subversion and Git. Familiarity with infrastructure engineering principles and healthcare applications will be considered an advantage. We're looking for a range of the following:
• Advanced proficiency in designing and managing RESTful APIs (XML, JSON).
• Strong experience with SQL for data management and query optimisation.
• Proven expertise in developing applications using C#/ASP.NET frameworks.
• Hands-on experience managing Windows Server environments and Active Directory services.
• Proficient in using Subversion/Git for source control and version management.
• Experience working on large-scale, enterprise-level systems.
If you are looking for a challenging and rewarding career within a globally recognised organisation, we would love to hear from you. Apply today and take the next step in your career with CGI!

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.

CGI was recognised in the Sunday Times Best Places to Work List 2024 and has been named one of the 'World's Best Employers' by Forbes magazine. 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 be a hybrid position, working out of our site in Leatherhead or Reading.