Infrastructure Design Architect

Position Description At CGI, we’re shaping the future of cloud transformation — delivering secure, high-performing, and scalable infrastructure that enables clients to innovate and grow. As a key member of our UKNA1 Architecture team, you’ll design and deliver cutting-edge multi-cloud solutions that underpin business success and drive measurable impact. You’ll work at the intersection of strategy and technology, translating complex requirements into powerful, future-ready architectures that help clients reimagine what’s possible. In this role, you’ll have the freedom to take ownership of outcomes, explore new ideas, and thrive within a supportive community that values collaboration and creativity. 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 is a hybrid position. Your Future Duties And Responsibilities In this role, you will lead the design and implementation of secure, scalable cloud and hybrid infrastructure solutions that meet complex business challenges. You’ll shape technical strategy and drive solution design from pre-sales through delivery, ensuring that CGI clients receive architectures optimised for performance, cost, and reliability. You’ll also guide and mentor others, fostering innovation and helping our teams continually evolve to meet emerging cloud opportunities. You’ll partner closely with project managers, business stakeholders, and technical teams to align infrastructure with business outcomes. This role allows you to take ownership of cloud architecture direction while being supported by a collaborative network of experts committed to achieving excellence together. In addition to shaping new cloud solutions, you will play a pivotal role in the delivery and operational support of existing (“in-situ”) cloud estates across client environments — ensuring seamless continuity, reliability, and compliance across live operations. Operational Oversight: Support lifecycle management of existing multi-cloud and hybrid estates, ensuring reliability, performance, and compliance with CGI and client standards. Service Continuity: Collaborate with delivery and service management teams to maintain uptime and optimise cost efficiency across live cloud environments. Performance Optimisation: Identify opportunities to enhance infrastructure resilience, scalability, and security within existing estates. Incident