Senior Platform Engineer AWS & Kubernetes

Position Description Join CGI as a Platform Engineer and help shape the secure, scalable foundations that enable innovative AI services to move from development into operational environments. You’ll take ownership of meaningful engineering challenges, using AWS, Kubernetes and automation to create reliable platforms that accelerate delivery and generate lasting value for our clients. Working alongside collaborative teams and drawing on CGI’s wider expertise, you’ll have the freedom to explore creative approaches, influence technical direction and turn ideas into robust solutions. This is an opportunity to make a tangible impact on complex programmes while developing your expertise in a supportive environment where your contribution and career can grow. 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 an office based role. Your future duties and responsibilities In this role, you will help design, build and operate the platform capabilities that support the development, integration and hosting of AI services. You’ll take ownership of platform engineering activities across AWS and Kubernetes environments, helping teams develop efficiently and deploy securely into operational environments. Working collaboratively with engineering and client teams, you’ll apply your expertise to improve automation, reliability and consistency across environments. You’ll have the opportunity to introduce new ideas, solve complex engineering challenges and continuously enhance the tools and processes that enable successful delivery, with support from CGI’s wider community of technical experts. Design & Build: Develop and enhance scalable platform capabilities using AWS and Kubernetes. Deploy & Operate: Deploy, manage and maintain applications running on Kubernetes and AWS EKS. Develop & Improve: Contribute to Python applications, utilities and engineering tools that improve platform capabilities. Automate & Optimise: Build and improve CI/CD pipelines to enable reliable, repeatable and efficient delivery. Integrate & Enable: Support the integration and hosting of AI services across client environments. Collaborate & Innovate: Work with engineering teams to solve technical challenges and continuously improve platform design and delivery. Own & Deliver: Take responsibility for high-quality engineering outcomes while contributing to the technical direction of the platform. Required Qualifications To Be Successful In This Role You should bring hands-on platform engineering experience and be comfortable working with cloud-native technologies in complex environments. You’ll combine practical AWS and Kubernetes expertise with Python and CI/CD knowledge, alongside the ability to collaborate effectively, take ownership of technical challenges and develop creative solutions with the support of a wider engineering community. Kubernetes: Proven experience deploying and managing applications on Kubernetes. AWS: Strong practical experience working with AWS, including operating workloads on Amazon EKS. Python: Ability to contribute to the development of applications, automation or engineering tools using Python. CI/CD: Hands-on experience using and managing CI/CD tooling and automated delivery pipelines. Platform Engineering: Experience building, operating or improving reliable cloud-based platforms. Collaboration: Ability to work effectively with multidisciplinary engineering teams and contribute to shared technical outcomes. Security Clearance: Hold UK Security Clearance or be eligible to undergo the required clearance process. Together, as owners, let’s turn meaningful insights into action. 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. That same commitment to fairness extends to how we use technology. To support our recruitment team, AI tools may be used to help assess applications though they never replace human judgement. All hiring decisions remain entirely in the hands of our recruitment professionals. Come join our team—one of the largest IT and business consulting services firms in the world.