Join to apply for the Cloud Platform Engineer (DV Security Clearance) role at CGI.

Secure Innovation is part of CGI’s Space, Defence, and Intelligence business unit, focused primarily on the delivery of contemporary and innovative technical solutions for government agencies most challenging problems. Our teams work alongside our clients to help them understand how to exploit technologies to maintain competitive advantage. Our systems are engineered for performance, security, reliability and scalability; built with modern CI and CD tooling and techniques. We're looking for experienced Platform Architects who can design, build, and maintain the platforms upon which our products and services are developed and/or run.

CGI was recognised in the Sunday Times Best Places to Work List 2025 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 member 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.

Our roles are only available if you hold a UK Security Clearance and are a sole UK National due to the secure nature of the project. You will either hold a higher level clearance or be willing to obtain it. Any individual without security clearance is welcome to apply and will always be considered for this or wider opportunities in CGI, where appropriate.

Your future duties and responsibilities

The role offers fantastic opportunities to work on leading edge and bespoke technologies within an interesting and highly rewarding environment. We are heavily committed to developing our members and will provide excellent learning and development opportunities to ensure that your knowledge and skills keep pace with the evolving technology landscape. We engender a culture of innovation, collaboration and ownership; highly motivated self-starters thrive within our organisation. Although we would like candidates to have all of the mandatory requirements, we would consider high quality individuals who meet most of the criteria.

• You will provide the critical operational glue between the applications produced by the developers and the broader technical eco system, on-cloud and on-premise.

Essential Skills

• Be able to Interact with External Customers to understand and optimise for their legacy and future environment, bringing platform optimisations to minimise the amount of code that we need develop, and infrastructure that we need to deploy. Integrating with other systems and sub systems, where required.
• Able to understand Product Roadmaps and conceive the platforms that will be required to support them.
• Mentor our teams in technology, architecture and the delivery of new solutions.
• Build productive relationships with the developer, architecture, and in-service operations teams.
• Work on new projects and established live systems.
• Distributed System Architecture and Engineering
• Develop explainable conceptual and detailed design documentation, to a professional standard
• Bring a toolbox of actionable Design Patterns for Systems
• Enable Data Intensive Applications and their Streams/Message Flows
• Data Communications and Network Services including the common Enterprise and Service Provider protocols that enable packets to move on the Public Cloud
• Instrumentation and Control Engineering
• Public Cloud API and major Cloud Services (AWS, Azure, GCP) at an Associate/Professional level
• Cloud Native Architecture including Microservices
• Data Storage (Block, Object, SQL, NOSQL)
• Authentication, Authorisation, Identity Platforms
• Information Security, Privacy and Regulatory Compliance
• Performance Tuning, Hardening and Troubleshooting
• Problem Solving Skills to Methodically Find Faults and perform Root Cause Analysis
• Able to evaluate multiple courses of action, achieving goals by non-standard means if necessary
• System Regression
• Protocol Analysis
• Load Testing
• Availability and Resilience Optimisation
• Lockdowns and Basic Penetration Testing

Technologies

• Operating Systems and Virtualisation (Windows and Linux)
• Infrastructure as Code and Operational Automation (e.g. Terraform, Ansible)
• Message Queueing and Streaming Fabrics (e.g. AMQP, Kafka, Kinesis)
• Docker and Kubernetes
• Scripting (Shell and PowerShell)
• Basic Coding with a bias for Infrastructure (Python, Go, C#)
• IAM Policy and Authentication/Authorization schemes
• Web Services and REST API
• Databases and Storage Systems
• Development Build, Test, and Deployment Pipelines
• Observability and Monitoring (Open Telemetry, TIG and ELK stacks)