> Markdown version of [/jobs/ext/4101481-senior-aws-platform-engineer-sc-cleared](https://www.wearedevelopers.com/jobs/ext/4101481-senior-aws-platform-engineer-sc-cleared). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior AWS Platform Engineer - SC Cleared - **Company:** CGI Group Inc. - **Location:** London, United Kingdom - **Experience:** Expert - **Salary:** £71,463 - **Contract:** Permanent contract - **Skills:** Amazon Web Services, Microsoft Azure, Bash Shell, Cloud Computing, Cloud Engineering, Python (Programming Language), Systems Development Life Cycle, Systems Integration, Cloud Platform System, AWS Lambda, Gitlab, Gitlab-ci, Kubernetes, Infrastructure Automation Frameworks, Terraform, Devsecops, Serverless Computing, Docker - **Published:** October 23, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5940265161 ## About the Role * Strong experience designing, building and operating cloud platforms, ideally using AWS. * Hands-on expertise with Terraform, Infrastructure as Code and reusable infrastructure modules. * Strong understanding of AWS services, cloud-native architectures and platform engineering principles. * Proven experience developing and maintaining CI/CD pipelines using GitLab and GitLab CI/CD. * Practical experience with Docker and containerised applications. * Experience developing or supporting serverless architectures using AWS Lambda and managed cloud services. * Strong scripting and automation skills using Python, Bash or similar languages. * Ability to produce clear, high-quality technical designs and documentation. * Experience working within agile engineering teams and contributing to engineering standards. * Strong communication, collaboration and problem-solving skills, with the ability to influence technical decisions. * A proactive approach to mentoring, knowledge sharing and continuous professional development. Desirable experience: * Experience with AWS container services, including ECS or EKS, or familiarity with Kubernetes. * Designing, implementing or managing multi-account AWS environments. * Knowledge of DevSecOps practices and integrating security throughout the software delivery lifecycle. * Strong experience with Microsoft Azure or other cloud platforms, particularly where AWS experience is limited. * Previous experience delivering solutions within secure, government, defence or highly regulated environments., * Amazon Web Services Cloud * Docker * GitLab * Python * Terraform Together, as owners, let's turn meaningful insights into action. ## Description In this role, you'll take ownership of designing, building and optimising secure cloud platforms that support critical government and defence programmes. Working primarily with AWS, Terraform and modern automation technologies, you'll develop resilient, scalable infrastructure and help accelerate the delivery of innovative digital solutions. You'll have the opportunity to tackle complex engineering challenges, influence architectural decisions and introduce improvements that enhance security, reliability and operational efficiency. As a senior member of an agile engineering team, you'll collaborate with talented colleagues, mentor fellow engineers and help shape platform engineering standards. You'll be encouraged to explore new approaches, share your expertise and drive continuous improvement, with access to learning opportunities and a supportive environment that enables you to grow your technical capabilities and make a meaningful impact. Key responsibilities: * Design & Deliver: Architect, build and maintain secure, scalable AWS cloud platforms supporting mission-critical applications and services. * Automate & Optimise: Develop reusable Terraform modules and implement Infrastructure as Code to improve consistency, efficiency and scalability. * Build & Integrate: Design, maintain and enhance CI/CD pipelines using GitLab to enable reliable, automated software delivery. * Engineer & Innovate: Develop and support containerised and serverless solutions using Docker, AWS Lambda and other AWS managed services. * Secure & Strengthen: Embed security, resilience and operational best practices throughout the platform engineering lifecycle. * Script & Streamline: Use Python, Bash and automation techniques to simplify operations, reduce manual effort and improve platform performance. * Collaborate & Influence: Work across multidisciplinary agile teams, producing technical designs and helping guide engineering decisions. * Mentor & Develop: Support fellow engineers, share technical knowledge and contribute to consistent engineering standards and best practices. * Improve & Evolve: Identify opportunities to adopt emerging technologies, enhance platform capabilities and drive continuous improvement. To succeed in this role, you'll bring strong hands-on experience in cloud platform engineering, with expertise in AWS, infrastructure automation and modern software delivery practices. You'll be comfortable solving complex technical challenges, collaborating across engineering teams and taking ownership of high-quality solutions. We're looking for someone who combines technical expertise with curiosity, creativity and a commitment to continuous improvement. You'll be supported in expanding your capabilities, and we welcome applications from candidates who meet most, rather than every, requirement.