Companies House is seeking a Senior Infrastructure Engineer specializing in Platform DevOps to support and enhance their cloud-based infrastructure. The role involves designing, implementing, and maintaining scalable, secure platforms using technologies such as AWS, Kubernetes, and CI/CD pipelines. Candidates should have extensive experience in infrastructure automation, container orchestration, and cloud services to drive continuous improvement and operational excellence. This is a full-time position located in Cardiff, offering an opportunity to contribute to national digital services.