QA Test Infrastructure Engineer (Contract)

QA Test Infrastructure Engineer - Cheltenham - Security Clearance Required - £600 P/Day Outside IR35

We're looking for an experienced QA Test Infrastructure Engineer to join a growing team delivering secure, high-impact technology for Defence and National Security customers. This is an opportunity to work on complex technical challenges where quality, resilience and security are critical.

Working alongside engineers, architects and DevSecOps specialists, you'll ensure infrastructure is thoroughly tested, validated and ready for deployment into highly secure production environments.

As a QA Test Infrastructure Engineer, you'll play a key role in assuring the quality of infrastructure and platforms throughout the delivery lifecycle. Your responsibilities will include:

• Creating infrastructure-focused test strategies and plans
• Designing and executing functional, integration, regression, resilience and security testing
• Validating Infrastructure as Code (IaC) deployments and physical infrastructure
• Provisioning and verifying test environments alongside DevSecOps teams
• Identifying risks, maintaining traceability and supporting governance activities
• Contributing to security assurance, compliance and accreditation activities
• Ensuring solutions are production-ready through robust automated and manual testing processes.

You'll have experience across infrastructure testing within secure or highly regulated environments and bring knowledge in areas such as:

• TCP/IP, DNS, DHCP, routing, switching, VLANs and firewalls
• Linux/Unix administration and troubleshooting
• Physical infrastructure including routers, switches and cabling
• Virtualisation platforms such as VMware
• Cloud platforms including AWS, Azure or GCP

• Terraform
• Ansible
• Kubernetes

• Jenkins, GitLab CI or GitHub Actions
• Infrastructure validation within automated pipelines
• Environment orchestration and automated readiness testing

• Secure-by-Design principles
• Identity & Access Management (IAM)
• Operating system hardening
• Network segmentation
• Experience supporting compliance, assurance or accreditation within regulated environments

Alongside your technical skills, you'll be someone who enjoys solving complex problems, takes ownership of your work and thrives in collaborative engineering teams.

Due to the nature of the work, applicants must be eligible to obtain UK Security Clearance.

QA Test Infrastructure Engineer - Cheltenham - Security Clearance Required - £600 P/Day Outside IR35