Infrastructure tester

Salary: £117,000 - 130,000 per year Requirements: Active UK DV Clearance. Strong hands-on infrastructure testing experience within secure environments. Experience testing complex enterprise infrastructure solutions. Knowledge of Zero Trust principles and security architectures. Understanding of Windows and Linux server environments. Experience testing network infrastructure, authentication services and security controls. Familiarity with virtualised and cloud-based environments. Strong defect management and test reporting skills. Excellent stakeholder communication and documentation abilities. Responsibilities: Design and execute infrastructure test plans, test cases and test scripts. Validate Zero Trust architecture components and supporting infrastructure. Perform end-to-end testing across servers, networks, security controls and integrations. Verify deployments, configurations and environment readiness. Identify, document and track defects through to resolution. Support system integration, functional, non-functional and operational testing activities. Work closely with engineers, architects, security specialists and delivery teams. Produce clear test evidence, reports and assurance documentation. Contribute to continuous improvement of testing processes and quality standards. Technologies: Cloud Support Linux Network Security Windows More: We are seeking an experienced DV Cleared Infrastructure Tester to join a major secure government programme based onsite in Basingstoke, Hampshire, for an 18-month contract. This is a hands-on role focused on validating and assuring complex Zero Trust infrastructure environments supporting mission-critical services. The position is outside IR35 with a daily rate of £450 to £550. last updated 24 week of 2026