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# Infrastructure Tester

- **Company:** CBS Butler Limited
- **Location:** Basingstoke, UK
- **Salary:** £117,000.0 - £130,000.0
- **Contract:** Temporary contract
- **Skills:** Microsoft Windows, Software Bug Management, Cloud Computing, Linux, Information Systems Security Architecture Professional, Linux Servers, Network Architecture, Zero Trust Network Access, Systems Integration, Test Scripts
- **Published:** July 25, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5812195971

## About the Role

* 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.

## Description

* 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, 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.


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