As a Control Tester, you will play a key role within the Information Security team at Thames Water, supporting the Control Testing & Assurance Manager in delivering cybersecurity control testing activities across multiple security domains. Working closely with cybersecurity leadership, service owners, and control owners, you will help ensure security controls are effectively designed, implemented, and operating as intended across the organisation.

This role contributes to the Cybersecurity Control Testing & Assurance programme by assessing control effectiveness, gathering evidence, and supporting the organisation’s wider security and compliance objectives. You will collaborate with stakeholders across the business to ensure testing activities are executed efficiently while maintaining high standards of documentation and reporting.

To be considered for this position, candidates must be eligible to obtain security clearance to a minimum of Counter Terrorist...