Penetration Tester – SC Cleared, Defence & Security Focus

Company: Thales Group
Apply for the Penetration Tester – SC Cleared, Defence & Security Focus
Location: Doncaster
Job Description:

Thales Group in the United Kingdom is seeking a hands-on penetration tester to cover Windows, Linux, mobile, web, and cloud environments. You will identify vulnerabilities, produce clear reports, and support high-security accreditation programmes.

The role requires CSTL certification and a strong grasp of testing methodologies, with a pathway toward technical leadership. UK national with SC clearance is required.

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Posted: September 13th, 2026