Senior Information Security Tester – Penetration Testing

Sainsbury’s Group is seeking a Senior Information Security Tester to deliver rigorous penetration testing across internal and external systems. You will produce detailed, actionable reports and support improvements to our vulnerability processes.

The role requires strong OWASP knowledge, practical infrastructure testing experience on Windows and Linux, and the ability to mentor colleagues. Join a team protecting the organisation’s systems, data and customers at scale.

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