Senior 3rd‑Line Security Engineer – Onsite Incident Leader

BT Group in Derby is seeking a 3rd Line Security Specialist to provide lead technical support on complex security incidents, working onsite at a secure customer facility.

The role requires hands-on expertise across Cisco/Checkpoint/F5, strong incident management, and the ability to coordinate with designers and wider teams; eligibility for Government Security Clearance to SC UK Eyes Only Level is essential.

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