Senior Azure Security Engineer & SIEM Lead

Company: Flagstone Group Ltd
Apply for the Senior Azure Security Engineer & SIEM Lead
Location: London
Job Description:

Flagstone Group Ltd is seeking a Senior Security Engineer to own parts of the security stack across cloud security, detection tooling, and incident response within our Azure estate. You’ll harden the environment with hands-on Sentinel, Defender for Cloud, and Terraform or Bicep, and coordinate penetration testing with engineering teams.

A growth mindset and the ability to communicate security risks to product teams are essential in our fintech context.

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Posted: August 10th, 2026