Contract Senior Security Engineer: Cloud, SIEM & IR

Company: Flagstone Group Ltd
Apply for the Contract Senior Security Engineer: Cloud, SIEM & IR
Location: London
Job Description:

Flagstone Group Ltd is seeking a senior security engineer to own cloud security, detection tooling, and incident response across Azure. The role focuses on sustaining and improving our security stack, coordinating pentests, and guiding remediation with engineering squads.

You will work in a fintech context, applying Terraform/Bicep for security tooling, and contribute to secure data handling and AI workflow protections. This is a contract role with immediate impact.

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Posted: July 29th, 2026