Senior Security Engineer (Defender, PurView)

Senior Security Engineer (Defender, PurView)

We’re looking for a Senior Security Engineer for our client in the data sector, based in London, on an initial 3 to 6 month contract paying up to £500 per day Outside IR35.

This role offers hybrid working with an expectation to attend the office 3 days per week.

You will focus on hands‑on remediation across Azure and endpoint environments, improving Defender for Cloud findings, closing vulnerabilities and strengthening security posture. The role is delivery‑led and ideal for someone who enjoys fixing issues rather than only advising.

Responsibilities

• Defender for Cloud, Defender for Endpoint and EASM
• Vulnerability remediation and Secure Score improvement
• Purview (DLP, sensitivity labels, insider risk)
• Compliance uplift for ISO 27001, SOC 2, GDPR and NIS2
• Configuration hardening, patching and policy deployment
• Entra ID, Conditional Access, PIM and cloud identity controls
• PowerShell and Microsoft Graph for automation

Nice to have: Sentinel exposure, Zero Trust knowledge, regulated‑sector experience.

Certifications required: AZ‑500, SC‑100 (or working towards), plus one of MS‑500, SC‑400 or SC‑900.

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