Cyber Security Engineer - CarveOut Datacentre

Cybersecurity Engineer (Hands-On) — IT Separation / Carve-Out

We're looking for a hands-on Cybersecurity Engineer to build, configure and validate the core security controls needed for a major IT separation / carve-out. This is an implementation-heavy role — you'll be engineering the security stack, not writing policy.

Key Responsibilities

  • Deploy and harden controls across Identity, Endpoint, Network, M365/Cloud, and Data Protection
  • Implement/tune Entra ID/AD, MFA & Conditional Access, JML, PAM, EDR/Defender, Intune, vuln scanning/patch baselines
  • Engineer network security: firewalls, segmentation, VPN, ZTNA/SASE
  • Configure and integrate Sentinel/SIEM, alerting, and operational runbooks for BAU handover

Ideal Background

  • Strong hands-on cybersecurity engineering background (7+ years ideal)
  • Proven delivery across M365 Security (Defender, Intune, Entra ID, Conditional Access, Sentinel)
  • Practical experience implementing PAM (e.g., Delinea/CyberArk) and tooling integrations
  • Prior experience on M&A carve-outs / IT separations (highly preferred)

Nice to have

  • OT/ICS or data centre security exposure, Zero Trust programmes, experience with vendors like Zscaler/Fortinet/CrowdStrike

Interested? Send your CV with a short note on your carve-out experience and the security tools you've implemented end-to-end and we can take it from there.

Job Details

Company
The Siena Partnership
Location
London, UK
Employment Type
Full-time
Posted