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🥝 Principal Platform Engineer

Leonardo | London, United Kingdom | Posted June 04, 2026

Principal Platform Engineer

Job Description

Job Description:

Your Impact

Leonardo is looking for a 3rd Line Platform Engineer to join our collaborative and skilled team supporting a critical MOD site. This is an exciting opportunity to serve as a Subject Matter Expert (SME) in Windows-based enterprise infrastructures. You'll play a central role in the design, deployment, and support of high-security systems that underpin key defence and aerospace operations.

This role is based full-time on site in London and requires DV clearance.
 

What you will do as a Principal Platform Engineer:

  • Take ownership of complex technical issues through to resolution, collaborating with users and other IT teams.
  • Provide expert-level troubleshooting for incidents escalated from 1st and 2nd line support, ensuring consistent and minimal disruption to services.
  • Deploy and integrate secure Windows Server environments (Active Directory, Group Policy, DNS, DHCP) using industry best...

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