Full-time Posted June 18, 2026
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Job Description

Network Security Engineer – M365 & Infrastructure

Full-Time / Permanent Role.

Hybrid – Central London (3 days in office).

Areti are recruiting for a Network Security Engineer for a well-established infrastructure and engineering services organisation delivering complex projects across utilities, energy, and critical national infrastructure.

You’ll have a strong background across Network Security, Microsoft 365, and enterprise infrastructure , playing a key role in protecting critical systems and ensuring robust, secure connectivity across on‑prem and cloud environments.

This role is heavily focused on designing, implementing, and improving network security controls , while leveraging M365 security capabilities to enhance identity, access, and collaboration protection across the organisation.

How your day will look:

Network Security & Infrastructure:

  • Design, implement,...

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