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Senior System Engineer

Company

GBM

Location

dubai, dubai emirate

Posted

July 21, 2026

Position Overview

  • Responsible for the administration, security, and support of Microsoft 365, Exchange Hybrid, Identity & Access Management, PKI, Email Security, Endpoint Management, and related infrastructure services.

Key Responsibilities

  • Manage Microsoft 365 services including Exchange Online, Teams, SharePoint, OneDrive, and Intune.
  • Administer Exchange Server, Exchange Online, and Hybrid Messaging environments.
  • Manage Entra ID (Azure AD), Azure AD Connect, MFA, Conditional Access, and Enterprise Applications.
  • Support MDM/MAM solutions preferably through Microsoft Intune.
  • Manage PKI/CA infrastructure, AD CS, SSL certificates, and certificate lifecycle management.
  • Administer email security platforms including EOP, Defender for O365, SMTP gateways, SPF, DKIM, and DMARC.
  • Support Trellix security products, endpoint protection, and compliance initiatives.
  • Manage Infoblox DNS, and other DNS relat...

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