Senior Microsoft 365 & Security Infrastructure Engineer

GBM; Dubai; On-site; AED 334,800 - 558,000; Full time

Benefits offered by this job

Job summary

GBM is seeking an experienced Senior Microsoft 365 Administrator in Dubai to manage Exchange Hybrid, Entra ID, PKI, and email security. The role covers Active Directory, Intune, and endpoint management within hybrid cloud environments.

The candidate should have enterprise-scale experience, strong analytical and communication skills, and relevant Microsoft certifications. On-site UAE-based role with opportunities to lead major transformation projects.

Qualifications

• Bachelor's degree in Computer Science, Information Technology, or a related field.
• Microsoft certifications such as Microsoft Certified: Messaging Administrator Associate, Microsoft 365 Certified: Enterprise Administrator Expert, Microsoft Certified: Identity and Access Administrator Associate, or equivalent.
• Experience with enterprise-scale Microsoft 365 environments and hybrid cloud deployments.
• Strong analytical, troubleshooting, communication, and stakeholder management skills.

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 related infrastructure services.
• Implement security patches, upgrades, performance optimization, and disaster recovery solutions.
• Lead mailbox migrations, Microsoft 365 transformation projects, and hybrid cloud initiatives.
• Provide L3 support, incident management, vendor coordination, and stakeholder engagement.

Skills

Microsoft 365

Exchange Hybrid

SMTP Gateways

Trellix Security

Infoblox DNS

PowerShell

Windows Server

Education

Bachelor's degree in Computer Science, Information Technology, or a related field

Tools

Infoblox DNS

PowerShell

Windows Server

Job description

GBM is seeking an experienced Senior Microsoft 365 Administrator in Dubai to manage Exchange Hybrid, Entra ID, PKI, and email security. The role covers Active Directory, Intune, and endpoint management within hybrid cloud environments.

The candidate should have enterprise-scale experience, strong analytical and communication skills, and relevant Microsoft certifications. On-site UAE-based role with opportunities to lead major transformation projects.