Senior Systems Administrator

Dubai Integrated Economic Zones Authority; Dubai; On-site; AED 320,000 - 520,000; Full time

Job summary

Dubai Integrated Economic Zones Authority is seeking an IT Infrastructure Manager to oversee DIEZ's on‑premises and cloud platforms, ensuring availability, security and performance across Windows Server, virtualization, storage and backup solutions.

The role covers Azure, AWS, Microsoft 365, identity services, and hybrid integration, with responsibility for capacity planning, incident resolution and documentation.

Qualifications

• Experience managing Windows Server environments and core enterprise platforms.
• Knowledge of cloud services (Azure/AWS) and identity services.
• Experience with virtualization (VMware/Hyper-V) and data center storage.
• Experience with backup/recovery platforms and DR planning.

Responsibilities

• Administer Windows Server environments and core enterprise platforms to ensure secure operations.
• Monitor infrastructure availability, capacity and performance, and proactively resolve incidents.
• Plan upgrades, patching and lifecycle activities in line with security requirements.
• Maintain documentation and inventories of systems and configurations.
• Administer and support Azure and AWS cloud services, and manage Microsoft 365 and identity services.
• Support hybrid integration and enforce access governance across environments.
• Manage VMware/Hyper-V and vSphere, and oversee SAN/NAS storage and data center operations.
• Oversee backup and recovery platforms and perform recovery testing.

Skills

Infrastructure management

Hybrid cloud familiarity

Incident troubleshooting

Tools

Windows Server

Azure

AWS

Microsoft 365

Exchange

Active Directory

Entra ID

VMware

Hyper-V

vSphere

SAN

NAS

Veeam

Commvault

Azure Backup

NetBackup

Job description

Job Purpose

Manage, maintain and optimize DIEZ's IT infrastructure across on-premises and cloud environments. Ensure the availability, security, performance and resilience of critical platforms, including Microsoft technologies, cloud services, virtualization, storage, data center infrastructure and backup and recovery solutions.

Infrastructure & Platform Management

• Administer and support Windows Server environments, server infrastructure and core enterprise platforms to maintain reliable and secure operations.
• Monitor infrastructure availability, capacity and performance, proactively resolving incidents and addressing recurring technical issues.
• Plan and execute system upgrades, patching, configuration changes and lifecycle activities in line with operational and security requirements.
• Maintain technical documentation, system inventories, operating procedures and configuration records.

Cloud, Microsoft 365 & Identity Services

• Administer Microsoft Azure and AWS services, supporting secure, scalable and cost-effective cloud operations.
• Manage Microsoft 365, Exchange, Active Directory and Entra ID, including user access, authentication, group policies and identity controls.
• Support hybrid infrastructure integration between on-premises systems and cloud platforms.
• Apply access governance, privileged access and security configuration standards across Microsoft and cloud environments.

Virtualization, Storage & Data Center Operations

• Manage VMware, Hyper‑V and vSphere environments, including host configuration, virtual machines, capacity planning and high availability.
• Administer SAN, NAS and enterprise storage arrays, ensuring performance, availability and effective capacity utilization.
• Oversee data center server infrastructure, rack management, power and cooling coordination, and physical equipment organization.
• Support infrastructure modernization, consolidation and migration initiatives while minimizing operational disruption.

Backup, Recovery, Security & Resilience

• Manage backup and recovery platforms such as Veeam, Commvault, Azure Backup and NetBackup, ensuring successful completion and retention compliance.
• Perform recovery testing and support disaster recovery planning to validate recoverability of critical systems and services.
• Implement infrastructure hardening, vulnerability remediation, security baselines and audit requirements in coordination with cybersecurity teams.
• Provide advanced incident troubleshooting, root‑cause analysis and technical guidance to internal teams and service providers.