IT Infrastructure Lead

Big Fish Consulting; Abu Dhabi; On-site; AED 360,000 - 720,000; Full time

Job summary

Big Fish Consulting is seeking an IT Infrastructure Lead to own enterprise IT operations across on-prem and cloud environments, directing administration, networking, cybersecurity, virtualization, and cross-site delivery.

You will lead Azure, Microsoft 365, backup & disaster recovery, and multi-site connectivity, while mentoring engineers and shaping IT operational standards.

Qualifications

• 7–10 years hands-on IT infrastructure, cloud, networking, and security experience.
• Strong expertise in Azure, Windows Server, VMware/Hyper‑V, and Microsoft 365.
• Experience supporting complex multi-site enterprise environments.
• Certifications such as AZ‑104, CCNA, Fortinet NSE, Aruba, Palo Alto, ITIL, or Commvault are highly desirable.

Responsibilities

• Lead administration of Microsoft Azure, hybrid cloud environments, and cloud migration initiatives.
• Manage Windows Server infrastructure, Active Directory, DNS, DHCP, Group Policy, and file services.
• Administer and optimize VMware vSphere and Hyper-V virtualized environments.
• Design, implement, and support enterprise LAN, WAN, Wi‑Fi, VLANs, routing, and multi‑site connectivity.
• Manage network security solutions including FortiGate, Palo Alto Firewalls, VPNs, NAC, and Azure security controls.
• Oversee Microsoft 365, Exchange Online, Teams, SharePoint, OneDrive, Intune, and endpoint management.
• Lead backup and disaster recovery operations, restore testing, and business continuity planning.
• Support Oracle on‑premises infrastructure and Oracle OCI environments.
• Drive infrastructure monitoring, capacity planning, patch management, and system performance optimization.
• Implement cybersecurity best practices, security hardening, EDR solutions, and compliance initiatives.
• Manage infrastructure projects, vendor relationships, and third‑party service providers.
• Maintain technical documentation, SOPs, network diagrams, and asset inventories.
• Provide senior‑level troubleshooting and act as the key escalation point for infrastructure‑related issues.
• Mentor junior engineers and contribute to the development of IT operational standards and best practices.

Skills

Azure

Windows Server

VMware/Hyper-V

Microsoft 365

Network security

Backup & DR

Multi-site IT

Leadership

Education

Bachelor's Degree in IT or related field

Tools

FortiGate

Palo Alto

VPNs

NAC

Azure security controls

Intune

Exchange Online

SharePoint

OneDrive

Job description

We are looking for a IT Infrastructure Lead to take ownership of enterprise IT operations across on-premises and cloud environments. This hands-on role will lead infrastructure administration, networking, cybersecurity, virtualization, Microsoft Azure, Microsoft 365, backup & disaster recovery, and multi-site IT operations.

Key Responsibilities:

Lead administration of Microsoft Azure, hybrid cloud environments, and cloud migration initiatives

Manage Windows Server infrastructure, Active Directory, DNS, DHCP, Group Policy, and file services

Administer and optimize VMware vSphere and Hyper-V virtualized environments

Design, implement, and support enterprise LAN, WAN, Wi‑Fi, VLANs, routing, and multi‑site connectivity

Manage network security solutions including FortiGate, Palo Alto Firewalls, VPNs, NAC, and Azure security controls

Oversee Microsoft 365, Exchange Online, Teams, SharePoint, OneDrive, Intune, and endpoint management

Lead backup and disaster recovery operations, restore testing, and business continuity planning

Support Oracle on‑premises infrastructure and Oracle OCI environments

Drive infrastructure monitoring, capacity planning, patch management, and system performance optimization

Implement cybersecurity best practices, security hardening, EDR solutions, and compliance initiatives

Manage infrastructure projects, vendor relationships, and third‑party service providers

Maintain technical documentation, SOPs, network diagrams, and asset inventories

Provide senior‑level troubleshooting and act as the key escalation point for infrastructure‑related issues

Mentor junior engineers and contribute to the development of IT operational standards and best practices

Requirements:

Bachelor's Degree in IT or a related field

7-10 years of hands‑on experience in IT Infrastructure, Cloud, Networking, and Security

Strong expertise in Azure, Windows Server, VMware/Hyper‑V, and Microsoft 365

Experience supporting complex multi‑site enterprise environments

Certifications such as AZ‑104, CCNA, Fortinet NSE, Aruba, Palo Alto, ITIL, or Commvault are highly desirable