Senior Systems Administrator

Global Air Navigation Services L.L.C. · Abu Dhabi, Abu Dhabi Emirate

About the job

Job Purpose:

To administrate the company’s core computer infrastructure systems including but not limited to: servers, storage, backup, Email, OS and virtualization in compliance to company’s policies and procedures and the industry’s best practices.

Duties & Responsibilities

• Install, update and maintain all servers’ operating systems.

• Monitor, manage and maintain Virtual host resources to ensure availability and reliability of all systems.

• Troubleshoot hardware and software errors by running diagnostics, documenting problems and resolutions, prioritizing problems, and assessing impact of issues.

• Perform regular backup operations and implement appropriate processes for data protection, disaster recovery, and failover procedures.

• Manage, configure, operate, and fine-tune MS Exchange Servers, and all systems related to email server.

• Manage, configure, operate, and fine-tune Email Archiving system.

• Administrate Domain Controllers, DNS, DHCP, IIS.

• Monitor, manage and report on systems capacity, storage planning, and database performance.

• Monitor, manage and report on systems security to ensure protection from breaches or viruses.

• Install latest patches on all infrastructure servers and storage systems to ensure systems security.

• Install latest firmware on all servers and storage hardware to ensure systems performance and security.

• Administrate the Mobile Device Management solution to ensure devices and data security and improve productivity.

• Provide full technical documentation on all core systems infrastructure.

• Drive best practice usage and compliance with corporate policies and audit requirements.

Educational Qualification:

  • Bachelor of Science Degree in Computer Science, Computer Information System, or any related field.

Professional Certifications:

  • MSCE,ITIL, CompTIA Server+


  • Minimum 6+yearsof experience in IT infrastructure systems administration, mainly focusing on MS Exchange, backup, Operating Systems and other infrastructure systems.

Special Technical Skills:

  • Solid experience in Microsoft Exchange 2019 (on-prem)
  • Solid experience in enterprise Backup Systems preferably Veritas NetBackup
  • Solid experience in enterprise Email Archiving Systems preferably Veritas Enterprise Vault
  • Solid experience in Windows Servers 2016/2019/2022
  • Solid experience in OS Virtualization; preferably Hyper-V
  • Solid experience in Active Directory, DNS, DHCP, IIS systems
  • Experience in MS system Center
  • Experience in managing, troubleshooting, and configuring Servers and Storage Systems (SAN/NAS).
  • Experience in enterprise Endpoints Protection Systems preferably TrendMicro
  • Knowledge in Mobile Device Management systems, such as Ivanti or ManageEngine
  • Knowledge in Patch Management solutions, such as Ivanti or ManageEngine
  • Knowledge in PowerShell scripting and troubleshooting
  • Knowledge in SQL administration is a plus

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