System Administrator

Job Information

• Job Opening ID ZR_871_JOB
• Date Opened 04/07/2026
• Job Type Full time
• Work Experience 3+
• Job Opening Status Open
• Industry IT Services
• Degree Bachelor's
• Job Role IT
• City Muscat
• State/Province Masqat
• Country Sultanate of Oman
• Zip/Postal Code 0000

1. Active Directory (AD)

• Manage and maintain Active Directory (AD) infrastructure, including creating and managing users, groups, and organizational units (OUs).
• Configure and enforce Group Policies (GPOs) to ensure security and compliance.
• Implement and maintain AD roles, including DNS, DHCP, and Certificate Services.
• Monitor replication and resolve AD synchronization issues between domain controllers.
• Perform periodic audits of AD permissions, accounts, and roles to ensure compliance.
• Plan and execute domain migrations or integrations during organizational changes.

2. Exchange Server

• Install, configure, and manage Microsoft Exchange Server environments.
• Monitor email flow, queues, and mailbox databases for performance and health.
• Configure and manage email security policies, spam filters, and data loss prevention (DLP).
• Perform Exchange migrations, including on-premises to Office 365 or hybrid setups.
• Manage email archiving, retention policies, and compliance requirements.
• Troubleshoot issues related to mail delivery, access, or synchronization across devices.

3. Virtualization

• Deploy and manage virtualization platforms, such as VMware vSphere, Microsoft Hyper-V, Nutanix AHV and OLVM.
• Monitor and optimize the performance of virtual machines (VMs) and hosts.
• Create and manage virtual networks, storage, and resource pools.
• Perform VM backups and recoveries, ensuring business continuity.
• Implement high-availability and disaster recovery solutions for virtualized environments.
• Plan and execute upgrades of hypervisors and virtual infrastructure.

4. Linux Administration

• Install, configure, and maintain Linux servers (e.g., Oracle Linux, Ubuntu, Red Hat).
• Manage user accounts, permissions, and secure access using SSH or PAM.
• Monitor Linux system performance.
• Configure and manage Linux-based services, such as web servers (Apache), databases, and DNS. Apply patches, updates, and security hardening.

5. Backup Administration

• Configure and manage enterprise backup solutions (Veeam).
• Develop and maintain backup policies.
• Ensure backups are tested regularly for recoverability and compliance with RTO/RPO.
• Manage tape backups, offsite storage, and replication to disaster recovery sites.
• Integrate database-specific backup tools like Oracle RMAN.
• Monitor backup jobs and troubleshoot failures or performance bottlenecks.

6. Storage Management

• Manage and monitor SAN/NAS/VSAN storage systems and ensure optimal performance.
• Configure RAID levels (e.g., RAID 1, RAID 5) for redundancy and performance.
• Allocate and manage storage volumes and LUNs for server and application needs.
• Monitor storage capacity and plan for future expansions.
• Implement data deduplication, compression, and replication where applicable.

7. Monitoring

• Deploy and manage monitoring tools, such as ManageEngine tools.
• Configure alerts and notifications for critical system, network, or application metrics.
• Monitor CPU, memory, disk usage, and network performance for anomalies.
• Analyze logs to identify trends, potential issues, or security breaches.
• Generate and distribute reports on system health, performance, and capacity planning. Automate monitoring tasks using scripts.

Requirements

• Qualifications and Skills:

1. Educational Qualifications:

+ Bachelor’s degree in Computer Science, Information Technology, or a related field.#### **2\. Work Experience:**


+ At least **3 years** of hands\-on experience in the field.
+ Experience in Microsoft based operating systems, Active Directory, DNS, DHCP, Exchange Server, Enterprise Backup Soulitions and Linux Administrator.#### **3\. Technical Skills:**


+ Problem\-Solving and Administration.
+ Cloud computing.
+ Proficiency in managing virtualization platforms (VMware, AHV, OLVM and micrsoft hyper\-v).
+ Expertise in Oracle Linux installation, configuration, and administration.
+ Knowledge of RAID configurations (RAID 1, RAID 5\).
+ Hands\-on experience with backup tools (Veeam, Oracle RMAN).
+ Strong understanding of networking concepts, protocols, and firewalls.
+ Familiarity with storage systems, including SAN, NAS,iSCSI and VSAN.
+ Vendor Management: Work with third\-party vendors and ensure SLA compliance.
+ RFP Preparation: Draft RFPs, evaluate bids, and recommend solutions.
+ Analysis: Perform cost\-benefit analysis and recommend improvements.#### **4\. Certifications (Optional but Preferred):**


+ Red Hat Certified System Administrator (RHCSA).
+ Microsoft Certified: MCSE.#### **5\. Soft Skills:**


+ Strong analytical and problem\-solving abilities.
+ Excellent communication and documentation skills.
+ Ability to manage multiple tasks and priorities in a dynamic environment.
+ Team\-oriented with a collaborative mindset.