System Administrator

Job Information

Date Opened

04/07/2026

Job Type

Full time

Job Opening Status

Open

Work Experience

3+

Industry

IT Services

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.