Senior System Administrator

6 days ago


Riyadh, Ar Riyāḑ, Saudi Arabia NOZOM Full time

We are seeking a Senior System Administrator with extensive experience in managing IT infrastructure, system administration, and cybersecurity. The ideal candidate will have a strong background in Windows Server, Linux, networking, virtualization, cloud integration, and security management.

Key Responsibilities:

Operating Systems Administration:

  • Manage Windows Server (Active Directory, Group Policy, DNS, DHCP, IIS).
  • Administer Linux/Unix environments (Ubuntu, CentOS, Red Hat) including user permissions and shell scripting.

Networking & Infrastructure:

  • Deep understanding of TCP/IP, VLANs, VPN, DNS, and DHCP.
  • Manage firewalls and cybersecurity solutions.
  • Knowledge of SD-WAN and load balancing technologies.
  • Expertise in VMware vSphere & vCenter:
  • Installation, administration, and maintenance.
  • ESXi host management and performance optimization.
  • vMotion, clustering, and snapshot management.
  • Storage and network integration.
  • Troubleshooting VMware environments.

Storage & Backup Solutions:

  • Manage SAN, NAS, iSCSI, and FC storage solutions.
  • Experience with Dell EMC, NetApp, HPE 3PAR, and Pure Storage.
  • Experience with On-Prem to Cloud Migration (AWS, Azure, Google Cloud).
  • System migrations: Physical to Virtual (P2V) and Virtual to Virtual (V2V).
  • Database and application migration to new environments.

Cybersecurity & Security Management:

  • Implement security standards (ISO 27001, NIST, CIS).
  • Integrate SIEM, EDR/XDR security solutions.
  • Manage MFA, firewall rules, IDS/IPS.

Administrative & Soft Skills:

  • Technical documentation and report writing.
  • Strong problem-solving and performance analysis skills.
  • Ability to communicate effectively with non-technical users.
  • Ability to work under pressure and handle critical incidents.

Experience & Qualifications:

  • 9+ years in IT infrastructure and system administration.

Preferred Certifications:

  • Windows Server: Microsoft Certified: Windows Server Hybrid Administrator Associate, MCSA/MCSE (Legacy).
  • Networking & Infrastructure: CCNA, CCNP.
  • VCP-DCV, VCAP-DCV, VCDX (advanced level).
Seniority Level

Mid-Senior level

Employment Type

Full-time

Job Function

Information Technology

Industries

IT Services and IT Consulting

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