Senior System Administrator - Freelancer Egypt

📢Freelancing opportunity – Wintel System Administrator – long-term contract🚀 - Remote - Egypt

We are looking for a Wintel System Administrator to join our team. The ideal candidate is passionate about infrastructure management, eager to solve complex challenges, and committed to maintaining high operational standards across global environments.

Duties and responsibilities:

• Infrastructure management: administer and maintain Windows Server Infrastructure across multi-national environments & manage Active Directory, Group Policy Objects (GPOs), DNS, DHCP and Certificate Services
• Troubleshooting & Support: investigate and resolve complex issues related to server performance, security and services in Windows environments & provide L3 support for escalated incidents
• Documentation: create and maintain detailed runbooks, operational procedures and technical documentation
• Virtualization: Support VMwarem vSphere / ESXi environments including vCenter administration (clusters, HA, DRS, storage policies, templates, snapshots)
• Automation & Scripting: Develop and maintain automation scripts using Powershell, Bash and Python to streamline system and virtualization tasks & utilize tools like Ansible for configuration management and task automation across environments

Requirements:

• Good understanding of English – spoken and written;
• Minimum of 5 years of hands-on experience managing Windows Server infrastructure in enterprise environments
• Proven ability in documenting operational procedures, creating runbooks, and maintaining internal knowledge bases
• Solid background in Windows Server administration, including configuration and maintenance
• Perform Patch Management — Execute regular OS and application patching across Windows Server environments, ensuring compliance with security baselines and organizational policies.
• Monitor Patch Compliance — Track, validate, and report patch deployment status using tools such as WSUS, SCCM, or equivalent platforms, addressing failed or incomplete updates.
• Strong troubleshooting skills in enterprise Windows environments, covering performance, security, and service-related issues
• Advanced knowledge of Active Directory (AD), Group Policy Objects (GPOs), DNS, DHCP, and Certificate Services
• Basic proficiency in VMware vSphere/ESXi administration, configuration, and troubleshooting, including VMware vCenter (clusters, HA, DRS, storage policies, templates, snapshots)
• Familiarity with Nutanix Prism Central / Element and AHV hypervisor (including N2C)
• Experience using PowerShell, Bash, and Python for automation of virtualization tasks (e.g., via Ansible)