Senior System Administrator

abra Professional Services is seeking a Senior System Administrator to join a technology infrastructure team within a large-scale enterprise IT division. In this role, you will be part of a team responsible for end-to-end system operations, including installations, troubleshooting, routine maintenance, and project management across physical and virtual environments. Key Responsibilities • Manage, maintain, and optimize large-scale virtual and physical server environments. • Oversee core infrastructure systems including Active Directory, GPO, DNS, DHCP, SCCM, Microsoft Intune, Exchange, and VDI solutions. • Design, build, and maintain automation scripts using PowerShell for system management and efficiency. • Lead infrastructure, upgrade, and migration projects independently from concept to deployment. • Collaborate cross-functionally with security, networking, and software development teams to deliver technical solutions. • Provide high-level support for system administrators, end-users, and external vendors.

Requirements: Education: An Academic Degree or Practical Engineer diploma (Handasai) in IT, Technology, or Industrial Engineering & Management AND at least 4 years of experience as a System Specialist in a large enterprise. OR  Graduate of relevant professional IT/System courses (minimum 600 cumulative hours) AND at least 6 years of experience as a System Specialist in a large enterprise. OR At least 8 years of hands-on experience as a System Specialist in a large enterprise. Technical Experience Requirements: • Minimum 4 years of proven experience in a large organization (1,000+ employees) managing Active Directory, DNS, DHCP, and GPO environments. • Minimum 4 years of hands-on experience writing complex PowerShell scripts for automation and infrastructure management. • Minimum 4 years of experience with SCCM and Microsoft Intune (including software deployment, patch management, and configuration). • Minimum 4 years of proven experience with VMware Horizon VDI environments (including hands-on management, maintenance, and support utilizing App Volumes and DEM ). • Minimum 4 years of experience independently leading infrastructure projects (implementations, upgrades, or migrations). • Good understanding of Azure AD and hybrid cloud solutions.