Systems Administrator

Provantage; Gauteng; On-site; ZAR 700,000 - 1,000,000; Full time

Job summary

Provantage is seeking an experienced IT Infrastructure Specialist to maintain, secure and improve the Group's core IT systems across multiple sites, providing advanced Level 2 and 3 support. You will administer Windows Server, Active Directory, Microsoft 365/Entra ID, backups, networking and security tooling, delivering projects with minimal disruption.

Candidates should have five years of relevant experience, relevant certificates, and strong PowerShell and documentation skills to ensure

Qualifications

• Diploma in Information Technology or equivalent.
• Microsoft certifications such as MCSE, MCSA or current equivalents.
• CompTIA A+ and Network+ certifications.
• Azure, Microsoft 365, Fortinet or Cisco certifications advantageous.
• At least five years of systems administration or infrastructure support in a multi-site environment.
• Strong practical experience with Microsoft 365, Entra ID, AD, Windows Server, virtualization, backups and networking.
• Experience with PowerShell, infrastructure monitoring, security tooling and technical documentation preferred.

Responsibilities

• Maintain Windows Server, Active Directory, DNS, DHCP and related infrastructure.
• Administer Microsoft 365 and Entra ID, including Exchange Online, Teams and security controls.
• Maintain virtual servers, storage, OS patching, monitoring and capacity.
• Administer backup and recovery platforms; test restores and investigate failures.
• Provide Level 2 and Level 3 support; guide service desk on escalations.
• Support LAN/WAN, Wi-Fi, VPN, firewall and SD-WAN troubleshooting.
• Operate endpoint, vulnerability, SIEM and security monitoring tools; remediate alerts.
• Deliver infrastructure projects, migrations, upgrades and site rollouts with minimal disruption.
• Maintain accurate diagrams, configurations, procedures, asset records and DR documentation.
• Manage vendor escalations and ensure change controls are followed.
• Participate in after-hours maintenance and priority incident response as required.
• Comply with security, privacy, change-management and access-control requirements.

Skills

PowerShell

Security tooling

Technical documentation

Incident escalation

Monitoring

Education

Diploma in Information Technology

MCSE/MCSA or current equivalents

CompTIA A+ and Network+

Azure/Microsoft 365 certifications

Tools

Microsoft 365

Entra ID

Active Directory

Windows Server

Backups

Virtualisation

Networking

Fortinet

Cisco

Azure

Job description

Maintain, secure and improve the Group's core IT infrastructure while providing advanced Level 2 and Level 3 support. The role ensures that servers, Microsoft platforms, backups, networks and security systems remain reliable, monitored, documented and aligned with approved IT standards.

Key responsibilities

• Administer Windows Server, Active Directory, Group Policy, DNS, DHCP, file services and related infrastructure.
• Manage Microsoft 365 and Entra ID administration, including identities, access, Exchange Online, Teams and security controls.
• Maintain virtual servers, storage, operating systems, patching, monitoring, capacity and infrastructure availability.
• Administer backup and recovery platforms; monitor jobs, investigate failures and perform scheduled restore testing.
• Provide Level 2 and Level 3 support, resolve complex incidents and guide service desk staff through technical escalations.
• Support LAN, WAN, Wi-Fi, VPN, firewall and SD-WAN troubleshooting, escalating specialist configuration where required.
• Operate endpoint, vulnerability, EDR, SIEM and security monitoring tools; investigate alerts and remediate approved findings.
• Deliver approved infrastructure projects, migrations, upgrades, site rollouts and technical changes with minimal disruption.
• Maintain accurate diagrams, configurations, procedures, asset records and disaster-recovery documentation.
• Manage vendor escalations, track technical actions and ensure external access and changes follow Group IT controls.
• Participate in planned after-hours maintenance and priority incident response when required.
• Comply with security, privacy, change-management and access-control requirements; escalates risks immediately.

Qualifications and experience

• Diploma in Information Technology or
• Microsoft certifications such as MCSE, MCSA or their current equivalents
• CompTIA A+ and Network+ certifications
• Azure, Microsoft 365, Fortinet or Cisco certifications would be advantageous
• At least five years of systems administration or infrastructure support experience in a multi-site environment.
• Strong practical experience with Microsoft 365, Entra ID, Active Directory, Windows Server, virtualisation, backups and networking.
• Experience with PowerShell, infrastructure monitoring, security tooling and technical documentation is strongly preferred.