Systems Administrator at Old Mutual

Job Description

• We are seeking an experienced and professional Systems Administrator to join our IT Operations team. The successful candidate will be responsible for maintaining, securing, and optimising core IT infrastructure, ensuring system reliability, strong security posture, and operational excellence across the enterprise.
• Support, maintain, and enhance the organisation’s IT infrastructure across servers, storage, virtualization, and backup environments.
• Install, configure, and maintain Windows/Linux servers, operating systems, and enterprise applications.
• Administer Active Directory, DNS, DHCP, Microsoft 365, SharePoint and VMware environments.
• Support and manage IBM Storage systems.
• Monitor system health, performance, availability, and security using enterprise monitoring tools.
• Manage and monitor Rubrik backups and perform regular backup validation
• Support DR and business continuity activities.
• Manage identity and access across Microsoft Entra ID / Azure AD, including conditional access and identity lifecycle processes.
• Apply patches, updates, and security fixes to servers and applications.
• Assist with vulnerability remediation in collaboration with Cybersecurity teams.
• Ensure compliance with security policies, hardening standards, and audit requirements.
• Manage user accounts, permissions, group policies, privileged accounts, and identity governance across AD and Entra ID/Azure AD.
• Perform quarterly access reviews and support identity lifecycle management.
• Troubleshoot hardware, software, and network issues, providing Tier 2/3 support.
• Conduct root cause analysis for recurring incidents.
• Collaborate with vendors and internal teams on escalations, upgrades, and infrastructure improvements.
• Maintain accurate documentation of system configurations, procedures, and change records.
• Document troubleshooting steps and contribute to IT knowledge sharing.
• Support IT projects, infrastructure upgrades, migrations, and deployments.

Minimum Requirements:

• Degree/Diploma in Information Technology or related field.
• Proven experience as a Systems Administrator in an enterprise environment.
• Strong knowledge of Windows/Linux, Active Directory, DNS, DHCP, VMware, IBM Storage, Microsoft 365, SharePoint and Rubrik.
• Strong troubleshooting, analytical, and documentation skills.

Preferred Certifications

• Microsoft MCSA/MCSE
• ITIL Foundation

Skills

• Action Planning, Adaptive Thinking, Cloud Computing, Cloud Infrastructure Management, Computer Network Security, Data Compilation, Data Management, Digital Literacy, Gateway Servers, Information Technology (IT) Support, IT Installations, IT Network Security, Network Monitoring, Test Case Management, Web Platform Development Software

Competencies

• Collaborates
• Communicates Effectively
• Cultivates Innovation
• Decision Quality
• Ensures Accountability
• Optimizes Work Processes
• Tech Savvy

Education

• NQF Level 5 - Higher, Advance or Occupational Certificate or equivalent

Closing Date

• 16 April 2026