Systems Administrator at NMISA: National Metrology Institute of South Africa

Requirements:

• A bachelor’s degree or Advanced Diploma (NQF Level 7) in information technology or a related field.
• A minimum of 5 years’ experience in organizational day-to-day Server administration with experience in computer and network troubleshooting.
• Extensive experience in an IT and Support related field.
• Excellent written and verbal communication skills.
• Good understanding of security architecture, frameworks, and tools, ensuring the robustness and integrity of the organisation's IT systems, data, and networks.
• Experience in managing vendor relationships and ensuring that IT services and solutions meet the organisation's needs and standards.
• Hands on experience in the following: System Administration of Virtual Server Environment (Windows and Linux), VMware, Active Directory, Group Policy, DHCP, DNS, file services, Veeam Backup & Replication, configuring and managing Fortinet FortiGate Firewalls, including VPNs, firewall policies, and network security.
• Experience in administering Microsoft 365, Outlook, OneDrive, Microsoft Azure, Microsoft Intune, Dynamics 365, Sharepoint On-Premises and Online, Teams, Cloud Based Hosting.
• Knowledge of disaster recovery, backup and recovery systems, with implementation experience. Experience with Microsoft Certificate Services (AD CS), PKI (Public Key Infrastructure), certificate templates, CRLs (Certificate Revocation Lists), and OCSP.
• Experience developing and supporting automated workflows using Microsoft Power Automate (Power Flow).
• Troubleshooting and supporting Computer hardware, software systems, programs and computing networks.
• Understanding of networking concepts, including TCP/IP and VLANs.
• Be proficient in setting up systems to detect and prevent computer viruses and unauthorized network intrusion (cybersecurity).
• Excellent troubleshooting and analytical skills.
• Microsoft Certified Windows Server, Red Hat Certified System Administrator (RHCSA), VMware Certified Professional (VCP), Fortinet NSE/FCP, Microsoft Azure Administrator Associate or equivalent is essential.
• ITIL Foundation, COBIT Foundation, Network+, A+ and Security+ certification or equivalent is advantageous

Responsibilities:

• Install, configure, and maintain NMISA’s Virtual Server Environment (Windows and Linux servers) and manage virtualization platforms such as VMware.
• Administer Active Directory, DNS, DHCP, Group Policy, and file services.
• Manage and maintain Windows Server Update Services (WSUS), including approving, deploying, and monitoring Microsoft security patches and updates.
• Plan, test, and implement server patches and updates using WSUS in accordance with change management procedures.
• Manage the complete lifecycle of SSL/TLS certificates, including requesting, installing, configuring, renewing, and troubleshooting certificates for web servers, applications, and services. Monitor certificate expiry dates, ensure timely renewals to prevent service disruptions.
• Monitor server performance and troubleshoot hardware and software issues.
• Configure, manage, and troubleshoot Fortinet Firewalls (FortiGate), including firewall policies, VPNs, NAT, security profiles, and network security.
• Support Microsoft 365, Teams, Intune and Azure environments where applicable.
• Implement and maintain endpoint security, antivirus, and access controls.
• Responsible for contract and license renewals and procurement of all related IT systems and services.
• Administer and maintain the email security platform, including email security policies, spam and malware protection, URL and attachment protection, email continuity, archive management, and user administration.
• Ensure all backups are configured and maintained in line with the NMISA IT’s Backup Schedule.
• Initiate and facilitate technical exercises for disaster recovery to comply with NMISA’s Business Continuity Plan.
• Administer and support the organization's RFID asset tracking system, ensuring the accurate tracking, monitoring, and management of IT and business assets.
• Administer, maintain, and provide technical support for the organization's Quality Management System (QMS), ensuring system availability, performance, security, and compliance with organizational and regulatory requirements.
• Implement, and maintain automated business workflows using Microsoft Power Automate (Power Flow) to improve operational efficiency and reduce manual processes.
• Administer and support the NMISA’s security awareness and phishing simulation platform. Manage user provisioning, training campaigns, phishing simulations, and reporting to improve organizational cybersecurity awareness.
• Provide end-user technical support of software, systems, networking, and hardware.
• Perform routine administrative and maintenance tasks on hardware.
• Document and maintain effective procedures for your environment and ensure compliance with IT policies.
• Monthly reports for all facets of your environment.
• Mentoring interns to provide effective support to the NMISA and the Human Capital Development Plan.

Closing date for applications: 02 October 2026