Senior System Administrator

Qualifications, skills and experience A Bachelors Degree (NQF Level 7) or NQF 6 Diploma in computer science/engineering, or information technology. Certified Linux Administration. Certified Virtualisation or cloud Administration. 6 - 8 years of experience with server environments including the following: Microsoft 365 Cloud Administration, configuration, and support Linux operating systems; installing, configuring, and supporting Red Hat Enterprise Linux 7. x and 8. x, SUSE Enterprise Linux 12 and 15, Ubuntu 22.04. Windows operating systems: installing, configuring, and supporting. Virtualization technologies: Cloud and On-premises including VMware ESXi, Microsoft Azure, etc. Identity and user management Web and application support including, IIS, Apache, Apache Tomcat, Nginx Security: Configurations, patch management and vulnerability management. Expert knowledge in the following is required: Operating systems: Manage the whole life cycle of the instances. Automating tasks: Configuring and maintaining large number of instances with automation tools and scripting. Service Management processes (Problem Management, Capacity Management, Service Design, Incident Management, etc.) Storage solutions: SAN, Server storage, cloud storage Knowledge of Commvault backup and recovery Critical thinking/debugging skills from application to network layer. Working experience and knowledge of the following is required: Architecture and Design, Data Centre, and Facilities. Governance and legislative practices. Best practice ICT standards and procedures. logical thinking to gather and analyse information, design, and test solutions, and formulate plans Key responsibilities: Release Management: operational changes in the ICT infrastructure and applications System Availability and Compliance: Service Level Agreements (SLAs) and adhering to ICT best practice standards. Monitoring and Reporting: reporting of services/systems availability and capacity. Stakeholder Advisory: aligning business and systems requirements with new technology implementations. Maintenance Planning: Develop maintenance schedules for systems equipment. Support Services: for the swift resolution of incidents. Operational Analysis: for the improvement of IT systems. Configuration Management: Track changes in configurations and update associated documentation accordingly. Incident Response: Respond to outages and other infrastructure issues promptly in accordance with SLAs