Senior System Administrator - Linux and Cloud

SUMMARY:
My client is seeking a Senior System Administrator. The incumbent will be responsible for installation, testing, tuning, optimization, problem resolution, repairs, upgrades, and maintenance of a wide range of systems, including operating systems, data management products, office automation products, embedded systems, mobile systems, cloud systems, web systems, and utility enabling software. The position also entails high-level problem resolution for complex systems and implementation and monitoring of security policies across a large volume of instances. This position is based in Pretoria.

POSITION INFO:
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.
• At least ten 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.

• 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.

• 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

• 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

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