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Senior Systems Administrator

3 months ago

Johannesburg, South Africa IntelliStaff Full time

Job Description:

      • Manage and maintain the organizations IT infrastructure, including servers, networks, and storage systems.
      • Oversee the administration of Windows and Linux servers, ensuring optimal performance, security, and availability.
      • Implement and manage virtualization solutions, such as VMware or Hyper-V.
      • Develop and maintain backup and disaster recovery plans, ensuring data integrity and availability.
      • Monitor system performance and network connectivity, troubleshooting and resolving issues promptly.
      • Implement and enforce security policies, including firewalls, antivirus software, and intrusion detection/prevention systems.
      • Conduct regular security audits and vulnerability assessments, addressing any identified issues.
      • Manage user accounts, permissions, and access controls within Active Directory or other directory services.
      • Install, configure, and update software applications and operating systems.
      • Maintain detailed documentation of system configurations, procedures, and changes.
      • Generate and analyze reports on system performance, security incidents, and other relevant metrics.
      • Develop and maintain automation scripts for routine administrative tasks and system maintenance.
      • Ensure compliance with industry standards and regulatory requirements for IT systems.
      • Provide advanced technical support and troubleshooting for hardware, software, and network issues.
      • Lead and mentor junior IT staff, providing guidance and training as needed.
      • Collaborate with other IT teams and departments to ensure seamless service delivery and support.
      • Participate in the planning and execution of IT projects, including hardware and software rollouts, system migrations, and upgrades.
      • Identify opportunities for process improvements and implement solutions to enhance IT service quality and efficiency.
      • Stay updated with the latest technology trends, advancements, and best practices in systems administration.
      • Manage and maintain IT hardware inventory, including procurement, deployment, and asset tracking.
      • Provide input and recommendations for the continuous improvement of IT infrastructure and services.
      • Coordinate with vendors and service providers for issue resolution and service enhancements.
      • Participate in team meetings, providing updates on system status, ongoing projects, and any relevant issues.
      • Ensure effective incident response and problem management processes are in place and followed.
      • Lead initiatives to enhance user adoption and effective utilization of IT tools and resources.
      • Identify and mitigate risks associated with IT infrastructure and system changes.
      • Ensure the proper functioning of network and server monitoring tools and respond to alerts.
      • Oversee the implementation and management of cloud services and integrations with on-premises systems.
      • Manage and maintain Citrix environments, including XenApp, XenDesktop, and NetScaler, ensuring high availability and performance.
      • Troubleshoot and resolve issues related to Citrix infrastructure, including application delivery and user access.
      • Optimize Citrix environments for performance, scalability, and user experience.
Qualifications:
  • Education:
    • Bachelors degree in Computer Science, Information Technology, or related field (or equivalent experience).
  • Experience:
    • 15 years of experience in systems administration, including experience with Windows/Linux servers, networking, and cloud environments.
    • Proven experience in managing complex IT environments and leading technical projects.
  • Certifications:
    • Relevant certifications such as Microsoft Certified: Azure Administrator, AWS Certified SysOps Administrator, Red Hat Certified Engineer (RHCE), Cisco Certified Network Associate (CCNA), or similar.
  • Skills:
    • In-depth knowledge of server and network hardware, software, and protocols.
    • Proficiency in scripting and automation (PowerShell, Python, Bash).
    • Strong problem-solving, analytical, and communication skills.
    • Ability to work independently and manage multiple tasks simultaneously.
    • Experience with ITIL or other IT service management frameworks is a plus.