Linux Systems Administrator

2 months ago


Cape Town, Western Cape, South Africa Dimension Data Full time
Job Summary

Dimension Data is seeking a seasoned Linux Systems Administrator to join our team. As a key member of our infrastructure team, you will be responsible for the support and management of internal and client-facing Linux systems and services.

Key Responsibilities

• Support and maintain the Linux server fleet footprint
• Optimize Linux services and processes
• Support day-to-day Linux services spanning 200+ servers (on-premise physical and virtualized)
• Optimize Linux and relevant reporting (customer and internal)
• Maintain design and support documentation
• Develop and maintain knowledge articles
• Change management
• Maintain systems as defined in the area of responsibility and ensure availability by performing regular maintenance. Ensure that all changes are managed and communicated effectively from initiation to resolution.

Requirements

• Linux Certification (RHCA or equivalent, current)
• 5 years' work experience managing and supporting Linux in an enterprise environment
• Demonstrate solution and service knowledge
• Demonstrate problem and trend analysis, and solution formulation skills
• Possess strong general knowledge of infrastructure services relevant to Linux
• DNS, NTP, DHCP, file systems (extX, NFS, CIFS, SMB, etc.), kernel, SSH, FTP (ftps/sftp/ftp), Samba, server setup and optimization, security hardening, network, and other common Linux services
• CentOS, Ubuntu, RedHat (N to N-2 versions)
• Advance Bash scripting knowledge
• Basic to intermediate skills to mass support, update, and maintain a Linux server fleet (Ansible, other)
• ITSM and general MS Office skills
• Beneficial: Support automation, Ansible, Chef, or Puppet; Perl scripting; Python scripting; AWS IaaS service support (setup, maintain, and system administration); basic DevOps

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