Jobs at The Shoprite Group of Company

Purpose of the Job    

• To assist the Team Lead in the Unix Team with rolling out new Linux systems, maintaining, upgrading, replacing, and improving the longterm performance of the systems. The candidate will be responsible for the monitoring, maintenance and operation of the Linux based systems consisting of + 460 SLES and Redhat Enterprise Linux VM's running Enterprise and Open Source Software that are key to daily business operations.

Job Objectives    

• To administer and support the Linux environments
•  Resolve Incidents and fulfil Service Requests using a service management ticket queue and Change Management processes
•  Maintaining service configurations as and when they change or are deployed

To build and maintain Linux server environments

•  Develop and maintain documentation for standards, processes, policies and procedures
•  Work within established configuration and change management policies to ensure awareness, approval, and success of changes made to the infrastructure

To assist with System Availability, Performance and Monitoring

•  Ensuring the correct metrics are being monitored for system availability
•  Ensure the overall health and performance of production environment

To ensure information security and regulatory compliance

•  Manage server security remediation activities which will include conducting vulnerability scans and patching
•  Assist with information security practices, policies, least privilege, RBAC, encryption (GPG, SSL/TLS, PKI)

To assist with Disaster recovery management, procedures & documentation

•  Keep DR environment in sync with production environment
•  Assist with creation of DR plan and recovery procedures for Linux systems and applications

To perform Linux application administration and support

•  Perform administration on DNS Bind and Squid Proxy Servers
•  Perform administration on services and applications such as LDAP, SNMP, SMTP, Apache Web Server, Apache Tomcat, JBOSS and MySQL

Qualifications    
Essential:

• Grade 12
• Industry Certification: LPIC (Linux Professional Institute Certification)

Desirable:

• Industry Certification: RHCE (Red Hat Certified Engineer)
• Industry Certification: SUSE CLP (SUSE Certified Linux Professional)

Experience    
Essential:

• Extensive System Administration experience with Red Hat Linux and SUSE enterprise Linux (35 years)
• Proven history of incident response, diagnostic activities, Root Cause Analysis (RCA), Corrective Action Plans, and advanced troubleshooting (35 years)
• Experience with RDS databases like MySQL, LDAP, Bind DNS service and Apache Web service (35 years)

Desirable:

• Experience working with virtualisation technologies (12 years)
• Experience in documenting environment and processes (12 years)

Knowledge and Skills    
Essential:

• Understanding of UNIX/Linux Fundamentals and concepts
• Understanding of network and storage principles
• Knowledge of industry security principles and server vulnerability remediation practices
• Indepth knowledge of Redhat and SUSE Enterprise Linux
• Scripting experience, specifically with Ruby/Perl and shell scripting language to automate existing and workloads and routine system admin tasks
• Indepth knowledge of TCP/IP, BIND, LDAP and other common LAMP stack components (Linux OS, DNS, SNMP, SMTP, Apache Web Server, Apache Tomcat, JBOSS, MySQL)
• Experience with Squid Cache

Desirable:

• IBM hardware knowledge
• Disaster Recovery Planning knowledge
• Exposure to the concepts of "cloud"
• Experience with FTP daemons such as ProFTPD
• Virtual environments knowledge including VMWARE, HyperV and KVM