Specialist Linux Support Engineer at Absa South Africa

Job Summary

• Work as part of an integrated (run & build) tribe in highly complex environments to provide enterprise-wide Linux OS support across multiple stakeholder groups by managing, maintaining, and supporting Red Hat Enterprise Linux (RHEL) environments, ensuring optimal system performance, security, and reliability.
• Work closely with other IT teams to develop, implement, and troubleshoot solutions in a fast-paced, complex environment.

Job Description

Key Responsibilities

• Installation & Configuration: Install, configure, and maintain Red Hat Enterprise Linux (RHEL) servers in both a physical or virtualized environment.
• System Management: Perform routine system monitoring, administration, and patching of RHEL systems.
• Performance Tuning: Optimize and troubleshoot system performance, addressing bottlenecks and ensuring high availability.
• Security Management: Implement and maintain security policies, including firewalls, SELinux, and user access control, ensuring system integrity.
• Scripting & Automation: Develop and maintain scripts (e.g., Bash, Python) for automating system tasks and routine maintenance.
• Backup & Recovery: Implement and manage backup, disaster recovery, and data replication solutions.
• System Upgrades: Plan and execute system upgrades, ensuring minimal downtime.
• Monitoring, Reporting @ Alerting: Set up monitoring tools (Grafana, Zabbix, etc.) with alerting (UIM / OpsGenie) and generate performance reports to ensure system health.
• Support & Troubleshooting: Provide Tier 2/3 support for system issues, working with internal teams to resolve complex technical problems.
• Documentation: Maintain detailed system documentation and procedures for all Red Hat systems and associated processes.

Application Monitoring & Performance Management

• Monitor application modification requests and ensure best practices are being utilised
• Conduct diagnostic investigations of program errors, and implement or recommend solutions or methodologies for resolution.
• Maintain metrics of operational performance and evaluate trends
• Analyse business systems to determine effectiveness, identify inadequacies, inefficiencies and problems and recommend solutions

Governance, Risk & Control

• Enhance methods and procedures for collecting, analysing, and documenting application issues, and completing user change requests.
• Enhance IT processes for transitioning completed configurations from development to production.
• Plan and coordinate the processes for the provision of user applications and systems necessary for business operations.
• Define and maintain application assessment, development, and support standards, and work with other IT and business stakeholders to establish configuration and use guidelines.
• Provide inputs to availability and capacity management process for effective planning.

Skills and Experience Required

• System Administration: Expertise in installing, configuring, and maintaining Linux-based operating systems, including user management, file system management, and software package management.
• Networking: Strong understanding of network protocols (TCP/IP, DNS, DHCP, etc.), configuring network interfaces, managing firewall rules, and troubleshooting network-related issues on Linux systems.
• Scripting and Automation: Proficiency in scripting languages like Bash, Python, or Perl to automate routine tasks, manage system configurations, and streamline operations.
• Security Management: Knowledge of Linux security best practices, including implementing firewalls, managing access controls, performing system hardening, and regularly applying security patches.
• Troubleshooting and Performance Tuning: Ability to diagnose and resolve system performance issues, log analysis, and optimize Linux systems for better performance and stability.
• Linux Red Hat Certification Red Hat Certified System Administrator (RHCSA) or Red Hat Certified Engineer (RHCE) certification
• Experience with cloud platforms (AWS, Azure, or OpenStack).
• Knowledge of containerization (Docker, Kubernetes) is a plus.
• Experience with DevOps tools like Jenkins, Git, and CI/CD pipelines.
• Strong communication skills and ability to work in a team-oriented environment.
• Ability to manage multiple tasks efficiently and prioritize according to business needs.
• Proactive approach to learning new technologies and solving issues.
• Attention to detail with a focus on system reliability and uptime.

Education

• Bachelor's Degree: Information Technology

End Date: September 18, 2025