Senior System Administrator Full Time

Our client is seeking an experienced Senior System Administrator to join a high-performing infrastructure team responsible for maintaining critical production environments. This role offers the flexibility of remote work while requiring regular on-site attendance in Pretoria and operational support at the TERACO Data Centre when necessary. If you thrive in Linux environments and enjoy solving complex infrastructure challenges, this opportunity could be the ideal next step in your career.

Key Responsibilities
• Administer, maintain, secure and support Linux-based production and internal systems.
• Manage servers, storage, virtualisation, networking and core platform services.
• Monitor system health, security events and infrastructure performance.
• Perform system patching, upgrades, maintenance and controlled change implementation.
• Conduct root cause analysis and implement corrective actions following incidents.
• Maintain and test backup, restore, replication and disaster recovery procedures.
• Administer privileged access, identity controls and multi-factor authentication.
• Maintain infrastructure documentation, operational runbooks and recovery procedures.
• Support security and compliance requirements aligned with ISO/IEC 27001:2022.
• Work with vendors and service providers on infrastructure, hosting and connectivity matters.
• Participate in an after-hours standby rotation and respond to critical production incidents.
• Automate routine operational tasks through scripting where appropriate.
• Drive continuous improvements in infrastructure resilience and operational maturity.

Minimum Requirements
• 5–8+ years of Linux systems administration experience in production environments.
• RHCSA or LPIC-2 certification is a mandatory requirement.
• Must reside within 30 km of the TERACO Data Centre in Isando.
• Must have remained with the current employer for longer than five years.
• Strong Linux administration and troubleshooting skills.
• Experience with networking, firewalls, switches, routing, VPNs and server hardware.
• Experience with backup, disaster recovery and restore validation.
• Exposure to Microsoft 365 and identity-related infrastructure administration.
• Experience working within formal change control and security compliance environments.
• Ability to work independently during operational incidents.
• Strong scripting and automation skills.
• Excellent documentation and communication abilities.

Should you meet the requirements for this position, please email your CV to it.vacancy@stand-outstaffing.co.za. You can also contact us on 031 350 4019 or alternatively visit our website https://stand-outstaffing.co.za

Correspondence will only be conducted with short listed candidates. Should you not hear from us within 4 days, please consider your application unsuccessful.