Linux System Administrator

Network Recruitment; Gauteng; Hybrid; ZAR 400,000 - 600,000; Full time

Job summary

Network Recruitment is seeking a highly qualified System Administrator to manage critical IT infrastructure. This hybrid role, located in Gauteng, combines remote work with on-site involvement at the TERACO Data Centre. The ideal candidate should possess a RedHat or LPI Certification and have a minimum of 2 years' Linux administration experience. Responsibilities include server maintenance, system performance monitoring, and providing user support, with strong emphasis on IT security principles. Candidates must demonstrate a proactive mindset and the ability to perform under pressure.

Qualifications

• Minimum 2 years’ experience in Linux administration.
• Technically capable with high reliability and adaptability.
• Strong understanding of networking and server hardware.

Responsibilities

• Install, configure, and maintain servers and applications.
• Monitor system performance and resolve issues proactively.
• Manage backups and disaster recovery processes.
• Provide technical support and maintain system documentation.
• Conduct security audits and vulnerability assessments.

Skills

Linux administration

Networking

Office 365 administration

Troubleshooting skills

IT security principles

Analytical skills

Communication skills

Problem-solving skills

Attention to detail

Time management

Education

RedHat or LPI Certification

Job description

Work model: Remote (Hybrid to TERACO Data Centre in Isando)

A leading technology-driven organisation is seeking a System Administrator to manage and maintain its critical IT infrastructure. This role plays a key part in ensuring system stability, security, and performance across a high-availability environment. The successful candidate will be Linux certified, technically strong, dependable under pressure, and comfortable working both independently and as part of a broader DevOps/technical team.

Key Responsibilities

• Install, configure, and maintain servers, storage, networks, and applications
• Monitor system performance and proactively resolve issues
• Manage backups and disaster recovery processes
• Administer user accounts, permissions, and access controls
• Support security and compliance initiatives (e.g., ISO 27001)
• Provide desktop/user support and troubleshoot technical issues
• Maintain system documentation and enforce IT policies
• Set up new employee hardware and software
• Implement and maintain network infrastructure (routers, switches, firewalls)
• Conduct security audits and vulnerability assessments
• Evaluate and recommend new technologies
• Participate in after-hours standby (rotational)

Skills & Experience

• RedHat or LPI Certification (essential)
• Minimum 2 years’ Linux administration experience
• Solid understanding of networking and server hardware
• Experience with Office 365 administration
• Strong troubleshooting and analytical skills
• Knowledge of IT security principles and risk management
• Experience supporting end users and desktop environments
• Ability to work independently in a remote/hybrid setup
• Strong communication and problem-solving skills
• High attention to detail
• Ability to perform under pressure in a high-availability environment
• Effective time management and prioritisation skills
• Team-oriented with a proactive mindset
• Hybrid role: remote with on-site requirements in Pretoria and a local Data Centre
• Must be able to travel to the Data Centre within 30 minutes when required (24/7 readiness)
• Participation in an after-hours standby rotation
• Reliable power backup and internet connectivity are required for remote work
• Occasional local and international travel may be required
• 6-month probation period with initial on-site involvement

Ideal Candidate

• Technically capable and highly reliable
• Security-conscious and detail-oriented
• Comfortable taking ownership of systems and responsibilities
• Adaptable and eager to learn new technologies