18 System Administrator jobs in Johannesburg

• Linux System Administration
• Install and configure Linux systems
• Perform system maintenance, upgrades, and patching
• Create system backups and monitor system performance
• System Security
• Configure and maintain system security and hardening
• Conduct OS vulnerability assessment and remediation
• System Maintenance
• Configure and maintain LVM, filesystems, and server hardware
• Provide technical support and guidance to teams
• Vendor Management
• Coordinate with vendors for hardware and software support
  
  

• 6+ years of experience with RedHat Linux
• Expertise in Linux system administration, security, and performance tuning
• Strong understanding of system configuration, maintenance, and troubleshooting
  
  

• Experience with system security, vulnerability assessment, and remediation
• Strong communication and vendor management skills
  
  

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Role Description:

We're seeking an experienced System Administrator to join our team in Johannesburg, South Africa. As a key member of our technical team, you'll be responsible for installing, configuring, and maintaining Linux systems, ensuring system security, performance, and reliability.

• Install and configure Linux systems
• Perform system maintenance, upgrades, and patching
• Create system backups and monitor system performance
• System Security
• Configure and maintain system security and hardening
• Conduct OS vulnerability assessment and remediation
• System Maintenance
• Configure and maintain LVM, filesystems, and server hardware
• Provide technical support and guidance to teams
• Coordinate with vendors for hardware and software support
  
  
• 6+ years of experience with RedHat Linux
• Expertise in Linux system administration, security, and performance tuning
• Strong understanding of system configuration, maintenance, and troubleshooting
  
  
• Experience with system security, vulnerability assessment, and remediation
• Strong communication and vendor management skills
  
  

• Linux System Administration
• Install and configure Linux systems
• Perform system maintenance, upgrades, and patching
• Create system backups and monitor system performance
• System Security
• Configure and maintain system security and hardening
• Conduct OS vulnerability assessment and remediation
• System Maintenance
• Configure and maintain LVM, filesystems, and server hardware
• Provide technical support and guidance to teams
• Vendor Management
• Coordinate with vendors for hardware and software support
  
  

• 6+ years of experience with RedHat Linux
• Expertise in Linux system administration, security, and performance tuning
• Strong understanding of system configuration, maintenance, and troubleshooting
  
  

• Experience with system security, vulnerability assessment, and remediation
• Strong communication and vendor management skills
  
  

• Seniority level Mid-Senior level

• Employment type Full-time

• Job function Other
• Industries IT Services and IT Consulting

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InfyStrat is seeking a knowledgeable and experienced Linux System Administrator to join our dynamic IT team. In this role, you will be responsible for managing and maintaining our Linux-based systems and ensuring their optimal performance and security. You will work closely with other IT professionals and stakeholders to provide support, troubleshoot issues, and implement best practices for system administration. The ideal candidate will have a strong background in Linux administration, a proactive approach to problem-solving, and excellent communication skills. InfyStrat values innovation and collaboration, and we are looking for someone who is eager to contribute to our mission of delivering high-quality solutions.

• Install, configure, and maintain Linux servers and applications.
• Monitor system performance, troubleshoot issues, and perform necessary upgrades and patches.
• Implement security measures and ensure system compliance with organizational policies.
• Automate routine tasks using scripting languages and configuration management tools.
• Manage user accounts, permissions, and access control.
• Backup and restore data and develop disaster recovery plans.
• Collaborate with development and DevOps teams to support application deployment and optimization.
• Document system configurations, procedures, and best practices.

• Bachelor's degree in Computer Science, Information Technology, or a related field.
• 5+ years of experience in Linux system administration.
• Strong expertise in Red Hat, CentOS, or Ubuntu distributions.
• Proficient in shell scripting and automation tools (e.g., Ansible, Puppet, Chef).
• Experience with networking concepts and system security practices.
• Excellent problem-solving skills and attention to detail.
• Strong communication skills and ability to work collaboratively in a team environment.
• Certifications such as RHCE or LPIC are a plus.

We are recruiting for an Operations Systems Administrator.

1. Administer and manage processes as part of a systems administration team and be responsible for selected processes in the data center.
2. System administration skills required will create a balanced team combination with cross-functional skills and experience to support the following systems and components in the data center:
1. SCCM
2. SCOM
3. VMWare
4. Active Directory and DNS
5. Back-ups and archiving
6. Veritas
7. Storage including a storage area network (SAN)
8. Symantec antivirus
9. Patch management (Ivanti)
10. Server management (Microsoft Windows)
3. Server hardware and software support.
4. Provide support to provincial and municipal offices.
5. Manage and monitor anti-virus products across the organization.
6. Manage and monitor patch management across the organization.
7. Resolve third level support problems.
8. Maintain 99.999% uptime of data-center operations.
9. Server maintenance and monitoring including knowledge of SCOM.
10. Monitor and maintain the load balanced internet information servers (IIS).
11. Responsible for the overall infrastructure architecture, including compliance with the company’s enterprise information architecture.
12. Knowledge of security Firewalls.
13. Knowledge and experience in Microsoft Forefront Threat Management Gateway (Forefront TMG), formerly known as Microsoft Internet Security and Acceleration Server (ISA Server).
14. Knowledge and experience in virtualization technologies, with special focus on VMware.
15. Coordinate and support team members of systems administrators.
16. Review change requests for completeness and analyze, prioritize, categorize, approve, and schedule change requests.
17. Monitor the successful completion of all change requests, including change planning, building, testing, and implementation to ensure these processes follow the change schedule.
18. Review and evaluate the change process.
19. Manage and monitor data storage using storage area network (SAN) technologies.
20. Knowledge of Microsoft Clustering services.
21. Manage the VMWare environment.
22. Schedule and perform maintenance of systems.
23. Provisioning of data center infrastructure.
24. Evaluate new technologies and prepare documentation.

Deep skills and experience in Microsoft Operating Systems and Applications with the following certifications:

• MCSE, MCSD, MCSA, etc.
• MCITP Enterprise Administrator (Microsoft Certified IT Professional) on Windows Server.
• VMWare Certified Professional 6 – Data Center Virtualization (VCP6-DCV).
• MCDBA will be an advantage.

It is further recommended that the candidate should have experience in troubleshooting and problem-solving technical issues, as well as deep skills and experience in designing and implementing IT solutions.

Join to apply for the Group System Administrator role at New Generation Management Consulting

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Join to apply for the Group System Administrator role at New Generation Management Consulting

About Us:
New Generation Group is a dynamic, forward-thinking organization committed to innovation and excellence. We are seeking a highly skilled and motivated Group System Administrator to join our team and take ownership of the management and optimization of our fully integrated ERP and Payroll systems.

Position Summary:
As the Group System Administrator, you will play a critical role in managing, maintaining, and optimizing the New Generation Group’s ERP and Payroll systems. You will ensure seamless operation, user support, and continuous improvement of these critical platforms that power our business operations across all departments.

Key Responsibilities:

• Oversee the day-to-day administration, maintenance, and support of the Group’s fully integrated ERP and Payroll systems.
  
• Managing user accounts, including access provisioning, modifications, and deactivations to ensure proper access controls.
  
• Troubleshoot system issues promptly, identifying causes and implementing effective solutions.
  
• Implement and maintain system security by enforcing access restrictions and policies.
  
• Regularly audit the system by running reports to identify vulnerabilities and ensure ongoing compliance with updated standards.
  
• Ensure users have reliable and secure access to the system through the network and internet.
  
• Provide technical support and guidance to end-users to resolve queries or system challenges.
  
• Create and maintain comprehensive documentation of system procedures, configurations, and troubleshooting steps.
  
• Conduct training sessions for users on new updates, processes, and procedures to enhance system adoption and efficiency.
  
• Collaborate with different departments to identify and implement best practices, ensuring users remain current and efficient when utilizing the system.
  
• Lead the implementation of system upgrades, new modules, and integrations, minimizing disruption to business operations.
  
• Monitor system performance and prepare reports for management to support decision-making and continuous improvement efforts.
  
• Identify and promote opportunities for process automation and system enhancements within ERP and Payroll environments.
  
  
  
  

Requirements :

• BCom Information Systems Degree
  
• Entry level Graduate (Degree Completed)
  
• Understanding of:
  
• Financial Statements
  
• Financial Management
  
• Project Management
  
• HR Principles & Practices
  
• Business Intelligence
  
• The ability to design; implement and manage a fully integrated ERP system
  

• Seniority level Entry level

• Employment type Full-time

• Job function Information Technology
• Industries Telecommunications

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Johannesburg, Gauteng, South Africa ZAR25,000.00-ZAR30,000.00 1 month ago

Johannesburg, Gauteng, South Africa 2 days ago

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B Com Accounting Honours Degree

Articles experience preferred

At least 5 years' experience in a financial capacity

ACCPAC experience essential

Experience in Power Pivots and Power BI

Sage IntAcct

CaseWare

Agile Methodology

Software Development Lifecycle

InfyStrat is seeking a knowledgeable and experienced Linux System Administrator to join our dynamic IT team. In this role, you will be responsible for managing and maintaining our Linux-based systems and ensuring their optimal performance and security. You will work closely with other IT professionals and stakeholders to provide support, troubleshoot issues, and implement best practices for system administration. The ideal candidate will have a strong background in Linux administration, a proactive approach to problem-solving, and excellent communication skills. InfyStrat values innovation and collaboration, and we are looking for someone who is eager to contribute to our mission of delivering high-quality solutions.

• Install, configure, and maintain Linux servers and applications.
• Monitor system performance, troubleshoot issues, and perform necessary upgrades and patches.
• Implement security measures and ensure system compliance with organizational policies.
• Automate routine tasks using scripting languages and configuration management tools.
• Manage user accounts, permissions, and access control.
• Backup and restore data and develop disaster recovery plans.
• Collaborate with development and DevOps teams to support application deployment and optimization.
• Document system configurations, procedures, and best practices.

• Bachelor's degree in Computer Science, Information Technology, or a related field.
• 5+ years of experience in Linux system administration.
• Strong expertise in Red Hat, CentOS, or Ubuntu distributions.
• Proficient in shell scripting and automation tools (e.g., Ansible, Puppet, Chef).
• Experience with networking concepts and system security practices.
• Excellent problem-solving skills and attention to detail.
• Strong communication skills and ability to work collaboratively in a team environment.
• Certifications such as RHCE or LPIC are a plus.

We are seeking a seasoned and highly capable Senior System Administrator to oversee and optimise our core infrastructure across Unix, Solaris, and Linux systems. As a fintech software company, our platforms require maximum reliability, performance, and security — your role will be pivotal in ensuring operational excellence.

We are particularly interested in individuals with strong Solaris expertise, preferably with x86 architecture, who can also work seamlessly within hybrid and Linux-based environments. This role includes ownership of critical services such as PostgreSQL database operations, system replication, automation, and infrastructure hardening.

Key Responsibilities

• Administer, monitor, and maintain Solaris, Linux, and Unix systems (Solaris is a strong focus).
• Perform system upgrades, patch management, user provisioning, and automation via shell/Bash scripting.
• Proactively ensure high availability, uptime, and peak system performance across production, staging, and DR environments.
• Manage PostgreSQL databases, including installation, tuning, backup/restore, replication (logical or streaming), and version upgrades — especially in Solaris-based setups.
• Implement and maintain automated monitoring, alerting, and log analysis pipelines (e.g., Zabbix, systemd, syslog).
• Build and improve infrastructure automation using Bash, Linux and Solaris packages, cron, Ansible, or similar tools.
• Troubleshoot complex infrastructure and network issues, performing root cause analysis and resolution.
• Develop and maintain documentation, runbooks, and procedures for infrastructure and database systems.
• Collaborate with development and DevOps teams on CI/CD pipelines, production readiness, and deployment efficiency.
• Implement and audit security best practices, system hardening policies, and compliance measures (e.g., SSH policies, firewall/IPTables, user access control).

Requirements

• 10+ years of hands-on experience in Unix/Linux/Solaris system administration in production environments.
• Expert-level Solaris experience (x86-based, with SMF service framework).
• Advanced proficiency in Bash/shell scripting for automation and maintenance tasks.
• Practical knowledge of infrastructure automation tools such as cron, systemd, and optionally Ansible or Puppet.
• Extensive experience with PostgreSQL database administration, including replication strategies and tuning.
• PostgreSQL database clustering experience, strategies for distributing, replicating, or organising data and workloads across multiple servers for performance, fault tolerance, or scalability.
• Familiarity with ZFS, LVM, NFS, SSH, IPTables, logging frameworks, and systemd services.
• Solid grasp of high-availability, backup/recovery, and disaster recovery planning.
• Comfort with performing scheduled maintenance, applying security patches, and adhering to change control processes.

Preferred/Bonus Skills

• Experience with Solaris virtualisation technologies such as Zones or LDOMs.
• Working knowledge of cloud environments (AWS preferred) and hybrid infrastructure management.
• Familiarity with infrastructure-as-code (IaC) practices and tools (e.g., Terraform, Ansible).
• Exposure to container technologies (e.g., Docker) within Unix-compatible environments.

Why Join Us

• Join a forward-thinking fintech company with a strong culture of technical excellence.
• Influence core infrastructure decisions and security strategies.
• Access to cutting-edge systems and dedicated time for upskilling and certifications.
• Competitive compensation, benefits, and potential for equity participation.
• Work alongside a talented team of engineers and architects in a high-impact role.

Application Process

Please submit your CV along with a cover letter outlining your relevant experience and systems you’ve previously managed. Shortlisted candidates will be invited for:

• A technical interview covering system administration, automation, and PostgreSQL knowledge.
• A hands-on practical challenge simulating a typical system incident or maintenance scenario.

South African Citizens Only*

• Seniority level Mid-Senior level

• Employment type Full-time

• Job function Information Technology
• Industries Software Development

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