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Johannesburg: Senior Network & System Administrator

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Job Description

About the Role

A well-established client in Johannesburg is seeking an experienced Senior Network & Systems Administrator to join their team. The ideal candidate will be responsible for managing and optimising their IT infrastructure across multiple sites, ensuring seamless network performance and uptime.

Key Responsibilities

  • Manage and maintain LAN, WAN, VPN, VLANs, and Wi-Fi networks
  • Monitor performance, troubleshoot issues, and ensure uptime
  • Configure and maintain routers, switches, and firewalls
  • Oversee network security, backups, and disaster recovery
  • Support Microsoft 365, Active Directory, and cloud environments
  • Maintain servers, virtualization (Hyper-V), and system performance
  • Lead upgrades, installations, and infrastructure improvements
  • Provide support on escalations and mentor junior IT staff

Requirements

  • Matric with relevant IT certifications (A, N, MCITP, Network Security)
  • Diploma in IT Systems Administration (advantageous)
  • Minimum 5 years’ experience in network and systems administration
  • Strong experience with TCP/IP, DNS, DHCP, VLANs
  • Firewalls, VPNs, and MikroTik RouterOS
  • Windows Server (2019/2022) & Windows 10/11
  • Microsoft 365 & Active Directory

Qualifications

  • Formal education/certifications not specified.

Salary & Benefits

  • Salary details not mentioned in the original job description.

How to Apply

Click the green “Go Apply” button below to apply directly online with the employer.

About IT / Computing / Software Jobs in Gauteng

In Gauteng, the IT and computing industry is a significant contributor to the province’s economy, with a steady demand for skilled professionals. Typically, this field is characterized by rapid technological advancements, innovative projects, and a high level of job satisfaction among employees. Generally, career prospects in this sector are strong, with a range of opportunities available across various industries.

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Salaries for IT and computing professionals in Gauteng can vary widely depending on factors such as experience, company size, and industry sector. While it is common to see salaries ranging from R400 000 to R1,200 000 per annum, these figures are only a general guideline and actual salaries may differ significantly. For instance, senior executives or technical leads with extensive experience may command higher salaries, while entry-level positions may start at lower levels.

Common skills required for IT and computing roles in Gauteng include proficiency in programming languages such as Java, Python, or C++, knowledge of cloud platforms like AWS or Azure, and experience with agile development methodologies. Additionally, understanding of data analysis and interpretation, cybersecurity principles, and IT project management are often essential. Familiarity with popular software applications, such as Microsoft Office 365 or Google Workspace, is also beneficial.

The financial services sector, technology industry, manufacturing sector, and government departments are among the common industries that employ IT and computing professionals in Gauteng. These sectors require a range of skills and expertise, from data analysis to network administration, making them attractive options for career development.

For those seeking a career in IT and computing, there are numerous opportunities for professional growth and development. Typically, career progression involves moving into senior roles or specialized positions, such as technical lead, solutions architect, or data scientist. Opportunities for further education and training, such as certifications or postgraduate studies, can also enhance job prospects. Generally, a strong understanding of industry trends, networking, and continuous learning are essential for success in this field.

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This information provides general career guidance. Actual salaries and requirements vary by employer.



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