Network Administrator

Stefanutti Stocks Group; Gauteng; On-site; ZAR 360,000 - 520,000; Full time

Job summary

Stefanutti Stocks Group is seeking a Network Administrator to design, implement and maintain our LAN/WAN and wireless networks in a Gauteng environment. You will configure switches, routers, firewalls and VPNs, manage VLANs and IP schemes, and monitor performance and capacity across sites.

The role includes server and virtualization tasks and collaboration with IT teams. The ideal candidate has 2–4 years in network administration, practical MikroTik/UniFi/OPNsense experience, and strong

Qualifications

• Must-have IT qualification or equivalent practical experience.
• Certifications in MikroTik, Network+, Microsoft or equivalent are advantageous.
• Strong understanding of TCP/IP, VLANs, routing and DNS is required.
• Excellent documentation and communication skills are essential.

Responsibilities

• Administer and maintain LAN, WAN and wireless network infrastructure.
• Configure and troubleshoot switches, routers, firewalls and VPNs.
• Manage VLANs, IP addressing, DHCP, DNS and routing.
• Monitor network performance, availability and capacity.
• Diagnose and resolve network connectivity and performance issues.
• Assist with network security, firewall administration and access controls.
• Maintain network diagrams and IP addressing records and infrastructure docs.
• Participate in network upgrades and new site deployments.
• Provide support to IT User Support and IT Operations teams.
• Assist with server administration, virtualization and backups.

Skills

TCP/IP

VLANs

Subnetting

Routing

DHCP and DNS

Troubleshooting

Windows administration

Documentation

Communication skills

Proactive problem-solving

Education

IT qualification or equivalent

Certs: MikroTik/Network+/Microsoft (adv)

Tools

MikroTik

UniFi

OPNsense/PfSense

Job description

Key Responsibilities:

• Administer and maintain LAN, WAN and wireless network infrastructure.
• Configure and troubleshoot switches, routers, firewalls, wireless access points and VPNs.
• Manage VLANs, IP addressing, DHCP, DNS, routing and network segmentation.
• Monitor network performance, availability and capacity.
• Diagnose and resolve network connectivity and performance issues.
• Assist with network security, firewall administration and access controls.
• Maintain network diagrams, IP addressing records, configurations and infrastructure documentation.
• Participate in network upgrades, infrastructure projects and new site deployments.
• Provide technical support and escalation assistance to the IT User Support and IT Operations teams.
• Assist with Windows/Linux server administration, virtualisation, backups and other systems administration tasks.
• Work with external service providers and technology vendors when required.

Qualifications:

• Relevant IT qualification or equivalent practical experience.
• MikroTik, Network+, Microsoft or equivalent certifications (advantageous).

Skills:

• Strong understanding of TCP/IP, VLANs, subnetting, routing, DHCP and DNS.
• Strong troubleshooting and analytical skills.
• Working knowledge of Microsoft Windows.
• Good documentation and communication skills.
• A proactive approach to identifying and resolving infrastructure problems.

Experience:

• 2-4 years' experience in network administration or a similar infrastructure role.
• Practical experience with switches, firewalls, wireless networks and VPNs.
• Some practical experience with server or systems administration.
• Experience with MikroTik, UniFi, OPNsense/pfSense or similar platforms (advantageous).
• Experience with network monitoring and IPAM systems (advantageous).
• Linux administration (advantageous).
• VMware, Hyper-V or Proxmox (advantageous).
• RADIUS, 802.1X or network access control (advantageous).
• Scripting or network automation (advantageous).
• Network security experience (advantageous).

We are committed to Employment Equity when recruiting internally and externally. It is company policy to promote from within wherever possible. Therefore, please be aware that internal candidates will be considered first before reviewing external applicants, provided that this supports the achievement of our Employment Equity goals.