Senior Network Specialist

Sabenza IT & Recruitment; Johannesburg; On-site; ZAR 600,000 - 900,000; Full time

Job summary

Sabenza IT & Recruitment is seeking a Senior Network Specialist to keep the infrastructure stable, secure, and available across multiple sites for one of South Africa’s largest dairy and food businesses in Johannesburg. You’ll own day-to-day operation of the network from core to edge, including patch rooms and vendor interfaces.

You will run operational administration of routers, switches, wireless, WAN/LAN, firewalls, VPNs, DMZs, and fixed connectivity, while maintaining SLA performance and

Qualifications

• Matric plus a National Diploma or Bachelor’s degree in IT.
• CCNA and CCNP (or equivalent depth).
• CompTIA Network+ is useful; Fortinet, Palo Alto, or other firewall certifications are strongly preferred.
• ITIL Foundation.
• Solid hands-on experience with enterprise LAN/WAN/wireless, firewalls, VPNs, and DMZs.
• Proven ability to work with ISPs and managed service providers.
• Clear documentation habits and the ability to talk to both technical and non-technical people without creating more problems.

Responsibilities

• Run the operational administration of routers, switches, wireless, internet, WAN, and LAN infrastructure.
• Manage firewall, VPN, DMZ, APN, proxy, and fixed connectivity (fibre and Ethernet).
• Keep network performance and availability inside SLA, working with the outsourced NOC and fixing issues before they become outages.
• Work with ISPs and third-party providers on incidents, maintenance, and upgrades.
• Handle user calls and incidents daily.
• Maintain accurate network diagrams, logical maps, SOPs, and configuration documentation.
• Drive or support small network projects, upgrades, and continuous improvement.

Skills

LAN/WAN/Wireless

Firewalls

VPNs

DMZs

Documentation

ISPs coordination

Education

Bachelor's degree in IT

CCNA

CCNP

CompTIA Network+

Fortinet / Palo Alto certificates

ITIL Foundation

Job description

Johannesburg, South Africa

The network doesn’t manage itself. (Unfortunately.)

Senior Network Specialist to keep the infrastructure stable, secure, and available across every site. You’ll own the day-to-day running of the network that supports one of South Africa’s largest dairy and food businesses from the core to the edge, from the patch rooms to the vendors.

What you’ll actually do

• Run the operational administration of routers, switches, wireless, internet, WAN, and LAN infrastructure.
• Manage firewall, VPN, DMZ, APN, proxy, and fixed connectivity (fibre and Ethernet).
• Keep network performance and availability inside SLA, working with the outsourced NOC and fixing issues before they become outages.
• Work with ISPs and third-party providers on incidents, maintenance, and upgrades.
• Handle user calls and incidents daily.
• Maintain accurate network diagrams, logical maps, SOPs, and configuration documentation.
• Drive or support small network projects, upgrades, and continuous improvement.

Requirements

What you need

• Matric plus a National Diploma or Bachelor’s degree in IT.
• CCNA and CCNP (or equivalent depth).
• CompTIA Network+ is useful; Fortinet, Palo Alto, or other firewall certifications are strongly preferred.
• ITIL Foundation.
• Solid hands-on experience with enterprise LAN/WAN/wireless, firewalls, VPNs, and DMZs.
• Proven ability to work with ISPs and managed service providers.
• Clear documentation habits and the ability to talk to both technical and non-technical people without creating more problems.

If you know how to keep a multi-site network reliable, document it properly, and stop small issues from becoming large ones, this is the role.