Senior Network Specialist: Multi-Site Reliability

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

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