Senior Network Engineer

Sabenza It & Recruitment; Gauteng; On-site; ZAR 700,000 - 900,000; Full time

Job summary

Sabenza IT & Recruitment are seeking a Senior Network Engineer to oversee day-to-day network operations across multiple sites in South Africa. The role focuses on ensuring stable, secure, and efficient network services, meeting SLAs, and documenting architecture and processes.

You will manage routers, switches, wireless, WAN/LAN, VPNs, firewalls, and related infrastructure, while coordinating with NOC, vendors, and users to resolve incidents and drive improvements.

Qualifications

• Matric and National Diploma or Bachelor's Degree in Information Technology.
• Cisco Certified Network Professional (CCNP)
• CompTIA Network+
• Fortinet / Palo Alto / firewall-related certifications
• ITIL Foundation

Responsibilities

• Operate network infrastructure across all sites ensuring availability and performance.
• Maintain and update network documentation and diagrams.
• Monitor SLAs and coordinate with NOC and vendors for incident resolution.
• Lead small network-related projects and optimisation initiatives.
• Provide clear communication with users and support teams.

Skills

Enterprise networking

LAN/WAN/Wireless

Firewalls & VPNs

Documentation skills

Vendor/ISP liaison

Troubleshooting

Communication

Education

Matric, Diploma or Bachelor's in IT

Tools

CCNP

CompTIA Network+

Fortinet

Palo Alto

ITIL Foundation

Job description

We are seeking a Senior Network Engineer who will be responsible for the day-to-day operational administration, availability, performance, and documentation of the network infrastructure across all sites. This role ensures stable, secure, and efficient network services while meeting agreed service levels and supporting business operations.

Responsibilities

Network Infrastructure Operations

• Perform day-to-day operational administration of network infrastructure, including: Routers, switches, and wireless infrastructure.
  
• Internet access services.
  
• Wide Area Network (WAN) infrastructure and services.
  
• Local Area Network (LAN) infrastructure and services.
  
• Manage and support:
  
• DMZ, firewall, VPN, APN, and proxy infrastructure and services.
  
• Fixed infrastructure, including fibre and Ethernet cabling.
  
• Maintain and oversee network patch rooms and network-related areas across all Clover sites
  

Performance & Monitoring

• Ensure system performance and availability targets are met in line with agreed Service Level Agreements (SLAs).
  
• Monitor network infrastructure through the outsourced Network Operations Centre (NOC).
  
• Proactively identify and resolve network performance, availability, and security issues.
  
• Work closely with third-party service providers to ensure efficient operations and service delivery.
  
• Coordinate with vendors for incident resolution, maintenance, and upgrades.
  
• Liaise daily with users and resolve network-related calls and incidents.
  

Documentation & Standards: Create, maintain, and update:

• Network architecture diagrams for all Clover installations.
  
• Logical network diagrams within the assigned area of responsibility.
  
• Standard Operating Procedures (SOPs) within area of responsibility.
  
• Accurate and up-to-date documentation for network configurations and processes.
  

Projects & Continuous Improvement

• Manage and participate in small network-related projects within area of responsibility.
  
• Assist with network upgrades, changes, and optimisation initiatives.
  
• Identify opportunities to improve network reliability, performance, and operational efficiency.
  

Qualifications:

• Matric and National Diploma or Bachelor's Degree in Information Technology.
  
• Cisco Certified Network Professional (CCNP)
  
• CompTIA Network+
  
• Fortinet / Palo Alto / firewall-related certifications
  
• ITIL Foundation
  

Skills

• Strong knowledge of enterprise networking (LAN, WAN, wireless).
  
• Understanding of firewalls, VPNs, DMZs, and security best practices.
  
• Experience working with ISPs and managed service providers.
  
• Strong troubleshooting and problem-solving skills.
  
• Ability to document technical environments clearly and accurately.
  
• Good communication skills with both technical and non-technical users.
  

Requirements

• Enterprise Netwroking, VPNs, DMZs, ISPs