Network Administrator

Location: Roodepoort Gauteng (Full-time On-site)
Contract Type: Fixed-Term Contract (Initial 12 Months)

Are you an experienced Network Administrator with a passion for ensuring reliable secure and high-performing enterprise network infrastructure

Our client is seeking a Network Administrator to oversee the day-to-day operational administration availability performance and documentation of network infrastructure across multiple sites. This role is responsible for ensuring stable secure and efficient network services while meeting agreed service levels and supporting business 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 sites.

• 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.

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

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

• Matric.
• National Diploma or Bachelors Degree in Information Technology.
• Cisco Certified Network Associate (CCNA).
• Cisco Certified Network Professional (CCNP).
• CompTIA Network.
• Fortinet Palo Alto or other firewall-related certifications.
• ITIL Foundation.

• Strong knowledge of enterprise networking (LAN WAN and wireless).
• Understanding of firewalls VPNs DMZs and network 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.

• Initial 12-month fixed-term contract.
• Full-time on-site role based in Roodepoort.
• Opportunity to support and maintain enterprise network infrastructure across multiple sites.
• Exposure to a complex networking environment with a focus on operational excellence security and continuous improvement.
• Collaborative environment working alongside internal teams and third-party service providers.

If you are an experienced Network Administrator with a passion for enterprise networking and delivering reliable secure infrastructure wed love to hear from you.