IT Network Engineer

IT Network Engineer – ITNE0421
Applications accepted until:
Number of Openings


Head Office


Sandton – Central Office

Job Purpose

The IT Network Engineer will be responsible for the planning, design, and technical specifications required to deliver high-availability network infrastructure to sustain online and on-site information technology activities. This will include designing and implementing network configurations, carrying out network monitoring and configuration of security systems such as firewalls; monitoring bandwidth, network performance, and capacity requirements; researching, planning and integrating new technologies into the network lifecycle; and troubleshooting performance issues, with the aim of ensuring network performance in line with agreed service levels and in a manner that is professional, reliable, and in line with business and regulatory requirements.


This role will be required to ensure all practices are in line with policy, frameworks and tools based on researched leading and industry practice, technical solutions, specialised projects and innovation, and legislative support to advise, enable and support business operations in achieving their objectives.


  • BTech or relevant Equivalent
  • CCNP
  • CCNA: Wireless


  1. Minimum of 8 years relevant IT industry experience with 5 years supporting routing, switching and Wi-Fi data networks
  2. Demonstratable experience with designing and deploying wireless network Infrastructure
  3. Demonstratable experience with Project Management

Skills and Knowledge

  • Expert level in routing and switching concepts
  • Networking solutions
  • Data Centre Infrastructure design and planning
  • IT security assessment and planning
  • Networking software
  • Certified on Cisco Security product offerings
  • F5 Load Balancing technologies
  • Capacity Planning
  • Server and client infrastructure setup
  • Wireless network design, architecture and operations
  • Windows and Unix based guest operating systems
  • Project Management
  • Analysing
  • Creating and improving
  • Sourcing information
  • Applying expertise and technology
  • Taking ownership
  • Responding with urgency
  • Collaborating

Key Performance Areas:

  • Act as the owner and technical expert for all network related projects (including routing and switching and WiFi components) and the resolution of technical issues related to the network infrastructure for the Sun International group
  • Act as 2nd level support and escalation point for all network related incidents and problems
  • Design system installations and configurations and define, document and enforce system standards
  • Design and implement new solutions and improve resilience of the current environment, administering the firewall in line with IT security policy
  • Evaluate and diagnose network infrastructure faults, troubleshoot and identify root causes and provide working solutions based on data analysis and trends.
  • Work with project teams to facilitate the delivery of network solutions, projects and upgrades
  • Define and optimize an integrated monitoring structure aimed to detect potential issues related to network systems
  • Install and integrate new network hardware and applications with the correct levels of security requirements
  • Maximise network performance by monitoring and troubleshooting network problems and outages, scheduling upgrades to ensure network optimisation (availability, utilization, throughput, and latency) and test for weaknesses
  • Make recommendations on network components or equipment to improve system performance
  • Produce and maintain documentation, diagrams, written and electronic repositories of documentation concerning day-to-day network operations and change management to assure consistency in daily operations
  • Report on network operational status by gathering and prioritising information
  • Manage SLA process, performance and billing with vendors around technical network requirements and support
  • Provide technical coaching and mentoring to colleagues in the area of routing, switching and Wifi at unit level
  • Provide remote support to on-site engineers and end users/customers


Preference will be given to employees from the designated groups in line with the provisions of the Employment Equity Act, No. 55 of 1998, SISA internal recruitment policy as well as units employment equity plans.