Role: Snr Network Support Engineer (Voice) (Level 3)
Location: Illovo, Johannesburg

A leading ISP is looking for an experience Snr Network/Voice Support Engineer to join their dynamic team. Support Engineers are their professional technical resources responsible for providing first class support to a wide range of customers, across multiple platforms. It is a busy and exciting working environment and they offer lots of growth and development.
Experience required:

  • Proficiency in network routing and switching protocols (e.g., BGP, OSPF, VLANs, STP) and voice technologies such as VoIP, SIP, and unified communications.
  • Strong understanding of network security principles and best practices, including firewall configuration, VPN implementation, and threat mitigation strategies.
  • Hands-on experience with network and voice hardware and software from leading vendors, such as Cisco, Juniper, Avaya, Microsoft, and others.
  • Excellent analytical and problem-solving skills, with the ability to troubleshoot complex network and voice issues and drive resolution to completion.
  • Outstanding communication and interpersonal skills, with the ability to effectively communicate technical concepts to non-technical stakeholders and influence decision-making.
  • Demonstrated leadership abilities, with a proven track record of successfully leading network and voice projects and delivering exceptional results for clients.
  • Technical Support: Provide expert-level technical support and troubleshooting assistance to clients or internal teams on networking infrastructure components, including routers, switches, firewalls, and wireless access points.
  • Diagnose and resolve network connectivity issues, performance problems, and security vulnerabilities promptly and efficiently.
  • Analyze network traffic patterns and performance metrics to identify potential bottlenecks, anomalies, or areas for optimization.
  • Collaborate with clients, network administrators, and other stakeholders to understand requirements, troubleshoot problems, and implement effective solutions.
  • Availability for occasional travel to client sites and participation in after-hours support and on-call rotations as needed


  • Tertiary qualification: Degree/Diploma
  • CCNP (Cisco Certified Network Professional) preferred
  • CCVP (Cisco Certified Voice Professional), or equivalent preferred

Desired Skills:

  • Network Engineer
  • Voice Engineer
  • ISP
  • CCNP
  • CCVP

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