Pretoria: CNOC ENGINEER (Tshwane)

The CNOC Engineer provides advanced support and management of the organizations network and VoIP infrastructure. This role is responsible for escalated troubleshooting, configuration, and maintenance of complex RF, Fibre, and VoIP systems, ensuring optimal performance and reliability. The engineer proactively communicates with VIP clients, implements approved change plans, and provides standby support for emergencies. The position requires a highly skilled professional capable of managing complex technical environments independently, collaborating with NNOC or Tier 4 engineers as needed, and maintaining high standards of SLA compliance and customer satisfaction. Key Responsibility Areas: Handle escalations from Business Support Specialists and Field Operations teams. Monitor and perform advanced troubleshooting on all network and VoIP systems, including RF and Fibre networks; escalate complex issues to NNOC or relevant departments where required. Configure, maintain, and optimise routers, switches, servers, firewalls, and IP addressing. Program and manage VoIP platforms, VPS, and SIP firewall configurations. Conduct maintenance on core network systems and VAS products. Implement approved change plans and support emergency/outage scenarios. Maintain accurate network and VoIP documentation (network maps, IP schemas, configuration records). Respond to real-time alerts to minimise downtime and maintain network reliability. Communicate directly with VIP clients via WhatsApp, providing proactive updates and personalised assistance. Compile weekly/monthly reports: system health, ticket statistics, IP allocations, project progress. Ensure SLA compliance and high levels of customer satisfaction. Provide standby support as needed. Perform ad hoc duties as required. Key Outputs: Timely resolution of escalated tickets within SLA. Prompt diagnosis and resolution of RF and Fibre-related incidents. Accurate configuration and optimisation of network and VoIP systems. Proper escalation to NNOC or relevant teams when necessary. Proactive, timely communication with VIP clients. Up-to-date and accurate technical documentation. Reliable response to real-time alerts and system incidents. On-time submission of reports and documentation. Consistent achievement of SLA, customer satisfaction, and first-time resolution metrics. Effective standby and emergency support. Contribution to knowledge base and process improvements. WORK EXPERIENCE & COMPETENCY REQUIREMENTS 35 years experience in network engineering and/or VoIP engineering supporting complex environments. Strong proficiency in TCP/IP, DNS, DHCP, IP routing, switching, and network device configuration. Hands-on experience with MikroTik, Cisco, Juniper, or Arista equipment. Deep understanding of OSPF, BGP, and complex topologies. Experience with VoIP platforms (Asterisk, PortaOne, SBC) including programming and maintenance. Skilled in firewall administration, SIP protocols, IP addressing, and VPS setups. Experience with RF networks and VAS products is highly advantageous. Excellent troubleshooting and root-cause analysis abilities. Strong communication and reporting skills, including VIP client updates. Ability to work independently and under pressure, managing multiple priorities. Knowledge of Ubuntu/Linux environments advantageous. Experience with Ubiquiti equipment is highly advantageous. Requirements: Minimum of Grade 12 is essential MTCNA Certification (MikroTik Certified Network Associate) is required. MTCRE Certification (MikroTik Certified Routing Engineer) is recommended. Additional certifications will be advantageous. Any other relevant network, VoIP, or RF certifications will be considered a strong asset. Please note only candidates that meet the minimum requirements will be considered. Please follow our website and social media channels to be the first to know when our clients have new vacancies!