Network Services Engineer (L1) – On-Site Operations

NTT Ltd.; Johannesburg; On-site; ZAR 420,000 - 720,000; Full time

Job summary

NTT DATA is seeking an entry- to mid-level Network Technician in Johannesburg to monitor, troubleshoot, and maintain enterprise network infrastructure. The role requires handling incidents, performing basic root-cause analysis, and contributing to change management for WAN/LAN, SD-WAN, and security controls.

You will work with Cisco/Aruba/Fortinet environments, participate in shift handovers, and support disaster recovery activities as needed.

Qualifications

• Diploma or degree in Information Technology, Computer Science, Networking, or equivalent.
• CCNA Enterprise or equivalent Cisco networking certification.
• ITIL Foundation (ITIL v4 preferred).

Responsibilities

• Monitor client network infrastructure, systems, and services for availability and performance.
• Resolve Level 1 incidents and service requests within SLAs.
• Escalate incidents and risks to appropriate teams when required.
• Perform root cause analysis and contribute to incident prevention.
• Provide multi-channel (phone, chat, ticket) support to customers and internal stakeholders.
• Assist with maintenance tasks: patching, configuration changes, system updates.
• Follow change management processes and procedures.
• Troubleshoot WAN/LAN/wireless/SD-WAN and inter-site connectivity.
• Support network security controls and deployment activities.
• Maintain network documentation and diagrams.

Skills

Networking fundamentals

Security basics

Analytical thinking

Communication skills

Team collaboration

Education

Diploma/ Degree in IT or Networking

CCNA Enterprise

ITIL Foundation

Tools

ServiceNow / 4Me/Xurrent

LogicMonitor / Grafana / Prometheus

VPN/SSL VPN

Linux scripting (basic)

Job description

NTT DATA is seeking an entry- to mid-level Network Technician in Johannesburg to monitor, troubleshoot, and maintain enterprise network infrastructure. The role requires handling incidents, performing basic root-cause analysis, and contributing to change management for WAN/LAN, SD-WAN, and security controls.

You will work with Cisco/Aruba/Fortinet environments, participate in shift handovers, and support disaster recovery activities as needed.