L1 Network Engineer – Hands-On Networking & Security

NTT America, Inc.; Rustenburg; On-site; ZAR 300,000 - 520,000; Full time

Job summary

NTT DATA in Rustenburg, South Africa, is seeking a L1 Network Engineer to support, monitor, and troubleshoot enterprise network infrastructure. You will work with routers, switches, wireless APs, and firewalls, under guidance from senior engineers, ensuring uptime, performance, and security across LAN/WAN environments.

Responsibilities include incident response, routine maintenance, documentation, and collaboration with server, cloud, and cybersecurity teams.

Qualifications

• Solid foundation in networking concepts and protocols.
• Relevant IT degree or formal training in networking.
• Experience with enterprise network environments is beneficial.
• Professional certifications (CCNA, Huawei, CompTIA Network+) are advantageous.

Responsibilities

• Monitor and support network performance and availability.
• Install, configure, and maintain routers, switches, wireless access points, and firewalls.
• Troubleshoot connectivity issues and escalate when needed.
• Maintain network diagrams and documentation.
• Support security monitoring and incident response activities.
• Assist with network deployment projects and site rollouts.

Skills

TCP/IP

DNS

DHCP

VLANs

Subnetting

Routing & Switching

Network Troubleshooting

LAN/WAN technologies

Wireless networking

VPN technologies

Firewall fundamentals

Network monitoring tools

Windows Server

Windows 11

ITIL

Microsoft Office Suite

IT Service Management tools

Cybersecurity fundamentals

Education

Information Technology

Computer Science

Information Systems

Computer Engineering

Telecommunications

Network Engineering

Related technical discipline

Tools

Huawei

Fortinet

CCNA

CompTIA Network+

Azure Fundamentals

Job description

NTT DATA in Rustenburg, South Africa, is seeking a L1 Network Engineer to support, monitor, and troubleshoot enterprise network infrastructure. You will work with routers, switches, wireless APs, and firewalls, under guidance from senior engineers, ensuring uptime, performance, and security across LAN/WAN environments.

Responsibilities include incident response, routine maintenance, documentation, and collaboration with server, cloud, and cybersecurity teams.