Network Engineer - L2

NTT Ltd.; Rustenburg; On-site; ZAR 350,000 - 520,000; Full time

Job summary

NTT DATA is seeking a focused L2 Network Engineer in Rustenburg to support, maintain, and troubleshoot our enterprise network infrastructure. You will work with routers, switches, WLANs, firewalls, and monitoring tools to ensure high availability and security.

The role requires knowledge of TCP/IP, routing & switching, and network security concepts, with opportunities to grow through training and certifications. This on-site position emphasizes collaboration with IT teams across the organization.

Qualifications

• Formal IT/Network engineering education or related discipline.
• Knowledge of enterprise networking concepts and protocols.
• Familiarity with security and compliance practices.

Responsibilities

• Monitor network performance and availability with management tools.
• Install, configure and maintain routers, switches, WLANs, and firewalls.
• Troubleshoot connectivity issues and escalate when needed.
• Maintain network diagrams and documentation.
• Support security monitoring, incident response, and vulnerability remediation.
• Assist in network deployment projects and upgrades.
• Stay current with networking technologies and certifications.

Skills

TCP/IP

DNS

DHCP

VLANs

Subnetting

Routing & Switching

Network Monitoring

ITIL

Cybersecurity basics

Windows Server

Education

Information Technology

Computer Science

Information Systems

Computer Engineering

Telecommunications

Network Engineering

Related technical discipline

Tools

ServiceNow

Job description

Make an impact with NTT DATA

Join a company that is pushing the boundaries of what is possible. We are renowned for our technical excellence and leading innovations, and for making a difference to our clients and society. Our workplace embraces diversity and inclusion – it’s a place where you can grow, belong and thrive.

Your day at NTT DATA

The L2 Network Engineer is responsible for supporting, maintaining, and troubleshooting the organization’s network infrastructure. This role provides an excellent opportunity for individuals looking to build a career in networking by gaining hands‑on experience with network equipment, monitoring tools, security technologies, and enterprise IT environments. The successful candidate will work closely with senior engineers to ensure the availability, performance, and security of network services.

Key Roles and Responsibilities

Huawei Network Operations & Support

• Monitor network performance and availability using network management tools.
• Assist with the installation, configuration, and maintenance of network devices, including routers, switches, wireless access points, and firewalls.
• Perform basic network troubleshooting and resolve connectivity issues.
• Escalate complex network incidents to senior engineers when required.
• Support Local Area Networks (LAN), Wireless LAN (WLAN), and Wide Area Networks (WAN).

Incident and Problem Management

• Respond to network-related incidents and service requests within agreed service levels.
• Investigate root causes of recurring network issues.
• Participate in troubleshooting data, and wireless networking problems.
• Document incidents, resolutions, and troubleshooting procedures.

Network Maintenance

• Assist with software upgrades, patching, and firmware updates for network devices.
• Perform routine health checks and preventative maintenance activities.
• Support network backup and recovery processes.
• Maintain accurate network diagrams and documentation.

Security and Compliance

• Assist in implementing network security controls and standards.
• Monitor firewall logs, network alerts, and security events.
• Ensure compliance with organizational security policies and procedures.
• Support vulnerability assessments and remediation activities.

Project Support

• Assist with network deployment projects and infrastructure upgrades.
• Participate in testing and validating new network solutions.
• Support equipment installations and office/site network rollouts.
• Collaborate with other IT teams including server, cloud, desktop, and cybersecurity teams.

Continuous Learning

• Stay current with networking technologies and industry best practices.
• Participate in training, certification programs, and technical workshops.
• Develop knowledge of enterprise networking, cloud networking, and cybersecurity fundamentals.

Minimum Qualifications

Education

• Information Technology
• Computer Science
• Information Systems
• Computer Engineering
• Telecommunications
• Network Engineering
• Related technical discipline

Certifications (Advantageous)

• Huawei
• Cisco Certified Network Associate (CCNA)
• CompTIA Network+
• Fortinet NSE Associate
• Microsoft Certified: Azure Fundamentals

Required Technical Skills

Networking Fundamentals

• TCP/IP
• DNS
• DHCP
• VLANs
• Subnetting
• Routing and Switching
• Network Troubleshooting

Network Technologies

• LAN/WAN technologies
• Wireless networking concepts
• VPN technologies
• Firewall fundamentals
• Network monitoring tools

Operating Systems

• Windows Server
• Windows 11

Additional Skills

• ITIL
• Microsoft Office Suite
• IT Service Management tools (ServiceNow, etc.)
• Understanding of cybersecurity principles

Behavioural Competencies

• Strong analytical and problem-solving skills.
• Excellent verbal and written communication.
• Customer-service oriented.
• Ability to work independently and as part of a team.
• Attention to detail and accuracy.
• Willingness to learn and adapt to new technologies.
• Ability to work under pressure and manage multiple priorities.

Preferred Experience

• 5-10 years of IT or network support experience.
• Internship, graduate program, or practical networking laboratory experience.
• Exposure to enterprise networking environments.
• Experience with Huawei, Fortinet, or similar technologies is advantageous.
• Key Performance Indicators (KPIs) Incident resolution within SLA targets.
• Network uptime and availability.
• Accuracy of network documentation.
• Successful completion of assigned project tasks.
• Compliance with security and operational standards.
• Completion of technical training and certifications.

Workplace type

On-site Working

About NTT DATA

NTT DATA is a $30+ billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world’s leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services. Our consulting and industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 70 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners. NTT DATA is part of NTT Group, which invests over $3 billion each year in R&D.

Equal Opportunity Employer

NTT DATA is proud to be an Equal Opportunity Employer with a global culture that embraces diversity. We are committed to providing an environment free of unfair discrimination and harassment. We do not discriminate based on age, race, colour, gender, sexual orientation, religion, nationality, disability, pregnancy, marital status, veteran status or any other protected category. Join our growing global team and accelerate your career with us.

Third parties fraudulently posing as NTT DATA recruiters

NTT DATA recruiters will never ask job seekers or candidates for payment or banking information during the recruitment process, for any reason. Please remain vigilant of third parties who may attempt to impersonate NTT DATA recruiters whether in writing or by phone in order to deceptively obtain personal data or money from you. All email communications from an @nttdata.com email address. If you suspect any fraudulent activity, please contact us.