130 Senior Network Engineer jobs in South Africa

We are the tech company with people at heart. At Advania, we believe in empowering people to create sustainable value through the clever use of technology. As one of Microsoft's leading partners in the UK, specialising in Azure, Security, Dynamics 365, and Microsoft 365, we have a proven track record of success in delivering transformational IT services.

As a Network Engineer, you will serve Advania’s clients by designing and implementing network configurations, and troubleshooting performance issues on devices like firewalls, routers, and switches.

• Assisting in scoping and design where required
• Creating, updating, maintaining, and reviewing network documentation
• Creating knowledge articles within Service Now
• Managing risk and downtime during maintenance windows
• Working with internal and external stakeholders to resolve network and security tasks
• Taking ownership and performing effective incident investigation applying sound problem-solving methods to determine scope, urgency, and potential impact across a wide range of IT systems.
• Taking ownership of tasks allocated and professionally manage them through to resolution or escalation

• Experience of working in a 2nd line support level role or above
• Experience of configuring firewalls end-to-end (preferably Palo Alto, Meraki, Azure, Checkpoint, or Fortigate)
• Possess a good understanding of Routing, Including Static routing and dynamic routing (BGP and OSPF)
• Have a solid grasp of key ITSM processes, including Incident Management, Change Management, and Problem Management
• Ability to analyse and evaluate networks, identify issues and provide solutions to ensure networks are operating efficiently
• Ability to design, implement and troubleshoot Wi-Fi and security infrastructure
• Ability to communicate technical information to other technical team members but also to co-workers in other departments who may not have knowledge of networking technical terminology

The budgeted salary for this role is between 35,000 and 45,000 ZAR per month , depending on experience.

Our current hybrid working policy necessitates being in the office or at a client site 1 day per week. Each team within our organisation can decide how to implement this policy. If you have any questions after applying, please reach out to our recruitment team.

We are committed to ensuring an equitable experience for all candidates, regardless of race, religion or belief, ethnic or national origin, disability, age, citizenship, marital, domestic or civil partnership status, sexual orientation, gender identity, or any other basis as protected by applicable law.

Please do let us know if you’ll need any reasonable adjustments as part of the selection process by highlighting these on your application form.

As part of our commitment to our clients we will need to carry out background checks, including a criminal record check, for all offers of employment. If you have any unspent criminal convictions or questions about the screening process, please notify your recruiter once the application has been submitted.

• Mid-Senior level

• Full-time

• Information Technology

• IT Services and IT Consulting

Add expected salary to your profile for insights

Ocius Technology is an Australian company dedicated to developing and deploying cutting edge Uncrewed Surface Vehicles (USVs). Our vessel's harness Wind, Solar and Wave power to remain at sea collecting vital data for Defence and Civilian applications.

About the Role

The Network Engineer will work closely with CISO to continually uplift and develop our network capability to ensure continual secure and uninterrupted communication within the organisation and with our fleet of Bluebottle USVs.

The ITServices team is responsible for the Ocius’s day-to-day IT support and network capability. The team are instrumental in ensuring the wider company can function, including ensuring our Bluebottle platforms can function effectively at sea

What You'll Do

Design modern LAN and WAN networks with integrated security.

Deploy and maintain networksusing Infrastructure as Code.

Maintain legacy network infrastructure at Ocius and client locations.

Provide end-to-end network engineering support, from planning and estimating through to post-deployment assistance.

Develop and refine technical documentation for network design, deployment, and ongoing maintenance.

Attend and contribute to meetings with clients and stakeholders as required.

Maintain compliance with Ocius policies and best practices in all network-related work.

Selection Criteria

Bachelor's degree in Information Technology (or related) or equivalent TAFE qualifications with experience.

Proven experience designing and implementing complex networks, ideally using infrastructure as code.

Experience working with virtual infrastructure (cloud or on-premise).

Experience working with remote sites or unreliableconnections, including 4G/5G, satellite and mesh radio systems.

Ability to create clear and concise technical documentation for existing and new networks.

Familiarity with network security best practice, ideally in a defence setting.

If you're an excellent communicator and highly motivated to deliver high performing networks, we encourage you to apply!

Due to the nature of our business, we require Australian Citizenship for all roles and the ability to obtain and maintain an NV1 security clearance.

No recruiters please

Salary match Number of applicants Skills match

Your application will include the following questions:

Which of the following statements best describes your right to work in Australia? How many years' experience do you have as a network engineer? Do you hold Australian Security Clearance? Have you completed a qualification in ICT? Have you worked in a role where you were responsible for authoring and reviewing technical documentation? What's the highest level of Cisco collaboration certification that you have completed?

To help fast track investigation, please include here any other relevant details that prompted you to report this job ad as fraudulent / misleading / discriminatory.

Teraco Data Environments

2025/07/03 Gauteng

Job Reference Number: NE_JB1

Department: IT

Business Unit

Industry: Information Technology

Job Type: Permanent

Positions Available: 1

Salary: Market Related

The key function of this position is to be a technical support resource to support the local network for Power Monitoring, IT and Security. Part of the duties will be to travel to the outside stations on an ad hoc basis for upgrades and changes. This role must be available to work after hours and be on standby from a standby roster.

Job Description

PURPOSE OF THE ROLE

The key function of this position is to be a technical support resource to support the local network for Power Monitoring, IT and Security. Part of the duties will be to travel to the outside stations on an ad hoc basis for upgrades and changes. This role must be available to work after hours and be on standby from a standby roster. This role will also need you to be the escalation point for the Tier 1 resource.

Main Functions Of The Job

The main functions of the role are, but are not limited to:

• Remote IT Network troubleshooting and support, predominately layer 2;
• Logging and updating calls via the ticketing system;
• Interaction with other providers and service providers;
• Interactive relationship with management;
• Maintenance of Security, IT and Environmental networks on all sites;
• Maintaining Wi-Fi on all sites including monthly wi-fi health reports;
• Maintain the Network backup tool;
• Involvement in the design of the network & maintain network documentation;
• Configuring, Installing and maintenance of network switches;
• Management & implementation of Clearpass switch configurations & implementation of device configuration updates;
• Comply to all policies and procedures, including strict compliance to Teraco’s information security policies and procedures;
• Identification & escalation of information security risk, as it relates to network and other areas of responsibility;
• Incident response and management; Problem resolution within agreed timelines;
• Afterhours user support, as per the standby roster.
  
  

• Excellent interpersonal relations.
• Excellent verbal and writing skills.
• Attention to detail imperative.
• Ability to multi-task is essential.
• Able to perform under pressure.
• Ability to adapt to change.
• Open to learning and growth essential.
• Take accountability and ownership.
  
  

• Matric;
• Technical qualification /IT Diploma - CCNA/ACMA certified; CCNP advantageous;
• Minimum of 2 years’ work experience in a networking technical support role;
• Accustomed to working in a high-energy environment;
• Windows Server and Windows 10/11 experience - advantageous
• Technical competence and understanding is vital;
• Valid South African Driver’s License;
• Basic understanding of Network Security
• Excellent understanding of switching and routing and their related technologies - TCP/IP, IP Addressing, CIDR and DNS. STP, VPN technologies, OSPF, ZTNA, SDN.

• Execute network deployment, migration, and upgrades based on design specifications
• Install and configure network equipment
• Participate in structured rollouts and infrastructure refresh projects
• Conduct scheduled preventative maintenance and apply firmware updates
• Monitor and optimize network performance across switching, routing, and firewalls
• Maintain accurate and up-to-date network documentation
• Update diagrams, configurations, and standard procedures
• Generate routine reports on network performance and incidents

• Minimum 3 years of experience supporting enterprise network environments
• Strong understanding of IP networking, routing/switching fundamentals, and firewall configuration
• Certifications:
  • CompTIA Network+ or Security+
  • Cisco CCNA Security
  • PaloAlto PCNSA
  • Vendor-specific (e.g., Arista and Mellanox)
• Experience with SD-WAN (VeloCloud preferred)
• VOIP fundamentals, including SIP, RTP, and QoS
• Exposure to cloud networking (Azure or AWS)
• Familiarity with scripting (Python and PowerShell) and network automation
• Hands-on with wireless networking (Meraki)
• Network performance monitoring and management platforms

Are you passionate about building and maintaining cutting-edge network systems? 

Our client is looking for a talented Network Engineer who will collaborate with cross-functional teams, troubleshoot network issues, and implement best practices to optimise network performance and security.

What you’ll do:

• Design and deploy functional networks (LAN, WLAN, WAN).
• Configure and install various network devices and services (routers, switches, firewalls, load balancers).
• Perform network maintenance and system upgrades, including service packs, patches, hotfixes, and security configurations.
• Monitor network performance, analyse network traffic, and optimize network infrastructure.
• Collaborate with vendors and other IT personnel for problem resolution.
• Evaluate and recommend security improvements and system enhancements to optimize network security and performance.
• Create and maintain comprehensive network documentation.
• Provide technical support to end-users and other IT teams.
• Stay up-to-date with current network technologies and industry best practices by attending networking workshops and pursuing certifications.

Your expertise:

• 3+ years proven work experience as a Network Engineer or similar role in network administration.
• In-depth knowledge of network infrastructure, protocols, and security solutions.
• Hands-on experience with networking devices and network diagnostic tools.
• Familiarity with operating systems (Windows, Linux), databases, and virtualisation.

Qualifications:

• Professional Certification such as Cisco Certified Network Professional (CCNP), CompTIA Network+, or equivalent.

Other information applicable to the opportunity:

• Permanent Position
• Location: Centurion
• Work environment: Hybrid (2 Days in Office, 3 Days at Home)

• Review client requirements and collaborate with other IT engineers to define the optimal networking and firewalling solutions in accordance with organisational policies.
• Design and implement new network solutions and/or improve the efficiency of current networks.
• Configure firewalls for usage, manage their day-to-day operations and perform regular maintenance through upgrades and patches to ensure optimal performance, maximise network efficiency and security.
• Configure, manage and maintain secure intra- and inter-organisational communication channels, such as VPNs and IPSec tunnels.
• Perform quarterly firewall health checks removing unnecessary rules, interfaces, etc. and optimising rules where possible.
• Assist with the installation, configuration and support of network equipment across the LAN, WLAN, WAN and SD-WAN, both wired and wireless.
• Participate in cross-functional troubleshooting support for internal and external clients and network fault investigations.
• Liaise with network service providers and vendors, ensuring service level agreements are met and organisational policies and principles adhered to.
• Maximise network performance through ongoing monitoring and optimisation.
• Ensure supporting documentation and diagrams remain up to date.
• Ensure all network equipment is sufficiently secured (logically and physically), so that no unauthorised access can be gained.
• Provide monthly reporting as required.
• Maintain Network Monitoring Tools
• Configure, Manage and Support Network Access Control (NAC) Systems