78 Network Engineer Positions jobs in South Africa

Company Description

Duxbury Networking has been a leader in specialized networking distribution for over forty years. We offer channel partners and their customers a full suite of technical solutions, distinguished by our value-added technical services and expert support. Our product portfolio covers Networking, Wireless, Integrated Surveillance, and Cybersecurity Solutions. We strive to build strong partnerships with clients, who view us as trusted advisors ready to exceed expectations and seamlessly integrate with their operations.

About the Role:

As a Cyber Security Engineer, you will play a key role in strengthening and maintaining our clients' security posture. You'll work alongside our networking and infrastructure teams to deploy, manage, and support critical security solutions.

Key Responsibilities:

• Deploy and manage security solutions such as firewalls and endpoint protection.
• Support the design and implementation of secure network environments.
• Monitor, troubleshoot, and improve existing security systems.
• Collaborate with the team to respond to security incidents and support remediation efforts.

Requirements:

• Minimum
  3 years of hands-on experience
  in cyber security engineering.
• Strong knowledge of
  networking fundamentals
  and security concepts.
• Proven experience with deploying and managing
  firewalls and endpoint protection solutions
  .
• Problem-solving mindset and ability to work independently as well as part of a team.

What We Offer:

• An opportunity to grow your career with a forward-thinking team.
• Exposure to diverse projects across security and networking domains.
• A collaborative environment where innovation and learning are encouraged.

Position Overview

We are seeking a skilled Network Security Engineer to design, implement, and maintain secure network infrastructures. The role involves safeguarding systems, data, and networks from cyber threats, ensuring compliance with security policies, and proactively identifying vulnerabilities.

Key Responsibilities

Design, configure, and maintain firewalls, VPNs, IDS/IPS, and other security solutions.

Monitor network traffic and security alerts to detect and respond to threats.

Conduct vulnerability assessments and penetration testing to identify risks.

Implement security policies, standards, and best practices.

Manage and troubleshoot security incidents, escalating when necessary.

Maintain secure connectivity for on-premise, cloud, and hybrid environments.

Ensure compliance with industry regulations (e.g., ISO 27001, GDPR, POPIA, PCI DSS).

Collaborate with IT teams to integrate security measures into all network systems.

Keep up to date with the latest cyber threats, tools, and technologies.

Prepare reports and documentation on security posture, incidents, and improvements.

Qualifications & Skills

Bachelor's degree in Computer Science, Information Technology, or related field (or equivalent experience).

Proven experience as a Network Security Engineer, Security Analyst, or similar role.

Strong knowledge of networking (TCP/IP, routing, switching, DNS, DHCP).

Hands-on experience with firewalls (Cisco, Palo Alto, Fortinet, etc.).

Familiarity with SIEM, intrusion detection/prevention, endpoint protection, and encryption.

Understanding of cloud security (AWS, Azure, GCP) and VPN technologies.

Relevant certifications (e.g., CCNA Security, CCNP Security, CEH, CISSP, CompTIA Security+).

Excellent problem-solving and communication skills.

Ability to work independently and as part of a team.

Job Type: Full-time

Pay: From R569 364,00 per year

Work Location: In person

Bachelors degree /Diploma or equivalent experience 3+ years of IT experience 1+ years of hands-on web application penetration testing / ethical hacking experience The Purpose of Your Role Lead testing efforts on web and mobile applications and supporting systems. Replicate the actual techniques and tools used by malicious attackers in an effort to model potential external threats. Upon completion of the assessment, you will prepare reports and present the results to application owners, developers, and business unit information security teams. Analyse test results, draw conclusions from results, and develop targeted exploit examples. Consult with operations and software - development teams to ensure potential weaknesses are addressed. Contribute to the research or development of tools to assist in the vulnerability discovery process. Identify threats to improve the overall security of applications and infrastructure. Recommend solutions to help migitate risks and protect entire network i.e. Architect security solution Skills: Ability to demonstrate manual testing experience including all of OWASP Working knowledge of application security mechanisms such as authentication and authorization techniques, data validation, and the proper use of encryption Technical knowledge of, and the ability to recognize, various types of application security vulnerabilities Demonstrated experience with common penetration testing and vulnerability assessment tools such as nmap, Wireshark, Nessus, NeXpose, Kali, Metasploit, AppScan, WebInspect, Burp Suite Professional, Acunetix, Arachni, w3af, NTOSpider Knowledge of a programming or scripting language such a C, C#, Python, Objective C, Java, Javascript, SQL, Knowledge of Web Services technologies such as XML, JSON, SOAP, REST, and AJAX Knowledge of web frameworks, including XML, SOAP, J2EE, JSON and Ajax Experience with Enterprise Java or .NET web application frameworks, including Struts and Spring Proven analytical and problem solving skills, as well as the desire to assist others in solving issues Excellent interpersonal skills with a strong interest in the application security domain Excellent communication and presentation skills and a proven ability to communicate threats and facilitate progress towards long-term remediation Highly motivated with the willingness to take ownership / responsibility for their work and the ability to work alone or as part of a team. Ability to produce high level reports Preferred Skills and competencies: A+, N+, S+, CCNA Vulnerability Scanning Vulnerability Assessment Valid Certified Ethical Hacker Certificate Certified Penetration Testing Professional/ OR CISA/CISM/SISSP AND CISSP certification. NB! CV FORMAT MUST BE PDF

Company Description

Ndio, trading as Wennze, is a pan-African Internet Service Provider (ISP) and Managed Services Provider (MSP), delivering reliable internet connectivity and comprehensive technology management solutions for homes, businesses, and enterprises across Africa. Our core services include high-speed fiber internet, LTE-based wireless broadband, VoIP and cloud telephony, IT infrastructure setup and maintenance, cybersecurity, cloud services, and 24/7 technical support. We serve a diverse market ranging from households and SMEs to large enterprises, and NGOs. Ndio stands out with its Africa-wide reach, partnerships with top ISPs and mobile operators, and a digital-first support approach.

Role Description

This is a full-time on-site role for a Network Engineer based in Western Cape, South Africa. The Network Engineer will be responsible for designing, implementing, and managing network infrastructure to ensure optimal performance and security. Day-to-day tasks include network administration and engineering, troubleshooting network issues, and maintaining network security. The role also involves creating and implementing network designs and collaborating with other teams to support the company's connectivity and managed services.

Qualifications

• Network Administration and Network Engineering skills
• Experience in troubleshooting network issues and maintaining network security
• Competence in Network Design
• Excellent problem-solving and analytical skills
• Strong attention to detail and ability to work in a fast-paced environment
• Possession of relevant certifications (e.g., CCNA, CCNP) is a plus
• Bachelor's degree in Computer Science, Information Technology, or related field

We run critical business systems across multiple brands, reliable, secure and well-architected networks are the backbone. You'll design, deploy and optimise the connectivity architecture that keeps people selling, factories running and customers served. If you enjoy solving thorny issues, improving systems and sharing knowledge, this is a role with impact.

What you'll own

• Design, deploy and optimise enterprise LAN/WLAN/WAN and Data Centre switching platforms.
• Provide third-line operational support for complex incidents and ensure network stability and performance (target: 98% SLA).
• Maintain and upgrade systems (patching, firmware, lifecycle planning) according to governance schedules.
• Collaborate with Infrastructure, Security and Systems teams to drive operational excellence and share knowledge.
• Research and advise on strategic network decisions and emerging technologies that deliver business value.

What success looks like

• Stable, well-documented network platforms with measured improvements in availability and performance.
• Proactive identification and remediation of risk and degradation, measured against SLAs and monitoring alerts.
• Clear technical input into IT strategy and successful delivery of projects aligned to business needs.

Essential qualifications & Certs:

• CCNP
  : Cisco Certified Network Professional (Enterprise Infrastructure)
• CCNA
  : Cisco Certified Network Associate
• NSE4
  : FortiNet Network Security Expert

Desirable Certs:

• CCIE/CCNP
  (Data Centre, Wireless, Security)
• NSE7
  or equivalent design certifications

Your Experience & technical strengths:

• Minimum 3 years' hands-on experience
  designing and managing enterprise-scale networking, Wi-Fi, security and data-centre networks (5 years desirable for senior hires).
• Strong protocol & platform knowledge: STP, VRF, vPC, BGP, MPLS/SD-WAN, VLANs, QoS, NetFlow, SNMP and modern Wi-Fi standards a/b/g/n/ac/ax).
• Practical security experience: zone-based firewalling, IPS, IPSec VPNs, web filtering and Fortinet platforms.
• Data-centre skills: iSCSI, Fibre-Channel concepts, high-availability switching topologies.

Other practicals

• On-site presence is required and travel in South Africa and to regional sites (Namibia, Botswana, Zambia) may be required from time to time
• Manager
  : Networks Team Lead; this role does not carry direct reports but offers opportunities for cross-skilling and leadership in projects.

What we offer

• A stable, brand-diverse employer with development opportunities, certification support and clear career pathways.
• Competitive package (negotiable by experience), study leave for certifications and a practical, supportive IT team that values craftsmanship over buzzwords.

Take the Next Step with Us

At the heart of our
AVI Shared Services Divisions
is a commitment to excellence, collaboration, and continuous improvement. If reliable, well-engineered networks are your thing (and yes, we mean that in the neat-rack, zero-downtime way) this is the place for you.
Apply today to become a key player in our Infrastructure Network Team

About AVI Limited & IT Shared Services Division

At our company, we believe in collaboration and innovation to drive exceptional results. Our Shared Services departments, spanning IT, Finance, HR, Logistics, Digital, Marketing, and Field Marketing are essential to the growth of our industry-leading brands. We foster a high-performance culture where teamwork, accountability, and creative problem-solving are celebrated.

Our
AVI IT Shared Services Division
is the backbone of AVI's operational efficiency. As a proud SAP house, we utilise world-class ERP solutions to streamline operations and ensure seamless integration of technology across our businesses. The team is dedicated to maintaining robust systems and infrastructure, driving automation, improving processes, and safeguarding cybersecurity. By leveraging SAP and other cutting-edge tools, IT empowers our teams to work smarter, innovate, and deliver exceptional results.

Network Engineer

Recruiter:
Data Centrix

Job Ref:
JHB /MS

Date posted:
Wednesday, October 15, 2025

Location:
Johannesburg, South Africa

SUMMARY:
Managed Talent Solutions' client in the Aviation sector is looking for a Network Engineer to be based at their offices in the East Rand on contract. The successful candidate should have strong Cisco experience and must have a CCNP certification. Strong firewall experience using Fortinet/Sophos is essential along with a solid foundation in troubleshooting. The contract role

POSITION INFO:

• 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

The role of the Specialist Network Engineer encompasses many activities, including (but not limited to):

• Designing and managing complex network architectures, including cloud networking.
• Leading the troubleshooting of network issues to ensure high availability.
• Implementing and managing network security solutions, including firewalls and VPNs.
• Developing policies and best practices for network management.
• Collaborating with Senior Engineers to transfer research findings into scalable, production-ready solutions.
• Providing expert insights on specific tools, frameworks, or algorithms, ensuring the organization stays ahead in innovation.

• NQF 6 or a Degree in Information Communication Technology (ICT) field incorporating (but not limited to) Information Systems;
• Microsoft certification or Cisco Certification or AWS certification, and
• Minimum of 6 years' experience as a Network Engineer or Data Centre.

Plattekloof, ZA

Full-Time

Networks

Job Openings

Network Engineer - Tier 3

Applications are invited for the Network Engineer - Tier 3 position to be based in Plattekloof, Cape Town.

PURPOSE OF THE ROLE:

As a Network Engineer – Tier 3, you will work with both hardware and software to ensure the smooth operation of network systems. This includes installing and maintaining network components such as routers, switches, and data centre equipment. You will monitor and optimize core network performance and troubleshoot any issues that arise.

Key Performance Areas would include, but are not limited to:

• Escalation to Network Engineers Tier 4 as required.
• Responsible to monitor and troubleshoot all systems and/or escalate to the relevant departments as required.
• Keep network related documentation up to date.
• Assist Tier 4 Engineers during emergencies or outages.
• Implementation of approved change plans.
• Attend to technical escalation from Helpdesk Agent - Tier 2.
• Incident management & communication to relevant departments.
• Program network equipment according to standards RFC's.
• Maintain and support:
• OSPF Routing Intermediate +
• Mikrotik Routers Intermediate +
• L2 Switching Intermediate +
• Networking Intermediate +
• Router setup, installation and management.
• IP setup, planning and management.
• Firewall setup, planning and management.
• Maintanence of core functionality of VAS products and systems.
• Reporting monthly/weekly on network backhaul capacity.
• Tier 3 Engineer directly supports VIP and offnet clients.
• Assist RF & access network with site planning and development.
• Any adhoc duty as per the operational requirement of the business.
• Operate standard working hours with potential adhoc afterhours availability as per operational requirements.

The successful candidate must have the following experience/skills:

• 3 Years network experience.
• Working knowledge in BGP, OSPF, MPLS, Routing, Switching and Mikrotik Hardware.
• Experience with TCP/IP, DNS, DHCP, routers, IP routing, and switches.
• Ability to work independently and under pressure.
• Good customer service skills.
• Good communication and reporting skills.
• Good problem solving & analytic skills.
• Good time management skills.
• Good admin skills.
• Ability to function in a team.
• Juniper knowledge is advantageous.

Education Requirements:

• Minimum MTCNA Certification.
• MTCRE Certification recommended.
• N+ is advantageous.
• A+ is advantageous.
• Other diplomas in the relevant field is advantageous.

PLEASE NOTE:

• Preference will be given to Previously Disadvantaged Individual candidates in line with Herotel's Employment Equity Plan.
• Submission of your CV provides Herotel with your express consent for us to process your personal information contained therein, for purposes of processing your application. Please refer to our Privacy Policy on our website for further information on how we process personal information.
• Kindly note that should you not receive feedback from us within 4 weeks of applying, you should consider yourself unsuccessful for the role.

Plattekloof, ZA

Full-Time

Networks

Job Openings

Network Engineer - Tier 4

Applications are invited for the Network Engineer - Tier 4 position to be based in Plattekloof.

PURPOSE OF THE ROLE:

As a Network Engineer – Tier 4, you will work with both hardware and software to ensure the smooth operation of network systems. This includes installing and maintaining network components such as routers, switches, and data centre equipment. You will monitor and optimize core network performance and troubleshoot any issues that arise.

Key Performance Areas would include, but are not limited to:

• Manage the RFC deployment and compliance.
• Manage capacity planning.
• Implement and administrate any required change management
• OSPF planning, management and optimization.
• MPLS/VLANs planning, configuration and management.
• Planning and advanced, maintenance and support of:
• Router configurations and L2 Switching.
• Network device management.
• Advanced IP planning, deployment and management.
• Advanced Firewall planning, deployment and management.
• Logical design, drawing and documentation of networks (as per RFC).
• Responsible for monitoring and troubleshooting the network.
• Enforcement of SOP.
• Escalate all advanced RF or Fibre problems to relevant departments.
• Reports into the NOC Team Leader and assists with management, planning, implementation and maintenance.
• Manage projects effectively.
• Advanced fault finding.
• Compile reports as required.
• Any adhoc task as per the operational requirement of the business.

The successful candidate must have the following experience/skills:

• 5 years Network Engineer experience.
• OSPF Routing Expert.
• MPLS Intermediate/Expert.
• Mikrotik Routers Expert.
• L2 Switching Expert.
• Ability to communicate complex ideas both written and verbally.
• Must be able to compose and manage complex network.
• Networking Expert / Expert +.
• Proven experience on: UBNT & Cambium.
• BGP experience.
• Ability to work independently and in a team.
• Ability to work quickly, effectively and under pressure.
• Advanced Problem-solving skills.
• Time management skills.
• Good Communication skills (written and verbal).
• Build and maintain strong team and interdepartmental relationships.

Education Requirements:

• MTCNA Certification.
• MTCRE Certification.
• A relevant tertiary qualification would be advantageous.
• Juniper experience is advantageous

PLEASE NOTE:

• Preference will be given to Previously Disadvantaged Individual candidates in line with Herotel's Employment Equity Plan.
• Submission of your CV provides Herotel with your express consent for us to process your personal information contained therein, for purposes of processing your application. Please refer to our Privacy Policy on our website for further information on how we process personal information.
• Kindly note that should you not receive feedback from us within 4 weeks of applying, you should consider yourself unsuccessful for the role.