540 Network Admin jobs in South Africa

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

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.

Division

GBS

Business Unit

IT

Minimum experience

Mid-Senior

Company primary industry

Information Technology and Services

Job functional area

Information Technology

At GBS Holdings, we're committed to building secure, scalable, and high-performance IT infrastructure that supports our diverse business operations. We're looking for a skilled 
Network and Security Engineer
 to join our dynamic team. In this role, you'll be responsible for designing, implementing, and managing robust network systems while ensuring the highest standards of security and reliability. If you're passionate about technology and thrive in a collaborative environment, we want to hear from you.

Key Responsibilities:

• Design, implement, and maintain secure network architectures (LAN, WAN, VPN)
• Configure and manage routing, switching, and wireless infrastructure
• Manage and secure FortiGate firewalls and related network security systems
• Provide 3rd line technical support for complex networking and security issues
• Ensure high availability (99.8% uptime) and proactive system maintenance
• Monitor network performance and conduct vulnerability assessments
• Maintain accurate documentation including network diagrams and configuration standards
• Support and maintain Windows Server 2016/2019 and Exchange hybrid environments
• Administer Office 365 and Microsoft Azure environments
• Implement and manage Veeam Backup & Replication for disaster recovery
• Support external SFTP environments and domain/DNS management
• Support endpoint security via Kaspersky Security Centre

Minimum Qualifications and Experience:

• Matric (Required)
• Diploma or Bachelor's Degree in Information Technology or related field
• CCNA certification (Required)
• FortiGate certification (Advantageous)
• Must have a minimum of 5+ years as a network and security engineer
• Strong experience with routing, switching, FortiGate firewalls, and security best practices
• Background in cybersecurity and infrastructure management
• Good understanding of Microsoft technologies and cloud platforms (Azure, O365)

Behavioural & Competency Skills:

• Excellent communication and interpersonal skills
• Strong analytical and problem-solving abilities
• Able to work independently and collaboratively
• Task-oriented with a focus on timely, high-quality delivery
• Process-driven with attention to detail

Click the link below to apply:

Network & Security Engineer at GBS

The purpose of this position is to plan, implement, monitor, and maintain robust network security measures that protect the integrity, confidentiality, and availability of CPUT’s information systems and infrastructure, while ensuring compliance with institutional policies and regulatory standards.

Job Knowledge, Skills and Experience

• A BTech in Information Technology or equivalent qualification
• At least 3-5 years’ experience in network security (firewalls, DNS layer security, MFA) Deployment, Configuration and Support / in CCNA / HCIA (International certified)

Key Performance Areas / Principal Accountabilities

• Network Security Architecture and Design
• Cybersecurity Monitoring and Incident Response
• Firewall and Perimeter Defense Management
• Vulnerability Management and Threat Mitigation
• Policy, Compliance, and Audit Support
• Security Awareness and Capacity Building
• Project Involvement and Strategic Input

Faculty

Support / Admin Department

Department

Cape Peninsula University of Technology -> Information and Communication Technology Services (ICTS) -> Networking

Campus/ Location

District Six Campus - Cape Town, WC ZA (Primary)

Job Type

Permanent

Occupational Function

Support / Admin

Number of Positions

1

Annual Salary Package (incl. Medical Aid rate based on principal member only)

To be confirmed

Advert Closing Date

28/9/2025

Job Purpose

The purpose of this position is to plan, implement, monitor, and maintain robust network security measures that protect the integrity, confidentiality, and availability of CPUT's information systems and infrastructure, while ensuring compliance with institutional policies and regulatory standards.

Job Knowledge, Skills and Experience

• A BTech in Information Technology or equivalent qualification.
• At least 3-5 years' experience in network security (firewalls, DNS layer security, MFA) Deployment, Configuration and Support / in CCNA / HCIA (International certified).

Key Performance Areas / Principal Accountabilities

• Network Security Architecture and Design
• Cybersecurity Monitoring and Incident Response
• Firewall and Perimeter Defense Management
• Vulnerability Management and Threat Mitigation
• Policy, Compliance, and Audit Support
• Security Awareness and Capacity Building
• Project Involvement and Strategic Input

Competencies

• Team leadership skills
• People Management skills
• Interpersonal skills
• Project Management skills
• Excellent problem-solving skills
• Analytical skills
• Organizational skills
• Communication skills
• Report writing skills
• Knowledge of emerging networking technologies and industry trends.

General Information

Closing date: 28 September 2025

For enquiries and assistance with your online application, please email: please contact Mr Odwa Siza, (Human Capital Department) email:

NB: PLEASE NOTE THAT THIS SYSTEM DOES NOT ALLOW APPLICANTS TO UPLOAD CVs. IT IS THUS IMPORTANT THAT APPLICANTS COMPLETE ALL SECTIONS COMPREHENSIVELY AS FAILURE TO DO SO MIGHT DISADVANTAGE YOU. PLEASE UPDATE YOUR APPLICATION ON THE SYSTEM WITH THE LATEST INFORMATION AS THIS WILL BE THE ONLY CRITERIA USED FOR EVALUATION OF YOUR APPLICATION BY OUR PANEL.

The Cape Peninsula University of Technology is committed to Employment Equity and aims to attract and retain talented individuals to achieve our equity objectives and therefore, people from the designated groups, including those with disabilities are encouraged to apply. Preference will be given to applicants whose appointment contributes towards the achievement of demographic representation. We reserve the right not to make an appointment.

Network Security Analyst (Remote South Africa) Overview

Were looking for a highly skilled Network Security Analyst to join our forward-thinking, security-driven team. In this role, you'll be the guardian of our digital infrastructure ensuring that firewalls, network rules, and security configurations are robust, compliant, and ready to face emerging threats.

• Manage and resolve firewall-related tickets efficiently.
• Add, modify, and optimize firewall rules in line with security best practices.
• Configure Palo Alto firewalls confidently and effectively.
• Implement secure changes without disrupting business operations.
• Monitor and analyze security systems to proactively prevent breaches.

• Palo Alto Certification (essential).
• Proven experience managing and configuring Palo Alto firewalls.
• Strong understanding of firewall rule creation and security change management.
• Familiarity with common security protocols and network monitoring tools.
• Excellent troubleshooting and analytical skills.

• Experience working with Checkpoint firewalls.
• Exposure to other enterprise security solutions.

• 100% remote work operate from anywhere in South Africa.
• Competitive salary aligned with experience.
• Join a dynamic, security-focused team with cutting-edge tools and projects.

Network Security Analyst (Remote South Africa) Overview

Were looking for a highly skilled Network Security Analyst to join our forward-thinking, security-driven team. In this role, you'll be the guardian of our digital infrastructure ensuring that firewalls, network rules, and security configurations are robust, compliant, and ready to face emerging threats.

• Manage and resolve firewall-related tickets efficiently.
• Add, modify, and optimize firewall rules in line with security best practices.
• Configure Palo Alto firewalls confidently and effectively.
• Implement secure changes without disrupting business operations.
• Monitor and analyze security systems to proactively prevent breaches.

• Palo Alto Certification (essential).
• Proven experience managing and configuring Palo Alto firewalls.
• Strong understanding of firewall rule creation and security change management.
• Familiarity with common security protocols and network monitoring tools.
• Excellent troubleshooting and analytical skills.

• Experience working with Checkpoint firewalls.
• Exposure to other enterprise security solutions.

• 100% remote work operate from anywhere in South Africa.
• Competitive salary aligned with experience.
• Join a dynamic, security-focused team with cutting-edge tools and projects.