126 Network Maintenance jobs in South Africa

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

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

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

5 days ago Be among the first 25 applicants

fibertime is revolutionising internet access by providing unlimited, pay-as-you-go fiber connectivity to underserved communities in South Africa. Our mission is to bridge the digital divide by offering affordable, high-speed internet, enabling opportunities for education, employment, and personal growth. We are rapidly expanding our network across multiple cities and townships, aiming to make reliable internet accessible to all.

WHO WE ARE LOOKING FOR:

A Network guru who focuses on safeguarding fibertime’s networks, servers, and customer infrastructure by implementing and maintaining best-in-class security systems and protocols.

WHAT YOU’LL DO (AND LOVE DOING):

• Monitor and protect fibertime’s networks, systems, and data from internal and external threats.
• Design, implement, and manage firewalls, IDS/IPS, VPNs, and other security technologies.
• Lead incident detection and response efforts, including root cause analysis and remediation.
• Conduct regular risk assessments and security audits across infrastructure and platforms.
• Define, document, and enforce information security policies and procedures.
• Work with engineering and IT teams to embed security into design, deployment, and operations.
• Ensure compliance with industry standards and regulations (e.g., POPIA, ISO 27001).
• Raise internal awareness around cyber hygiene and provide training where needed.

WHAT YOU BRING TO THE TABLE:

• 5+ years of experience in network and infrastructure security.
• Strong hands-on experience with enterprise firewalls, IDS/IPS, VPNs, and SIEM tools.
• Deep understanding of TCP/IP, DNS, VPNs, and subnet-level security.
• Proven track record of incident response and security operations.
• Experience in securing cloud environments (e.g., AWS, Azure) is a plus.
• Relevant certifications (e.g., CISSP, CEH, CompTIA Security+, GIAC) are preferred.
• Strong analytical, communication, and documentation skills

WHY JOIN US?

• Make an impact : Help protect the critical infrastructure that connects underserved communities.
• Work with purpose : We’re on a mission to close the digital divide in South Africa and beyond.
• Innovate daily : Collaborate with a team of engineers and creatives in a fast-moving environment.
• Grow your skills : Be part of a company that invests in your personal and professional development.
• Be valued : Join a culture that values transparency, trust, and teamwork.
• Enjoy flexibility : Embrace our hybrid work model with Stellenbosch as your collaborative home base.

• Seniority level Mid-Senior level

• Employment type Full-time

• Job function Information Technology
• Industries Technology, Information and Internet

Referrals increase your chances of interviewing at fibertime by 2x

Cape Town, Western Cape, South Africa 1 week ago

Cape Town, Western Cape, South Africa 5 days ago

City of Cape Town, Western Cape, South Africa 5 days ago

Cape Town, Western Cape, South Africa 1 month ago

Cape Town, Western Cape, South Africa 3 weeks ago

Cape Town, Western Cape, South Africa 1 week ago

Bellville, Western Cape, South Africa 7 hours ago

Cape Town, Western Cape, South Africa 4 days ago

Cape Town, Western Cape, South Africa 2 weeks ago

Bellville, Western Cape, South Africa 1 hour ago

Cape Town, Western Cape, South Africa 3 weeks ago

Cape Town, Western Cape, South Africa 11 hours ago

Cape Town, Western Cape, South Africa 6 months ago

Cape Town, Western Cape, South Africa 1 month ago

Cape Town, Western Cape, South Africa 3 months ago

Cape Town, Western Cape, South Africa 1 month ago

City of Cape Town, Western Cape, South Africa 4 weeks ago

Cape Town, Western Cape, South Africa 1 week ago

Cape Town, Western Cape, South Africa 3 months ago

We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.

Responsibilities

• Provides day-to-day support for firewall engineering and operation tasks and level 1 & 2 on-call technical support for the Firewall Engineering and Operations team, including assisting peers with issues and escalation.
• Supports the implementation and ongoing operations of network access control devices to include firewalls and SSL VPN devices.
• Work collaboratively across a variety of business units to implement new technology, support existing, and at times do so after normal business hours.
• Build and configure solutions in the development, test, and production environment, including documenting the security infrastructure and design
• Manage problems, maintain vendor relationships, and assist operations with vendor escalation and issue resolution.
• Facilitate device refresh of network security devices with a focus on capacity, manageability, and security of new and existing security infrastructure.
• Participate in team on-call coverage rotation
• Design, deploy and support enterprise-class Fortinet and SSL VPN devices.
• Design, deploy and support Firewall
• Complex troubleshooting to include network protocol and log analysis, raw data captures, and the correlation of disparate events spanning multiple devices and platforms.

Candidates with required certification will be considered. For more information please contact : Lister Malatjie

Minimum Requirements:

Are you a highly motivated security specialist with hands-on Fortinet experience looking for your next big challenge?

Our client is building a dynamic, energetic team and needs YOU to help secure cutting-edge networks!

1. Configure & manage top security tech (Fortinet-focused) - Project Management experience is a must!
2. Respond to security alerts & analyze reports
3. Keep systems updated & patched

1. 3-5+ years in network security engineering
2. 2+ years hands-on experience with Fortinet products (mandatory)
3. Relevant IT security qualifications (Fortinet certs preferred)
4. Strong communication, problem-solving & attention to detail

Salary: Negotiable based on experience

Only applicants with the required experience will be considered. Ready to level up your career?