172 Network Administration jobs in South Africa

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

Network : Security Specialist5 days ago Be among the first 25 applicantsfibertime 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 ).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 skillsWHY 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 levelSeniority levelMid-Senior levelEmployment typeEmployment typeFull-timeJob functionJob functionInformation TechnologyIndustriesTechnology, Information and InternetReferrals increase your chances of interviewing at fibertime by 2xSign in to set job alerts for "Network Specialist" roles.Cape Town, Western Cape, South Africa 1 week agoCape Town, Western Cape, South Africa 5 days agoCity of Cape Town, Western Cape, South Africa 5 days agoCape Town, Western Cape, South Africa 1 month agoManager : Network Services and Infrastructure (Post Level 6)Cape Town, Western Cape, South Africa 3 weeks agoCape Town, Western Cape, South Africa 1 week agoBellville, Western Cape, South Africa 7 hours agoCape Town, Western Cape, South Africa 4 days agoSenior Network & Security Installs and Support EngineerCape Town, Western Cape, South Africa 2 weeks agoBellville, Western Cape, South Africa 1 hour agoCape Town, Western Cape, South Africa 3 weeks agoDigital Public Relations Specialist (Cape Town)Cape Town, Western Cape, South Africa 11 hours agoCape Town, Western Cape, South Africa 6 months agoCape Town, Western Cape, South Africa 1 month agoCape Town, Western Cape, South Africa 3 months agoCape Town, Western Cape, South Africa 1 month agoCity of Cape Town, Western Cape, South Africa 4 weeks agoCape Town, Western Cape, South Africa 1 week agoCape Town, Western Cape, South Africa 3 months agoWe're unlocking community knowledge in a new way.

Experts add insights directly into each article, started with the help of AI.

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Security Specialist • Stellenbosch, Western Cape

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

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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

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Industry: Manufacturing/Industrial
Location: Bryanston
Environment: Office-based, occasional travel
Non-negotiables: CCNA (or similar), ITIL Foundation, 2+ years of network support experience, and vendor management

Play a pivotal role in securing and optimizing enterprise network infrastructure, collaborate with multiple departments and vendors, and gain visibility across cross-site ICT operations.

📌 Qualifications & Skills:

• Minimum Required:
  
  • Matric
  • Cisco Certified Network Associate (CCNA) or equivalent
  • ITIL Foundations Certification
  • Proven experience in IT support and network services management
• Preferred:
  
  • Diploma in Information Technology
  • Exposure to industrial/manufacturing networks

• 2+ years in network support roles
• Hands-on experience managing network service providers
• Experience with:
  
  • Change and asset/configuration management
  • Lifecycle planning (hardware & software)
  • Network and security diagnostics, troubleshooting, and monitoring
  • IT project delivery (network/security stream)
  • Vendor/contract management
  • Technical documentation
  • Security software and hardware definition
  • Budget and procurement input
  • First-line desktop/user support (ad hoc)
• Ability to travel between company sites when required

• Network & Security Operations:
  
  • Maintain, monitor, and improve network and security environments
  • Ensure alignment with IT best practices and standards
  • Perform diagnostics and resolve issues
• Vendor & Lifecycle Management:
  
  • Oversee vendor relationships (contracts, performance, and costs)
  • Manage network assets, configurations, and lifecycle upgrades
• Project & Change Leadership:
  
  • Act as technical lead for network/security in IT projects
  • Ensure efficient resource planning and change management
• Documentation & Reporting:
  
  • Maintain up-to-date network and security procedure documentation
  • Compile reports on IT performance, issues, and changes
• Security & Compliance:
  
  • Help define network security standards and tools
  • Support compliance with corporate and legal IT security policies
• Support & Admin Services:
  
  • Deliver ad hoc desktop support and IT admin services as needed
  • Ensure fast issue resolution with minimal disruption