33 Network Administrator jobs in South Africa

5 days ago Be among the first 25 applicants

A well-established business is seeking to appoint a Senior Network Administrator

Qualification

• National Diploma Engineering/Information Technology 5+ years; OR
• B.Eng / B.Sc Hons (Comp Sci/Engineering or related field) with 3+ years
  
  

• Working as a technical resource on network infrastructure
• Experience in network operations and service support
• Experience working with helpdesk as a support technician
• Experience monitoring and responding proactively to network and IT issues
• Experience monitoring, implementing and updating network security services
• Experience working with virtual networks, namespace management
• Experience interpreting and updating network designs
  
  

• Documenting network architecture at various OSI levels.
• Operating systems experience: Windows, Linux (Debian / Ubuntu), OS X Networking in virtual environments in particular KVM via Proxmox Enterprise Virtualisation as well as containerised environments such as Docker
• Networking security best practice; Firewall configuration and management.
• Maintenance and operation life cycle of Networking Equipment.
• Identity and Access Management, Single Sign-on and Federated Identity (IdP and SP)
• ITIL frameworks and ICT operations
  
  

• Windows
• Linux (Debian / Ubuntu)
• OS X Networking
• Networking security
• ITIL frameworks

• Seniority level Mid-Senior level

• Employment type Full-time

• Job function Information Technology
• Industries Staffing and Recruiting

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Cape Town, Western Cape, South Africa 3 weeks ago

City of Cape Town, Western Cape, South Africa 2 days ago

Cape Town, Western Cape, South Africa 2 months ago

City of Cape Town, Western Cape, South Africa 2 weeks ago

City of Cape Town, Western Cape, South Africa 1 week ago

Cape Town, Western Cape, South Africa 1 week ago

Cape Town, Western Cape, South Africa 6 hours ago

Cape Town, Western Cape, South Africa 4 days ago

Cape Town, Western Cape, South Africa 1 week ago

Cape Town, Western Cape, South Africa 2 weeks ago

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Job Description

Are you an experienced Senior Network Administrator based Johannesburg, seeking a new and challenging opportunity? This may be the position you have been searching for!

Requirements :

• 5 Years Network management
• Managing IT technical support functions within a structured service management framework, like ITIL.
• A detailed knowledge of a wide range of ICT products, systems and services supporting the delivering of a Technical Quality Assurance function.
• Extensive knowledge of desktop, server and network hardware, systems and services.
• Expert practical experience of the application of ICT technologies to solve business problems.
• Desktop and Data Centre hardware and software
• Fixed and mobile networking
• Email and messaging services
• Telecommunications services, data and voice
• DMZ and firewall services
• Providing senior networking expertise to the IT Operations team.

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1 week ago Be among the first 25 applicants

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SUMMARY:

Secure and maintain the organisation’s computer systems network. Maintain a reliable, secure and efficient data communications network.

Recruiter:

Recru-it

Job Ref:

PE011202/Tabz

Date posted:

Tuesday, June 24, 2025

Location:

Johannesburg, South Africa

Salary:

1000 Annually

SUMMARY:

Secure and maintain the organisation’s computer systems network. Maintain a reliable, secure and efficient data communications network.

POSITION INFO:

Key Performance Areas

• Plan and Set Up Network Infrastructure
• Maintain High Availability Network Infrastructure
• Conduct Research on Latest Networking Practices
• Perform General Administrative Functions
• Undertake Extraneous-to-IT Activities.
  
  

• Specify network requirements and design solutions
• Implement, configure and maintain LAN
• Implement, configure and maintain WAN
• Define and allocate IP addresses
• Plan and report on network capacity within the company
• Negotiate and provide reciprocal network support and access between the company and third-party vendors
  
  

• Set up user accounts, permissions and passwords
• Install and configure network equipment to update/fix hardware/software issues
• Install and integrate new server hardware and applications
• Support and administer third-party applications (Network and Firewall applications)
• Maintain computer networks and systems including software, Virtual hosts, VPNs, routers
• and other physical hardware
• Tune network performance
• Check for and respond to network security and connectivity alerts and incidents
• Monitor network performance (availability, utilization, throughput and latency) and test for
• weaknesses
• Update virus protection software to keep data and communications protected
• Diagnose and identify root causes of network and security issues.
• Research and resolve network performance issues in a timely manner
• Provide accurate solutions to problems escalated from the 1st line support team
• Provide remote infrastructure support/troubleshooting within agreed SLAs
• Monitor and respond to new capacity threshold alerts
  
  

• Identify and review appropriate software updates, patches and firmware releases
• Research and make network recommendations on server system operations
• Research and review networking best practices and applications
  
  

• Define network policies and procedures
• Communicate networking issues to other IT Teams, Supervisors and management
• Resolve software and hardware configuration issues for users
• Track system’s end of life and specify replacements when needed.
• Document existing systems and formulate comprehensive plans for the implementation of new systems
• Establish and maintain a good working relationship with customers
  
  

• Undertake Generator operational checks per prescribed checklist(s)
• Check that OEM generator suppliers’ maintenance regimes are completed per SLA
• Undertake UPS operational/functionality checks per prescribed checklist(s)
• Check that OEM UPS suppliers’ maintenance regimes are completed per SLA
• Process “first point of contact” calls for generator and systems issues and/or failures
• Retrieve camera footage for managers’/supervisors’ review
• Install and maintain camera hardware and cabling
• Conduct solar system operational checks
• Perform basic solar system maintenance (replace fuses, etc.)
• Trouble shoot and resolve office electrical issues
  
  

• Matric
• A+ Certificate
• N+ Certificate
• Linux LPIC-1
• BSc degree in Computer Science or related field,
• An equivalent certification at NQF Level 7 (e.g. Cisco Certified Network Associate (CCNA), Aruba Certified Switching Associate (ACSA), FortiGate)
• MCSE
• MCIPT
  
  

• Proven experience in a network administrator role
• Verifiable experience in the design and implementation of routing and switching large scale, multi-vendor networks (Aruba, Cisco).
• Direct experience in Network Security (e.g. Sophos, FortiGate)
• Applied experience with Aruba routing and switches
• Practical experience with wireless networks
• Relevant experience with firewalls, Internet VPNs remote implementation, troubleshooting, and problem resolution
• Hands on experience in Windows server 2019-2016, hyper v, Designing and Implementing a Server
• Practicable experience with Infrastructure, Linux Server, Microsoft Systems
• Working experience with VMware.
  
  

• Solid familiarity with backup and recovery software and methodologies
• Intense knowledge of internet protocols, services and standards.
• Solid understanding of network automation, telemetry, and SDN (Software Defined Networking)
• Knowledgeable in network security standards, best practices, and implementation of them to
• operating procedures and configurations.
• Strong understanding of physical cabling
• Practicable knowledge of best practices around management, control, and monitoring of server infrastructure
• Exceptional written and verbal communication skills
• Excellent problem-solving skills
• Exceptional organising skills
• Ability to diagnose and resolve product, hardware and performance issues independently
• Ability to set up and configure server hardware
• Strong scripting skills
• Robust ability to configure and maintain networking stacks
  
  

• Attention to detail/accuracy
• Able to work in a team and independently
• Deadline conscious
• Calm under pressure
• Responsible and accountable
• Self-motivated
• Flexible
• Honest, Hardworking and Humble
  
  
  
  

• Seniority level Mid-Senior level

• Employment type Full-time

• Job function Information Technology
• Industries Advertising Services

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Get notified about new Network Administrator jobs in Johannesburg, Gauteng, South Africa .

Johannesburg, Gauteng, South Africa 1 week ago

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Objective :

The successful candidate will provide a reliable, secure, and efficient data communications network.

Responsibilities :

• Planning and setting up network infrastructure.
• Maintaining high availability network infrastructure.
• Conducting research on latest networking practices.
• Executing general administrative functions.
• Undertaking extraneous-to-IT activities.

Key Tasks Include :

• Implementing and maintaining LAN and WAN.
• Configuring IP addresses and network capacity.
• Installing and integrating new server hardware and applications.
• Researching and resolving network performance issues.
• Defining network policies and procedures.
• Resolving software and hardware configuration issues.

Requirements :

• Bachelor's degree.
• Verifiable experience in the design and implementation of routing and switching large-scale, multi-vendor networks (Aruba, Cisco).
• Direct experience in Network Security (e.g., Sophos, Fortigate).
• Applied experience with Aruba routing and switches.
• Practical experience with wireless networks.

Salary : R30 000 - R35 000

Managed Talent Solutions' client in the automotive industry is looking for a Network Administrator for a 3 month fixed term contract.

• Relevant certifications such as CompTIA Network+ and Cisco Certified Network Associate (CCNA) is required.

• Proficiency in networking protocols and technologies (TCP/IP, DNS, DHCP, VPN, VLANs, etc.).
• Knowledge of network hardware, including routers, switches, firewalls, and other networking devices.
• Experience with network monitoring and troubleshooting tools.
• Knowledge of SDWAN technology and connectivity.

• Understanding of network security principles and best practices.
• Familiarity with firewalls, intrusion detection/prevention systems.
• Experience on Palo Alto firewall is an advantage.

• Proficiency in various operating systems, especially Windows and Linux (for Linux would be an advantage, not a preference).
• Experience with server operating systems and services (e.g., Active Directory (Basic), DNS, DHCP).

• Ability to design and implement network infrastructure based on organizational needs.
• Capacity planning and optimization to ensure network performance.

• Effective communication skills to interact with colleagues, management, and end-users.
• Ability to document network configurations, procedures, and troubleshooting steps.

• Strong analytical and problem-solving skills to identify and resolve network issues promptly.
• Ability to troubleshoot hardware, software, and network problems.

• Efficient time management to handle multiple tasks and projects simultaneously.
• Quick response to network issues and outages.
• Ability to work collaboratively with other IT professionals, such as system administrators, security analysts, helpdesk support and 3rd party Vendors.
• The IT landscape is dynamic, and a network administrator should be adaptable to changes in technology and business requirements.

• Providing support to end-users and ensuring a positive customer experience.

• Maintain and manage networking switches and routers in coordination with the networking and security teams
• Develop and maintain comprehensive documentation of system architecture and networking equipment inventories
• Manage maintenance, spares provisioning, capacity planning, and replacement of networking hardware
• Oversee the management of physical and virtual servers running Linux and Microsoft Windows Server environments
• Ensure network availability and manage server room networking infrastructure.
• Respond promptly to break-fix issues related to network equipment in collaboration with the networking team
• Support ongoing network improvements and assist with forecasting future network requirements

• National Diploma in Engineering or Information Technology with 5+ years relevant experience; OR
• B.Eng or B.Sc Hons (Computer Science, Engineering, or related field) with 3+ years relevant experience

• Proven experience as a technical resource in network infrastructure management and support
• Hands-on experience with network operations, service support, and helpdesk collaboration
• Experience proactively monitoring and resolving network and IT issues
• Knowledge and practice of network security services implementation and maintenance
• Experience with virtual networks and namespace management
• Ability to interpret and update network design documentation

• Documenting network architecture across OSI layers
• Operating systems: Windows, Linux (Debian/Ubuntu), and OS X
• Networking in virtualised environments, especially KVM via Proxmox, and containerised environments like Docker
• Networking security best practices, including firewall configuration and management
• Lifecycle maintenance and operation of networking equipment
• Identity and Access Management, Single Sign-On, and Federated Identity protocols (IdP and SP)
• Familiarity with ITIL frameworks and ICT operations
• Strong understanding of TCP/IP, routing, DNS, DHCP, OSI stack, VPNs
• Configuration experience with networking switches and routers such as Cisco, HPE, Mellanox, and Arista
• Use of networking monitoring tools and support packages
• Solid grasp of Linux operating systems, open-source software, and networking tools
• Strategic thinking and influencing skills in IT networking and security contexts

• Maintain and manage, in conjunction with networking team, networking switches and routers conforming to requirements from Networking Security Team
• Develop, manage and maintain documentation of the system architecture.
• Develop and maintain database of existing networking equipment ²location, serial number, model, configuration management.
• Manage, in conjunction with networking team, maintenance of networking kit, spares provisioning, stores replacement, capacity planning, optics, line cards etc.
• Maintain and manage, in conjunction with networking team, servers both physical and virtual (Proxmox based on KVM) running Linux and Microsoft Windows Server Edition.
• Maintain and manage, in conjunction with networking team, server room level networking and availability.
• Respond, in conjunction with the networking team, to break-fix issues on networking equipment.

• National Diploma Engineering/Information Technology 5+ years; OR
• Eng / B.Sc. Hons (Comp Sci/Engineering or related field) with 3+ years

• Working as a technical resource on network infrastructure
• Experience in network operations and service support
• Experience working with helpdesk as a support technician
• Experience monitoring and responding proactively to network and IT issues
• Experience monitoring, implementing and updating network security services
• Experience working with virtual networks, namespace management
• Experience interpreting and updating network designs.

• Documenting network architecture at various OSI levels.
• Operating systems experience: Windows, Linux (Debian/ Ubuntu), OS X
• Networking in virtual environments in particular KVM via Proxmox Enterprise Virtualisation as well as containerised environments such as Docker
• Networking security best practice; Firewall configuration and management.
• Maintenance and operation life cycle of Networking Equipment.
• Identity and Access Management, Single Sign-on and Federated Identity (IdP and SP)
• ITIL frameworks and ICT operations