Network Engineer - ISP Core&Access Networks, Johannesburg
Network Engineer - ISP Core&Access Networks, Johannesburg
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Johannesburg, South Africa -
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Description
Network Engineer - ISP Core&Access Networks Johannesburg, South Africa | Posted on 03/03/2026
Responsible for the design, implementation, maintenance, and optimisation of the ISP’s core, aggregation, and access networks. The role ensures high availability, performance, scalability, and security across all network services within a service provider environment.
Key Responsibilities
Maintain and support ISP core and access network infrastructure
Configure and manage Layer 2 switching and VLAN environments
Implement and support dynamic routing protocols (BGP, OSPF)
Manage peering, transit, and upstream routing policies
Design and maintain IP addressing plans and IP allocations
Monitor bandwidth utilisation and plan capacity upgrades
Troubleshoot complex network incidents
Support client onboarding, migrations, and solution design
Maintain accurate documentation and follow change management processes
Participate in after-hours standby and emergency support
Requirements Qualifications
Grade 12
Certifications
Security+ (advantageous)
Valid Driver’s License
Experience
5+ years in an ISP or service provider environment
Strong hands‑on experience with switching, routing, IP networking, and bandwidth management
Advanced knowledge of Layer 2&Layer 3 networking
Strong troubleshooting and analytical skills
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Responsible for the design, implementation, maintenance, and optimisation of the ISP’s core, aggregation, and access networks. The role ensures high availability, performance, scalability, and security across all network services within a service provider environment.
Key Responsibilities
Maintain and support ISP core and access network infrastructure
Configure and manage Layer 2 switching and VLAN environments
Implement and support dynamic routing protocols (BGP, OSPF)
Manage peering, transit, and upstream routing policies
Design and maintain IP addressing plans and IP allocations
Monitor bandwidth utilisation and plan capacity upgrades
Troubleshoot complex network incidents
Support client onboarding, migrations, and solution design
Maintain accurate documentation and follow change management processes
Participate in after-hours standby and emergency support
Requirements Qualifications
Grade 12
Certifications
Security+ (advantageous)
Valid Driver’s License
Experience
5+ years in an ISP or service provider environment
Strong hands‑on experience with switching, routing, IP networking, and bandwidth management
Advanced knowledge of Layer 2&Layer 3 networking
Strong troubleshooting and analytical skills
#J-18808-Ljbffr
Highlights
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Company nameSabenza IT&Recruitment -
Job positionNetwork Engineer - ISP Core&Access Networks
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