Senior Network Infrastructure Engineer - Pretoria

Placements24; Pretoria; Hybrid; ZAR 1,000,000 - 1,600,000; Full time

Benefits offered by this job

Competitive salary package

Medical aid

Pension fund

Professional development

Hybrid work model

Job summary

Placements24 in Pretoria is seeking a Senior Network Infrastructure Engineer to design, implement, and optimize the core network for a leading telecom provider. This role requires deep expertise in routing, switching, firewalls, and large-scale networks, with a focus on reliability and security.

You will lead network projects, mentor junior engineers, participate in on-call rotations, and collaborate with cross-functional teams to define requirements.

Qualifications

• Minimum 8 years of network engineering and infrastructure management experience.
• Deep knowledge of TCP/IP, BGP, OSPF, MPLS, VLANs.
• Hands-on with enterprise firewalls (Cisco ASA, Palo Alto) and VPNs.
• Experience with SolarWinds or Nagios for monitoring.
• Certifications such as CCNP or CCIE are desirable.

Responsibilities

• Design, implement, and manage complex network infrastructure.
• Configure and maintain routers, switches, firewalls, and load balancers.
• Monitor performance and troubleshoot to minimize downtime.
• Develop and implement network security measures and access policies.
• Plan and execute network upgrades with minimal disruption.
• Collaborate with cross-functional teams to define requirements.

Skills

Network engineering

Routing & switching

Network security

Analytical thinking

Communication skills

Project management

Independent work

Education

Bachelor's degree in CS/IT

Tools

Cisco ASA

Palo Alto

SolarWinds

Nagios

Job description

About the Role

Our client, a major telecommunications provider, is seeking a highly experienced Senior Network Infrastructure Engineer to join their team in **Pretoria**. This role is responsible for the design, implementation, maintenance, and optimization of the company's core network infrastructure, ensuring high availability, performance, and security. The ideal candidate will have a deep understanding of routing, switching, firewalls, and network protocols, along with extensive experience in large-scale network environments. You will play a crucial role in shaping the future of our client's network, supporting critical business operations and driving innovation in network technology within the **Pretoria** region and beyond.

Key Responsibilities

• Design, implement, and manage complex network infrastructure, including LAN, WAN, and data center networks.
• Configure and maintain network devices such as routers, switches, firewalls, and load balancers.
• Monitor network performance and troubleshoot network issues, ensuring minimal downtime and optimal throughput.
• Develop and implement network security measures, including intrusion detection/prevention systems and access control policies.
• Plan and execute network upgrades and expansions, minimizing disruption to services.
• Collaborate with cross-functional teams to define network requirements and provide technical solutions.
• Document network architecture, configurations, and operational procedures.
• Stay abreast of emerging network technologies and industry best practices.
• Provide technical leadership and mentorship to junior network engineers.
• Participate in on‑call rotation for network incident response.

Requirements

• Bachelor's degree in Computer Science, Information Technology, or a related field, or equivalent practical experience.
• Minimum of 8 years of experience in network engineering and infrastructure management.
• In-depth knowledge of TCP/IP, BGP, OSPF, MPLS, VLANs, and other routing/switching protocols.
• Hands‑on experience with enterprise‑level firewalls (e.g., Cisco ASA, Palo Alto) and VPN technologies.
• Experience with network monitoring tools (e.g., SolarWinds, Nagios).
• Strong understanding of network security principles and best practices.
• Relevant certifications such as CCNP, CCIE, or equivalent are highly desirable.
• Excellent analytical and problem‑solving skills.
• Ability to work independently and manage multiple projects simultaneously.
• Strong communication and interpersonal skills, with the ability to explain technical concepts to non‑technical stakeholders.
• Experience in a telecommunications or ISP environment is a plus, particularly in the **Pretoria** area.

Benefits

• Our client offers a highly competitive salary package and a comprehensive benefits program including medical aid, life insurance, and a generous pension fund.
• Opportunities for professional development, including advanced certifications and training, are readily available.
• You will have the chance to work with cutting‑edge network technologies and contribute to significant infrastructure projects.
• The role is based in **Pretoria** with a hybrid work model, offering flexibility.
• Join a collaborative and innovative team environment where your expertise is valued and your career growth is supported.