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Senior Network Engineer

Senior Network Engineer

Core GroupZA
6 days ago
Job description

Job title : Senior Network Engineer

Job Location : Gauteng,

Deadline : November 21, 2025

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About Core Group

  • Core Group represents some of the world’s most iconic technology brands across Sub-Saharan Africa. We’re driven by innovation, operational excellence, and a commitment to delivering world-class technology experiences. Our IT Infrastructure team plays a key role in ensuring our systems and networks are secure, reliable, and future-ready.

    • Role Overview

  • The  Senior Network Engineer  is responsible for designing, implementing, and managing Core Group’s network infrastructure. This role ensures optimal performance, security, and scalability across all sites while maintaining compliance with best practices.
  • You’ll lead complex network projects, collaborate across departments, and provide technical leadership in Cisco, Fortinet, and Microsoft environments.

    • Key Responsibilities

  • Design and deploy secure, scalable, and reliable network solutions.
  • Implement and manage firewalls, intrusion prevention, and access control systems (Fortinet).
  • Oversee daily network operations, troubleshooting, and performance optimisation.
  • Manage network infrastructure across multiple sites and ensure consistent standards.
  • Lead and deliver network projects on time and within budget.
  • Maintain accurate network documentation and performance reports.
  • Mentor junior engineers and promote knowledge sharing.
  • Ensure compliance with regulatory and internal standards.
  • Support internal teams and communicate solutions clearly to non-technical users.

    • Qualifications & Experience

  • Relevant tertiary qualification in IT or related field.
  • 5–7 years’ experience in enterprise network engineering.
  • Hands-on experience with  Cisco ,  Fortinet , and  Microsoft Azure  technologies.
  • Proven success in full lifecycle network implementations and integrations.
  • Excellent problem-solving and communication skills.

    • Certifications :

  • Cisco :  Minimum CCNA (CCNP / CCIE advantageous)
  • Fortinet :  NSE 4 or higher
  • Microsoft :  Azure Network Engineer Associate (AZ-700)
  • Advantage : IP Telephony (Euphoria, Microsoft Teams)

    • ​​​​​​​ Key Competencies

  • Strong technical and analytical skills.
  • Excellent organisational and project management ability.
  • Collaborative and able to lead teams effectively.
  • Innovative mindset with attention to detail and quality.
  • Calm, professional, and effective under pressure.
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