Senior Network Security Engineer

Datacentrix

  • Johannesburg, Gauteng
  • Permanent
  • Full-time
  • 13 hours ago
Key Responsibilities
  • Projects & Implementation (35%) Lead network infrastructure projects, coordinate timelines, and evaluate new technologies
  • Reporting & Documentation (10%) Generate network performance reports, maintain technical documentation, and create standard operating procedures
  • Critical Issue Management (15%) Respond to priority incidents, manage escalations, conduct root cause analysis, and participate in incident response
  • Stakeholder Management (10%) Maintain vendor relationships, collaborate with business units, and negotiate technical specification
  • Technical Support & Knowledge Transfer (20%) Implement and configure security protocols, provide technical support, troubleshoot issues, mentor team members, and stay current with updates
  • Maintenance (10%) Perform daily network health checks, execute routine maintenance, monitor performance, and maintain documentation
Required Qualifications:
  • Certifications & Experience: CCNA certification, entry-level PaloAlto qualification, and 4+ years of network and firewall management
  • Technical Skills: LAN understanding, WiFi and switching management, PaloAlto firewall configuration, multi-vendor network troubleshooting, and core networking protocols.
  • Preferred Skills: VeloCloud SD-WAN management, Cisco certification, server technology expertise, cloud platforms knowledge, and network monitoring tools.
  • Professional Skills: Adaptability, analytical and problem-solving capabilities, excellent communication, and strong documentation skills.
Advanced Certifications
  • CCNP Enterprise
  • PaloAlto PCNSE, PCNSA, PCCSA certification
  • CompTIA Security+ or equivalent security certifications
  • Cloud certifications (AWS, Azure, or Google Cloud
Technical Experience
  • Enterprise network design and implementation
  • Multi-vendor environment management
  • Security incident response and forensics
  • Network automation and scripting (Python, PowerShell)
  • SIEM and security monitoring tools
Industry Experience
  • Previous experience in vendor management or procurement
  • Background in cybersecurity or information security
  • Experience with enterprise monitoring and management tools
  • Project management experience with network implementations
Working Conditions
  • Position requires ability to work independently and make autonomous decisions
  • Occasional after-hours support during incidents or maintenance windows required
  • Regular interaction with external vendors and internal stakeholders
  • Some travel may be required for vendor meetings, training, or site visits
  • On-call rotation participation for critical infrastructure support

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