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Senior Network Security Engineer
Data CentrixJohannesburg, South Africa28 days ago
Job descriptionCertifications & 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. CCNP Enterprise PaloAlto PCNSE, PCNSA, PCCSA certification CompTIA Security+ or equivalent security certifications Cloud certifications (AWS, Azure, or Google Cloud 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 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 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
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 :
Advanced Certifications
Technical Experience
Industry Experience
Working Conditions
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Network Engineer • Johannesburg, South Africa
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