Senior Network Security Architect

4 weeks ago


Cape Town, Western Cape, South Africa DLK Group (PTY) Ltd Full time
Job Summary

We are seeking a highly skilled Principal Network Security Engineer to lead and manage network security solutions in a fast-paced telecommunications environment. The ideal candidate will have extensive experience in network evaluation, planning, provisioning, and the implementation of robust security protocols to safeguard organizational data.

Key Responsibilities
  • Perform network evaluation, planning, provisioning, and assurance for MAN, WAN, LAN, and Network Security systems.
  • Lead the design and implementation of IP subnet masks, dynamic routing systems (especially OSPF), and network security measures.
  • Oversee the configuration and installation of security protocols, routers, switches, VLANs, firewalls, and intrusion detection/prevention systems.
  • Implement encryption technologies and security solutions, including VPNs, DNS, and VoIP protocols.
  • Manage centralized network/security access controllers and apply best practice security methods, including ethical hacking, penetration testing, and vulnerability assessment.
  • Conduct forensic investigations and incident response for network intrusions and cyber threats.
  • Evaluate emerging security technologies and ensure compliance with security policies and regulatory standards.
  • Provide supervision and mentoring to the network security team.
RequirementsQualifications:
  • Degree or Advanced Diploma (NQF7) or relevant industry certification (e.g., Cisco, Huawei, Alcatel, Juniper).
  • Certification in Palo Alto systems is highly advantageous.
  • 15+ years of experience in network security and telecommunications.
Skills and Experience:
  • In-depth knowledge of network security protocols, firewalls, intrusion detection, encryption, and privileged access management.
  • Experience in managing large-scale network security environments (1,000+ users).
  • Proficient in security technologies such as Advanced Persistent Threat (APT) protection, phishing prevention, and enhanced authentication mechanisms.
  • Hands-on experience with Next Gen Firewall technologies, Unix/Linux OS, and automation scripting for incident management.
  • Strong understanding of network and web protocols (TCP/IP, UDP, IPSEC, HTTP, HTTPS, etc.).
  • Experience with change management processes and security evaluations for software, hardware, and network infrastructure.
  • Must have a valid driver's license and own transport.
  • Supervisory Experience:
  • Experience leading teams and managing network security projects within a complex environment.


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