Principal Specialist – Cyber Security

6 days ago


Johannesburg Metropolitan Area, South Africa Smart4 Energy Full time R1 200 000 - R1 800 000 per year

Job Title: Principal Specialist – Cyber Security (Networks) (
Midrand, 6-month FTC, extendable)

About the Role

We are looking for an experienced
Principal Specialist in Cyber Security Networks
. The role focuses on leading the design, implementation, and optimisation of advanced cybersecurity controls across mobile, fixed, satellite, cloud, and IoT network environments. You will drive high-impact security initiatives, ensure compliance with global security standards, strengthen detection and threat-management capabilities, and provide leadership to a growing cybersecurity team.

Key Responsibilities

  • Lead the design and deployment of cybersecurity solutions for diverse network technologies (mobile, fixed, satellite, cloud, IoT).
  • Oversee major security workstreams including Enterprise CPE, IP Core Networks, NMS, Office Connectivity, Cyber Controls, Monitoring & Analytics, and Measurement & Assurance.
  • Conduct risk assessments and enforce compliance with ISO 27001, NIST, CIS Controls, and regulatory requirements.
  • Implement and enhance monitoring processes using SIEM, NetFlow, telemetry, and assurance tools.
  • Drive network hardening and security configuration standards across CPE, PE devices, and core network infrastructure.
  • Mentor junior team members and contribute to capability development across the function.

Requirements

  • 8+ years' experience in Cyber Security within Enterprise/IP Networks
  • Relevant IT degree/qualification
  • Strong IP networking skills (Cisco/Nokia/Juniper, BGP, OSPF, MPLS, SD-WAN)
  • Hands-on experience with security engineering (CPE/PE hardening, TACACS+/Radius, PAM, VPN/Zero Trust)
  • Solid understanding of NMS and management-plane security
  • Knowledge of ISO 27001, NIST, CIS Controls, MITRE ATT&CK
  • Experience with SIEM, NetFlow, telemetry, and compliance tools
  • Ability to lead security projects and mentor junior team members
  • Preferred certifications: ISO 27001, CCIE Security, CCSP, CISM, CISSP, CRISC, CISA


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