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Network Security Specialist

Job in Midrand, Gauteng, South Africa
Listing for: Gijima Holdings: HR
Full Time position
Listed on 2026-06-12
Job specializations:
  • IT/Tech
    Cybersecurity, Network Security, Systems Engineer
Job Description & How to Apply Below

FORMAL EDUCATION

  • Grade 12
  • Information Technology or related field required
EXPERIENCE
  • +5 years’ technical experience in deployment of NGFW platforms (Palo Alto, Fortinet, Checkpoint)
  • + 5 years’ experience in Technical Information Security positions
  • Alignment and experience with good practices essential (NIST, ISO
    27001 or equivalent)
  • Practical experience in development of policy and standards
  • Network-based security experience is essential
  • Strong understanding of Zero Trust frameworks (NIST 800-207, ZTNA)
  • Solid networking fundamentals — BGP, OSPF, VXLan, SD-WAN, TLS inspection
  • Deception technology or honeypot deployment experience
  • Standards-based architecture with an understanding of how to implement, including compliance monitoring and enforce ability
TECHNICAL / LEGAL CERTIFICATION
  • Security Certifications in either Tufin, Firemon, Skybox, Algosec (optional)
  • ITIL foundation certificate (optional)
  • Fortinet NSE 7 certification (mandatory)
  • Fortinet NSE 6 WAF & Forti Authenticator (mandatory)
  • Checkpoint Firewall/Palo Alto Firewall Certification (mandatory)
  • Mimecast or equivalent certification (optional)
RESPONSIBILITIES
  • Design and maintain Zero Trust network architecture across hybrid and multi-cloud environments
  • Configure, tune, and deeply troubleshoot NGFW platforms (Palo Alto, Fortinet, Check Point, or equivalent)
  • Manage and optimise WAF rulesets, signatures, and custom policies to protect web-facing assets
  • Operate and tune IPS sensors — analyse alerts, reduce false positives, and lead incident response
  • Deploy and maintain NDR solutions (e.g. Darktrace, Link Shadow or similar) for east-west traffic visibility
  • Drive micro-segmentation, identity-aware access, and least-privilege network policies
  • Assist analysts with configuration analysis reports and remediation actions
  • Create and maintain configuration baselines for all network platform systems
  • Develop and implement information network and security plans and policies
  • Develop strategies to respond to and recover from a security breach
  • Develop or implement tools to assist in detection, prevention, and analysis of security threats
  • Investigate security breaches. Lead incident response, including steps to minimize the impact and then conducting a technical investigation into how the breach happened and the extent of the damage
JOB REQUIREMENTS KNOWLEDGE
  • Knowledge of network configuration auditing tools (e.g. Tufin, Firemon, Skybox, Algosec)
  • Knowledge of CIS and other standards (e.g NIST) for network equipment
  • 6+ years in network security engineering roles
  • Knowledge of Wireless configuration best practices
  • Hands‑on mastery of at least one enterprise NGFW platform at depth (not just policy changes)
  • Email Gateway Security experience eg. Mimecast or equivalent
  • SASE experience eg. Zscaler or equivalent
SKILLS
  • Advanced communication skills (report writing, email and presentation)
  • Advanced Problem‑solving skills
  • Advanced Customer orientation
  • Functional coaching skills
  • Proven WAF experience — OWASP Top 10, custom rule development, bot management
KEY COMPENTENCIES Essential
  • Adhering to Principles and Values
  • Delivering Results and Meeting Customer Expectations
  • Deciding and Initiating Action
  • Planning and Organising
  • Self‑driven
  • A Evaluate and onboard new security tooling — presenting business cases and ROI to leadership
  • Writing and Reporting
Desirable
  • Exposure to OT/ICS network security
  • Scripting ability for automation (Python, Ansible, or Terraform)
  • Coping with Pressures and Setbacks
  • Experience in cloud environments (AWS/Azure/GCP security constructs)
  • Achieving Personal Work Goals and Objectives
  • Following Instructions and Procedures
  • Learning and Researching
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