Network Security Engineer

Job Reference Number: Recruit200-201

Department: Tax

Business Unit:

Industry: Information Technology

Job Type: Contract

Positions Available: 2

Salary: Market Related

The Network Security Engineer is responsible for protecting digital infrastructure by designing, implementing, & maintaining advanced network security systems. The engineer will be responsible for managing firewalls, IPS, VPNs, DDoS protection, and Cisco ISE, while monitoring threats &ensuring compliance with ISO/IEC 27002 standards. This role supports key org goals by safeguarding sensitive data.

Job Description

Key Responsibilities:

• Design, implement, and maintain robust network security infrastructure to protect Customer's digital environment.

• Manage and optimize security platforms including firewalls, intrusion prevention systems (IPS), DDoS mitigation tools, VPNs, secure email gateways, and Cisco Identity Services Engine (ISE).

• Monitor network traffic to detect anomalies, investigate potential threats, and respond promptly to security incidents.

• Conduct forensic analysis and support incident response to ensure timely containment and resolution of security events.

• Ensure compliance with cybersecurity policies, ISO/IEC 27002 standards, and relevant regulatory requirements.

• Oversee the lifecycle management of digital certificates and the secure provisioning of third-party network connections.

• Manage and resolve network security requests and incidents through the Remedy system within agreed service levels.

• Maintain accurate technical documentation, configurations, and incident logs to support audits and risk reporting.

• Collaborate with internal teams to identify vulnerabilities, recommend security enhancements, and strengthen overall network defense.

Closing date: 12th of November 2025

Position type: 24 months contract

Available positions: 2

Hybrid position and successful candidates must be based in Gauteng area

These positions are open to persons with disabilities.

Job Requirements

Qualifications and Experience:

• Bachelor's degree in information security, Computer Science, and/or Matric with 6 - 8 years Network Security experience.

• CCNP Security, CISSP, or equivalent industry-recognized security certifications CCNP Security, CISSP, or equivalent industry-recognized security certifications.

• Minimum of 7 years' experience in network security engineering or a related discipline.

• Proven experience managing and maintaining enterprise-grade security infrastructure.

• Demonstrated expertise in incident response, threat mitigation, and vulnerability remediation.

• Experience working within regulated environments and adhering to cybersecurity standards such as ISO/IEC 27002.

Key Skills and Competencies:

• Technical Expertise: In-depth knowledge of network protocols, Cisco firewall configurations, and perimeter defense technologies.

• Security Tools Proficiency: Hands-on experience with Web Application Firewalls (WAF), Next-Generation Firewalls (NGFW), Intrusion Prevention Systems (IPS), DDoS protection tools, SIEM platforms, and Cisco Identity Services Engine (ISE).

• Vulnerability Management: Strong understanding of OWASP Top 10 vulnerabilities and the ability to assess, remediate, and mitigate risks across cloud and on-premise environments.

• Incident Response: Skilled in detecting, analyzing, and responding to network security incidents and conducting forensic investigations.

• Analytical and Problem-Solving Ability: Exceptional troubleshooting and diagnostic skills to identify and resolve complex network security issues.

• Regulatory and Compliance Awareness: Familiarity with cybersecurity frameworks and standards, particularly ISO/IEC 27002 and related regulatory obligations.

• Documentation and Reporting: Ability to maintain accurate technical records, incident logs, and contribute to audit and risk reporting.

• Collaboration and Communication: Strong interpersonal skills to work effectively across technical teams and convey security issues to non- technical stakeholders.