Network Engineer

Date posted: 6 July 2026

Pay: R30 000,00 - R40 000,00 per month

Job description:

Network Security Engineer

Employment Type: Fixed-Term Contract (6 Months)

Location: Client Site, Gauteng Johannesburg.

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Why This Role Matters

Zinia is seeking an experienced Network Security Engineer to support one of our enterprise clients on a six-month fixed-term engagement.

This role is responsible for protecting and strengthening the client's network security environment by implementing, maintaining, and optimising enterprise security solutions. The successful candidate will improve the resilience, stability, and security of critical infrastructure while supporting secure connectivity, proactive threat management, and knowledge sharing with the client's internal teams.

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Role Overview

The Network Security Engineer will be responsible for implementing, maintaining, and supporting enterprise network security solutions across a complex infrastructure environment.

The role includes responsibility for:

• Network security administration
• Threat prevention and monitoring
• Network operations
• Security compliance
• Infrastructure support
• Technical documentation
• Knowledge sharing
• Continuous improvement

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Key Responsibilities

Network Security Administration

Implement, configure, and maintain enterprise firewall and network security environments while ensuring secure connectivity, policy management, and network segmentation across the client's infrastructure.

Threat Prevention & Monitoring

Monitor and optimise network security technologies, investigate security incidents, perform vulnerability remediation, and strengthen the client's overall security posture.

Network Operations

Support the ongoing availability and performance of network security infrastructure through proactive monitoring, firmware upgrades, maintenance, and incident resolution.

Documentation & Compliance

Maintain accurate technical documentation, network diagrams, operational procedures, and security records while ensuring compliance with organisational security standards and audit requirements.

Collaboration

Work closely with the client's infrastructure and technical teams to deliver secure, reliable, and resilient network services while contributing to infrastructure improvement initiatives and knowledge sharing.

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Key Stakeholders

Internal

• Technical Lead
• Service Delivery Manager
• Professional Services
• Engineering Team

External

• Client Infrastructure Teams
• Client IT Management
• Technology Vendors
• Cloud Providers

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Success Measures

• Enterprise network security successfully maintained.
• Firewall environments optimised and secured.
• Network availability and resilience improved.
• Security incidents effectively investigated and resolved.
• Documentation maintained to a high standard.
• Compliance with security standards achieved.
• Knowledge successfully shared with client teams.
• Project objectives delivered within the engagement period.

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Requirements

Essential

Qualifications

• Degree or Diploma in Information Technology, Computer Science, Cybersecurity, or a related discipline.

Experience

• Minimum 5 years' experience in enterprise network security.
• At least 2 years' experience supporting Huawei firewall technologies.
• Experience administering Cisco, Fortinet, or Palo Alto security solutions.
• Experience supporting enterprise networking and cybersecurity environments.

Technical Skills

Strong experience with:

• Huawei Next-Generation Firewalls (NGFW)
• Cisco, Fortinet or Palo Alto Firewalls
• VPN Technologies (IPsec & SSL)
• IPS & IDS
• Web Application Firewalls (WAF)
• DDoS Protection
• Routing & Switching (BGP, OSPF, VLANs, VXLAN)
• Network Monitoring Platforms

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Advantageous

• Huawei HCIP-Security / HCIE-Security
• Cisco CCNP Security
• Fortinet NSE
• Palo Alto PCNSA / PCNSE
• Python scripting
• API integrations

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Development

Continued development in enterprise network security, threat prevention, firewall technologies, and infrastructure security best practices.

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Additional Information

• Six-month fixed-term contract.
• Primarily client-site based.
• Occasional travel may be required.
• Equivalent qualifications and experience will be considered.

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Personal Attributes

• Takes ownership.
• Strong analytical thinker.
• Security-focused mindset.
• Detail-oriented.
• Collaborative.
• Professional communicator.
• Adaptable.
• Calm under pressure.

Job Types: Temp to perm, Temporary

Contract length: 6 months

Work Location: In person

Pay: R30 000,00 - R40 000,00 per month

Work Location: In person