Network Security Specialist

Network Security Specialist, Palo Alto, Fortinet, Zscaler

I am seeking a Network Security Specialist to join a high‑performing connectivity engineering team within a complex, enterprise‑scale environment. This role will play a key part in designing, implementing, and governing network security controls across a modern hybrid infrastructure. You will help drive the adoption of Zero Trust architecture and micro‑segmentation, ensuring security is embedded into all layers of connectivity.

Key Responsibilities

• Design, implement and maintain enterprise network security controls, including firewalls, proxies, and secure access platforms
• Act as a subject matter expert across leading security technologies (Palo Alto, Fortinet, Zscaler)
• Define and enforce security policies across data centre, campus, cloud, and hybrid environments
• Lead complex troubleshooting across network security issues, balancing security, performance, and availability
• Contribute to the development of the network security roadmap aligned with wider technology strategy
• Design and implement Zero Trust architectures, including identity‑based access controls
• Develop and execute micro‑segmentation strategies for both traditional and containerised workloads
• Support cloud, Kubernetes/OpenShift, and automation initiatives with secure‑by‑design principles
• Maintain network security standards, policies and design patterns
• Support audits, risk assessments, and regulatory requirements
• Collaborate with infrastructure, platform, application, and security teams to embed best practices
• Provide technical leadership and mentoring to engineering teams
• Act as a 3rd line escalation point for complex network security issues

Required Experience

• Proven experience in enterprise network security engineering within large, complex environments
• Strong hands‑on expertise with:
  • Palo Alto Networks (PAN‑OS, Panorama)
  • Fortinet (FortiGate, FortiManager, FortiAnalyzer)
  • Zscaler (ZIA, ZPA)
• Experience designing and implementing:
  • Network segmentation and micro‑segmentation
  • Zero Trust architectures
  • Firewall and proxy security policies
• Strong knowledge of hybrid environments (on‑prem, cloud, containerised platforms)
• Solid understanding of core networking technologies:
  • TCP/IP, BGP, OSPF, VLANs, VPN, NAT, DNS
• Experience with network monitoring, analytics, and packet capture tools
• Exposure to security within Kubernetes / OpenShift environments
• Understanding of automation / infrastructure‑as‑code approaches
• Experience operating within ITIL‑based environments

Skills & Competencies

• Ability to translate high‑level security policy into scalable technical solutions
• Strong analytical and problem‑solving skills
• Excellent communication and stakeholder engagement ability
• Hands‑on, detail‑oriented approach with a strategic mindset

Desirable Qualifications

• Industry certifications such as PCNSE, NSE, CCNP Security, or CISSP
• Experience in highly regulated or mission‑critical environments
• ITIL or project management certifications

3 days on site each week required.

McGregor Boyall is an equal opportunity employer and does not discriminate on any grounds.

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