Ref: #67712

Network security consultant

Senior Network Security Support Specialist – Security Service Edge (SSE) role:


Summary Description:
We are seeking a Senior Network Security Support Specialist with deep experience in Security Service Edge (SSE) and Zscaler solutions to join our Cybersecurity Practice Team. This role involves supporting a major enterprise client in managing and evolving their network security posture, focusing on Zscaler, firewalls, and SSE technologies. You will act as a senior escalation point, working on complex issues, implementations, and service improvements in a multi-vendor environment.


Role Type: Contract
Start Date: Immediate
Salary: Day Rate + 
Location/Language: [Insert Location or Remote] / English


Requirements Description:

  • Minimum of 10+ years’ experience in network and cybersecurity roles.

  • Extensive knowledge of Security Service Edge (SSE) solutions, particularly Zscaler (ZIA, ZPA, ZCC, ZDX).

  • Proven track record of working in large-scale, multi-vendor environments.

  • Strong ability to troubleshoot, design, and manage network security architectures.

  • Fluent in English (written and verbal).


Tasks Description:

  • Provide 3rd-level support for Zscaler and SSE technologies.

  • Analyze and resolve complex network and security issues.

  • Design, configure, and optimize Zscaler policies, application segments, and traffic flows.

  • Lead incident management and root cause analysis.

  • Migrate legacy proxies to Zscaler cloud-based infrastructure.

  • Collaborate with service providers and internal teams to maintain SLA and quality.

  • Participate in project implementation and service improvement initiatives.

  • Document technical processes and deliver training/knowledge sessions.


Essential Skills/Experience Description:

  • Hands-on experience with:

  • Zscaler ZIA, ZPA, ZDX, ZCC

  • Secure Web Gateways, CASB, ZTNA

  • SSL Inspection & Certificate Management

  • Firewall management (rule creation, review, remediation)

  • Strong background in:

  • Routing & Switching (BGP, OSPF, MPLS)

  • VLAN/VTP/STP/HSRP/VRRP/GLBP/VSS/vPC

  • Cloud networking (preferably Azure)

  • Proxy rule configuration and exception handling

  • Experience with network automation tools (e.g., REST API)

  • Proficiency in Cisco technologies: ISE, AAA, ACS, WLC, Prime, DNA


    Desirable Skills/Additional Information Description:

    • Industry certifications: CCNA, CCNP, CCIE (preferred)

    • Experience with Cisco SD-WAN, SDN configurations, or Azure ExpressRoute

    • Strong interpersonal and communication skills with the ability to interface with senior stakeholders

    • Ability to work independently in high-pressure environments


    Team Contact:
    📧 jude.russell@next-ventures.com

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