Senior Network Security Engineer

SPECTRAFORCE • United State
Remote
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AI Summary

Design, implement, and support network security solutions with a strong focus on Zscaler technologies. Ensure secure connectivity, network visibility, and system resilience. Collaborate with cross-functional teams to support business and security needs.

Key Highlights
Configure and implement Zscaler solutions
Monitor and resolve incidents and performance issues
Troubleshoot network connectivity and application access issues
Key Responsibilities
Configure, implement, and support Zscaler solutions
Monitor and resolve incidents, tickets, and performance issues related to Zscaler
Troubleshoot network connectivity and application access issues
Technical Skills Required
Zscaler Internet Access (ZIA) Zscaler Private Access (ZPA) Zscaler Digital Experience (ZDX) Zscaler Client Connector (ZCC) Zero Trust Architecture Network segmentation & least privilege TCP/IP DNS Proxy VPN Remote Access Windows macOS mobile endpoints Logging and monitoring tools Terraform Python GitHub
Nice to Have
Zscaler certifications
CISSP or other security certifications

Job Description


Job Title: Zscaler Engineer (ZIA, ZPA, ZDX, ZCC Agent - are a must)

Duration: 12 months

Location: 100% Remote


Role Summary

The Network Security Engineer is responsible for designing, implementing, and supporting network security solutions with a strong focus on Zscaler technologies. This role ensures secure connectivity, network visibility, and system resilience while collaborating with cross-functional teams to support business and security needs.


Key Responsibilities

  • Configure, implement, and support Zscaler solutions (ZIA, ZPA, ZDX, ZCC Agent)
  • Monitor and resolve incidents, tickets, and performance issues related to Zscaler
  • Troubleshoot network connectivity and application access issues
  • Perform pre-production testing and issue triage
  • Manage traffic steering, PAC files, and proxy configurations
  • Implement network segmentation and Zero Trust architecture
  • Support cyber resilience and security enhancements
  • Work with application teams to resolve user access issues
  • Document configurations, changes, and troubleshooting steps
  • Identify and remediate security gaps and control weaknesses

Core Technical Skills

Zscaler & Security

  • Zscaler Internet Access (ZIA)
  • Zscaler Private Access (ZPA)
  • Zscaler Digital Experience (ZDX)
  • Zscaler Client Connector (ZCC)
  • Zero Trust Architecture
  • Network segmentation & least privilege

Zscaler Architecture Fundamentals (Must Know)

  • ZPA end-to-end traffic flow
  • Authentication vs Authorization
  • Machine Tunnel vs User Tunnel
  • Tunnel 1.0 vs Tunnel 2.0 (DNS & benefits)
  • PAC files (Forwarding PAC vs App Profile PAC)
  • DNS behavior and troubleshooting
  • App Connector fundamentals
  • Traffic steering concepts
  • ZIA vs ZPA use cases

Networking & Systems

  • TCP/IP, DNS, Proxy, VPN, Remote Access
  • Windows, macOS, and mobile endpoints
  • Logging and monitoring tools

Automation & Tools

  • Terraform (infrastructure automation)
  • Python or scripting
  • GitHub (version control)

Required Qualifications

  • 3–5 years of experience in network security
  • 2+ years of hands-on experience with:
  • Zscaler ZIA
  • Zscaler ZPA
  • Zscaler ZCC Agent
  • Zscaler ZDX
  • Strong troubleshooting and analytical skills
  • Bachelor’s degree in Computer Science, Engineering, or equivalent experience

Preferred Qualifications

  • Zscaler certifications
  • CISSP or other security certifications

Soft Skills

  • Strong communication (written & verbal)
  • Customer-focused mindset
  • Problem-solving and root cause analysis

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