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Whitehall Resources Ltd Logo Whitehall Resources Ltd · IT - Administration

Zscaler Engineer

United Kingdom · Job Posted May 20, 2026
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Job Description

Whitehall Resources currently require an experienced Zscaler Engineer to work with a key client **Please note this role falls INSIDE IR35** Role Description: The Zscaler Engineer is responsible for understanding, operating, and supporting the organisation’s existing Zscaler deployment (ZIA/ZPA). The role focuses on reviewing the current implementation, maintaining day to day operations, and ensuring secure, reliable access for users and applications. The engineer will work closely with the Network and IDAM teams to maintain aligned and secure services.

Job Responsibility

  • Review and document the existing Zscaler architecture, traffic flows, authentication methods, and integrations
  • Maintain day to day operations including monitoring logs, managing policies, and supporting user/device onboarding
  • Troubleshoot ZIA/ZPA issues such as connectivity, authentication failures, Zscaler Client Connector behaviour, and policy related blocks
  • Collaborate closely with the Network team on traffic routing, GRE/IPsec tunnels, DNS, SD WAN, and connectivity optimisation
  • Partner with the IDAM team on SSO/SAML integrations, SCIM provisioning, identity policies, and certificate/SSL requirements
  • Produce operational and compliance reports covering user activity, threats, tunnel health, and usage patterns
  • Support integrations with SIEM, security tools, and identity platforms
  • Assist with audits, security reviews, and adherence to enterprise security standards
  • Recommend improvements, maintain configuration hygiene, and track new Zscaler features

Requirements

  • Hands on experience administering Zscaler ZIA and/or ZPA
  • Strong knowledge of Zero Trust, DNS/HTTPS, SSL inspection, GRE/IPsec tunnels, and SSO integrations (Azure AD/Okta)
  • Experience troubleshooting network, identity, and policy driven issues
  • Ability to work effectively with Network and IDAM teams to resolve cross domain issues
  • Good documentation and communication skills

Nice to have

  • Zscaler certifications (ZCCA IA, ZCCA PA, ZCP)
  • Experience with SD WAN, identity platforms, automation (PowerShell/Python), and ITIL processes
  • Background in network or cloud security
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