Senior Network Security Engineer - ZIA/ZPA

ntt singapore pte. ltd.

Full-time Other-General
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Location
singapore, singapore, Singapore
Posted
July 04, 2026

Job Description

Should focus on day-2-day operations, incident, change management, and user centric trouble shooting.

Operate and continuously improve the organizationโ€™s Secure Access Service Edge (SASE) services using Zscaler Internet Access (ZIA) and Zscaler Private Access (ZPA), ensuring secure, reliable user connectivity and strong policy governance.

Key responsibilities (Operational / BAU)
  • Runday-to-day operations for ZIA (web gateway, SSL inspection, URL filtering,cloud app control, sandbox, DLP , DNS security).
  • Runday-to-day operations for ZPA (App Segments, Access Policies, Connectormanagement, posture requirements, policy troubleshooting).
  • Monitorservice health and user experience; proactively identify trends and recurringissues.
  • HandleL2/L3 incident troubleshooting: authentication issues (SSO/SAML),PAC/forwarding issues, tunnel/connector issues, policy blocks, certificate/SSLinspection issues.
  • Performpolicy administrati...