Senior Network Security Engineer (L2/L3) ZIA/ZPA
ntt singapore pte. ltd. • singapore, singapore • Posted June 05, 2026
About the Role
Should focus on day-2-day operations, incident, change management, and user centric troubleshooting.
Operate and continuously improve the organization'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.
Keyresponsibilities (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 administration: create/update rules, exceptions, and change...
Operate and continuously improve the organization'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.
Keyresponsibilities (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 administration: create/update rules, exceptions, and change...