Zscaler Deployment & L3 Support Engineer_Contract

NTT SINGAPORE PTE. LTD.; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

NTT SINGAPORE PTE. LTD. is seeking a hands-on Zscaler Deployment & L3 Support Engineer responsible for implementation, migration, testing, and Day-2 operations across Zscaler security solutions.

You will deploy and support ZIA, ZPA, ZCC environments, configure tunnels, SSL inspection, and policy management; perform migrations, UAT, and production cutovers; analyze issues with Wireshark and Zscaler logs; and provide RCA and documentation.

Qualifications

• Hands-on experience with Zscaler ZIA, ZPA and ZCC environments.
• Expertise in GRE/IPsec tunnels, SSL inspection and security policy management.
• Experience with ZTNA, SAML/SSO and application access troubleshooting.

Responsibilities

• Deploy, configure, and support ZIA, ZPA, and ZCC environments.
• Implement GRE/IPsec tunnels, ZCC, and App Connectors.
• Configure and troubleshoot SWG, DNS, Firewall, SSL Inspection, and ZTNA policies.

Skills

Zscaler ZIA

Zscaler ZPA

Zscaler ZCC

GRE/IPsec

SSL Inspection

SAML/SSO

Packet Analysis

Log Analysis

Troubleshooting

Documentation

Stakeholder comms

Tools

Wireshark

PCAP

HAR Files

Job description

Role Overview:

Seeking a hands-on Zscaler Deployment & L3 Support Engineer responsible for implementation, migration, testing, and Day-2 operations support across Zscaler security solutions.

Key Responsibilities:

• Deploy, configure, and support ZIA, ZPA, and ZCC environments.
• Implement GRE/IPsec tunnels , ZCC , and App Connectors .
• Configure and troubleshoot SWG, DNS, Firewall, SSL Inspection, and ZTNA policies .
• Perform application onboarding, PAC/forwarding configuration, and SAML/SSO troubleshooting.
• Conduct migration activities, implementation testing, UAT support, and production cutovers.
• Analyze issues using Wireshark, PCAP, HAR files, and Zscaler logs .
• Provide L3 incident troubleshooting, root cause analysis (RCA), and operational documentation.

Required Skills:

• Strong hands-on experience with Zscaler ZIA, ZPA, and ZCC .
• Expertise in GRE/IPsec tunnels , SSL inspection, and security policy management.
• Experience with ZTNA, SAML/SSO, and application access troubleshooting .
• Proficiency in packet and log analysis using Wireshark, PCAP, and HAR tools .
• Excellent troubleshooting, documentation, and stakeholder communication skills.