Zscaler Engineer - L2/L3

Zscaler Engineer | L2 / L3
Location: Delhi / Noida / Gurgaon / Mumbai / Pune / Bangalore
Experience: 2+ Years
Employment Type: Full-time
Work Mode: Hybrid
Shift: 24×7
About the Role
We are looking for a Zscaler Engineer - L2/L3 with strong hands-on production experience across ZIA, ZPA and Zscaler Client Connector (ZCC).
You will be responsible for troubleshooting Zscaler and enterprise networking issues, handling escalations, resolving connectivity and application-access problems, performing RCA, and implementing permanent fixes.
Key Responsibilities
ZIA | Zscaler Internet Access
Troubleshoot ZIA architecture, traffic flow and forwarding methods including GRE, IPSec, PAC and ZCC
Configure and troubleshoot URL Filtering, Firewall, SSL Inspection and Cloud App policies
Troubleshoot DNS, SSL/TLS, proxy and internet connectivity issues
Analyze ZIA logs and analytics for troubleshooting, performance issues and RCA
Work with ZIA policies, tenant profiles and subclouds
ZPA | Zscaler Private Access
Troubleshoot ZPA architecture and end-to-end user-to-application flow
Work with App Connectors, Service Edge and Private Applications
Troubleshoot application access, segmentation and ZPA policy issues
Troubleshoot App Connector, DNS and application connectivity problems
Perform RCA for complex ZPA incidents
ZCC | Zscaler Client Connector
Handle ZCC deployment, configuration and troubleshooting
Troubleshoot ZIA/ZPA traffic forwarding through ZCC
Resolve authentication, SSO and enrollment issues
Analyze ZCC logs and diagnostics across Windows and macOS
Troubleshoot endpoint conflicts involving VPN, Proxy, Firewall and EDR
Networking & Troubleshooting Skills
Strong TCP/IP, DNS, Routing, Proxy and SSL/TLS fundamentals
Hands-on knowledge of GRE and IPSec
Wireshark and packet capture analysis
Experience handling L1/L2/L3 escalations and P1/P2 incidents
Strong troubleshooting, incident management and RCA skills
Ability to implement permanent remediation/fixes
Mandatory Requirements
2+ years of experience
Real production experience with ZIA + ZPA + ZCC
Hands-on Zscaler troubleshooting and policy configuration
Experience with ZPA App Connectors and application access
Experience with ZCC deployment, authentication/enrollment and diagnostics
Strong networking and packet-level troubleshooting
Experience with DNS, SSL/TLS, proxy, routing and connectivity troubleshooting
P1/P2 incident handling and RCA experience
Good communication and incident management skills
Important: Candidates with only theoretical knowledge, certification/training exposure, or experience with only one or two Zscaler products will not be considered. Production experience across all three: ZIA + ZPA + ZCC is mandatory.

Work arrangement
Hybrid