Job Description

Key Responsibilities:

• Serve as the L3 escalation point for ZIA, ZPA, ZDX, and Browser Isolation incidents affecting user connectivity or application performance.

• Perform end-to-end packet flow analysis involving GRE/IPSec tunnels, PAC file behavior, DNS resolution, and authentication exchanges with Id Ps (SAML, SCIM, OAuth).

• Troubleshoot complex integrations between Zscaler connectors, public/private applications, and enterprise firewalls (e.g., Palo Alto, Cisco, Fortinet).

• Conduct advanced health monitoring using ZDX analytics and API-based telemetry from Zscaler Nano/Z App clients.

• Use Zscaler Central Authority (ZCC), ZIA Admin Portal, and ZPA Admin Portal to configure, validate, and optimize policies across user groups, segments, and tenant environments.

• Diagnose and resolve SSL inspection issues, certificate chain mismatches, or DPI conflicts affecting end-user traffic.

• Optimize ZIA and ZPA Access Control Policies, App Segmentation Policies, and ensure efficient traffic routing and posture checks.

• Integrate and maintain authentication and provisioning with Azure AD, Okta, and on-prem AD Connectors; automate onboarding/offboarding workflows through APIs or scripts.

• Conduct Zscaler App Connector deployments, upgrades, and health checks on virtual platforms (VMware, AWS, Azure).

• Lead post-incident reviews and root cause analyses, ensuring lessons learned are operationalized via Knowledge Base documents or automated monitors.

• Train and mentor L1/L2 engineers in interpreting Zscaler logs, leveraging Zscaler Diagnostics (e.g., Packet Capture, Browser Access Logs), and implementing operational best practices.

• Maintain documentation for baseline configurations, topology diagrams, and approval workflows for policy changes.

• Collaborate with vendor TAC and internal Security Engineering teams for escalations and platform optimization.

Required Skills & Experience:

• Minimum 10 years of experience in network/security engineering, with 5+ years dedicated to Zscaler platforms (ZIA, ZPA, ZDX, Browser Isolation).

• Deep understanding of:

• Proxy architectures (explicit and transparent modes) and SSL/TLS inspection pipelines

• GRE/IPSec tunnel establishment with branch gateways or SD-WAN devices

• Authentication integrations (SAML, OAuth, LDAP, SCIM) and troubleshooting identity flow mismatches

• ZDX client diagnostic data, synthetic monitoring setup, and endpoint telemetry analysis

• Adaptive policy control using ZTNA segmentation for private apps and traffic steering via PAC/transparent proxy rules

• Proficiency with network diagnostic tools: Wireshark, Zscaler Analyzer, curl/wget, nslookup/dig, and browser developer tools.

• Sound knowledge of routing, VPN, DNS, and certificate management in enterprise hybrid networks.

• Experience with Zscaler API usage for reporting, policy automation, and workflow orchestration is a plus.

• Familiarity with script-based automation (Python, PowerShell) and integration with ITSM tools (Service Now, Jira).

• Strong analytical, documentation, and communication skills with the ability to translate technical findings into actionable recommendations.

• Preferred certifications: ZCCP-IA, ZCCP-PA, ZDX Certified, CCNP Security, or equivalent.

Work Conditions

• Role based out of Hyderabad or Pune.

• Availability for 24x7 escalation support and participation in on-call rotations for high-severity incidents.