MANOHAR PANDIRI
Visakhapatnam
Summary
Experienced Network Security Engineer with 4.6 years in Zscaler platform administration (ZIA, ZPA, ZDX) focused on Zero Trust security frameworks. Specialises in ZIA policy configuration, GRE/IPSec tunnel deployment, and ZPA application segmentation and access policies. Utilises ZDX for monitoring digital experience metrics and conducts thorough root cause analysis across network and application layers. Strong troubleshooting skills in TCP/IP, DNS, and SSL/TLS enhance security posture and user experience.
Overview
1
1
Certification
5
5
years of professional experience
Work History
Network and Security Engineer
Tata consultancy services
Visakhapatnam
12.2021 - Current
- Implemented and managed ZPA application segments, access policies, app connectors, connector groups, and server groups to enable secure Zero Trust access to internal applications.
- Configured and maintained ZIA security policies, including URL Filtering, Cloud App Control, SSL Inspection, File Type Control, and Data Loss Prevention (DLP), to secure and protect internet-bound traffic.
- Administered and managed Zscaler Internet Access (ZIA), Zscaler Private Access (ZPA), and Zscaler Digital Experience (ZDX) for an environment of 20,000+ users to provide secure access to internet and private applications.
- Installed, upgraded, and monitored ZPA App Connectors and ZPA Service Edge components to maintain high availability and enhance performance.
- Deployed and managed Zscaler Client Connector across Windows and macOS ensuring seamless user connectivity.
- Investigated and resolved user connectivity, authentication, and application access issues using ZDX insights, ZIA logs, and ZPA diagnostics.
- Monitored end-user experience using ZDX, analysing device health, network performance, application response time, and ISP metrics to identify areas for improvement.
- Integrated Zscaler with SIEM platforms such as Microsoft Sentinel for centralized log collection, monitoring, and security incident analysis.
- Configured Microsoft Entra ID (Azure AD) integration with Zscaler for SAML-based Single Sign-On (SSO) authentication and SCIM-based user provisioning, enabling secure authentication and automated user lifecycle management.
- Performed policy tuning and optimization to improve security posture while minimizing false positives and user impact.
- Developed and maintained location-based policies, user groups, and department-specific access controls to align with organisational requirements.
- Monitored service health, connector status, tunnel performance, and system alerts to ensure maximum availability.
- Managed production changes for ZIA, ZPA, and ZDX by following ITIL Change Management processes and handled Incident Management by troubleshooting and resolving ZIA, ZPA, and ZDX connectivity within SLA targets.
- Administered PAC files to facilitate optimal network routing and access control.
- Documented standard operating procedures (SOPs), architecture diagrams, troubleshooting guides, and knowledge base articles.
Education
Bachelor of technology - Mechanical engineering
Raghu engineering college
Visakhapatnam06-2020
Diploma of Higher Education - Mechanical engineering
M.R.A.G.R Govt. polytechnic
Vizianagaram04-2017
SSC -
Bashyam High school
Visakhapatnam04-2014
Skills
- Zscaler Internet Access (ZIA)
- Zscaler Private Access (ZPA)
- Zscaler Digital Experience (ZDX)
- Zero Trust Access
- App Connector
- TCP/IP
- DNS
- SSL/TLS
- GRE/IPSEC Tunnel
- Tunnel Migration
- Network Troubleshooting
- Log Analysis
- Root Cause Analysis
- Change Management
- Incident Management
- Security policy management
- ServiceNow
Certification
- Zscaler Digital Transformation Administrator(ZDTA) certified
- Zero Trust Cyber Associate(ZTCA)
Timeline
Network and Security Engineer
Tata consultancy services
12.2021 - Current
Bachelor of technology - Mechanical engineering
Raghu engineering college
Diploma of Higher Education - Mechanical engineering
M.R.A.G.R Govt. polytechnic
SSC -
Bashyam High school