Mohan Sai Kumar Malluri
Bengaluru
Summary
Cybersecurity Architect with extensive experience at Cognizant, specializing in Zscaler solutions. Expertise in designing secure internet access and optimizing performance. Proven ability to enhance security posture and ensure compliance, delivering impactful results in enterprise environments.
Overview
10
10
years of professional experience
1
1
Certification
Work History
Cybersecurity Architect
Cognizant
- SME for Zscaler in cross-functional projects, providing technical guidance to network, security, and cloud teams.
- Design and implement secure internet access solutions using Zscaler Internet Access (ZIA) and Zscaler Private Access (ZPA).
- Develop architecture diagrams and integration strategies for Zscaler with the existing security stack (firewalls, proxies, CASB, DLP, SIEM).
- Lead end-to-end deployment of Zscaler services across global enterprise environments.
- Configure policies for secure web gateway, SSL inspection, URL filtering, sandboxing, and advanced threat protection.
- Monitor and optimize Zscaler performance, ensuring minimal latency and high availability.
- Troubleshoot complex issues related to traffic routing, authentication, and application access.
- Ensure Zscaler configurations align with organizational security standards and regulatory compliance.
- Prepare technical documentation, SOPs, and training materials for internal teams.
- Collaborate with Zscaler TAC for complex troubleshooting and root cause analysis.
- Initiate Service improvement Plans to enhance security posture based on client infrastructure.
Tech Lead
Diligent Global Services
Bangalore
03.2021 - 08.2024
- Managed security policies for web filtering, threat prevention, and user authentication.
- Monitored Zscaler platform for security incidents and performance issues.
- Provided troubleshooting support for Zscaler-related technical challenges.
- Implemented changes on Zscaler platform in accordance with change management processes.
- Maintained documentation and generated reports on system performance and security events.
- Conducted training sessions to enhance proper utilization of Zscaler platform.
Senior Support Engineer
TEKsystems
Bangalore
02.2020 - 03.2021
- Manage, Deploy, Troubleshoot client Enterprise networks.
- Troubleshoot Zscaler internet access and ZPA Traffic forwarding issues.
- Manage and Maintain Firewall devices with client requests. (Palo Alto, ASA)
- Involved in client meeting for Vulnerability assessments.
- Execute planned changes for policy creation and Software upgrades on cisco Switches and routers.
Technical Lead
HCL Systems
Bangalore
10.2019 - 02.2020
- Hired for Cisco Project, Related to Implementation and migration.
Network Security Consultant
Capgemini
Bangalore
01.2019 - 10.2019
- Provided subject matter expertise for DC infrastructure, enterprise network, and Zscaler proxy solutions.
Supported PTP, DNS, and Nexus configurations to enhance network performance.
Managed Cisco routers and switches to ensure reliable connectivity.
Conducted troubleshooting for infrastructure issues in a timely manner.
Network Consultant
Vodafone
Bangalore
12.2015 - 01.2019
- Managed and implemented LAN, WAN, and Wi-Fi on enterprise networks and data centers.
- Supported daily operations through Change and Fault management following ITIL standards.
Network Analyst
Alcatel-lucent
06.2014 - 12.2015
- Managed core network operations of TNZ Chorus in New Zealand.
- Troubleshot leased line circuits at 100 Mbps, 1 Gbps, and 10 Gbps speeds.
Education
B Tech - Electronics and Communication Engr.
01.2014
Intermediate -
01.2010
Skills
- ZIA and ZPA
- ZDX
- Cisco VPN
- BGP and DNS management
- Wireshark analysis
- Python programming
- NG-firewall security
- Routing and switching
Certification
- ZIA Administrator
- ZIA Professional
- CCNA
- CCNP
- ITILV3
- Prince 2
Disclaimer
Finally, I am reasonably aware of the explanatory subjects as mentioned above and the generic methodology in the management side implementation for effective usage of resources cordially both human and mechanical resources. I am also confident of my ability to work in a team.
Timeline
Tech Lead
Diligent Global Services
03.2021 - 08.2024
Senior Support Engineer
TEKsystems
02.2020 - 03.2021
Technical Lead
HCL Systems
10.2019 - 02.2020
Network Security Consultant
Capgemini
01.2019 - 10.2019
Network Consultant
Vodafone
12.2015 - 01.2019
Network Analyst
Alcatel-lucent
06.2014 - 12.2015
Cybersecurity Architect
Cognizant