Arun Ramachandran
Network Security Engineer | Palo Alto | Checkpoint | Zscaler | Bluecoat | Netscaler | Cisco ISE| Cisco ASA | DNS
- Role
- Networking Managed Services Engineer (L2) at NTT DATA, Inc.
- Location
- Kottayam, KL, IN
- LinkedIn followers
- 500 followers
About Arun Ramachandran
Experienced Network Security Engineer with a strong focus on Palo Alto and Checkpoint Firewalls, complemented by expertise in Bluecoat Proxy, Zscaler, Cisco ISE, Netscaler, and DNS management. I have a proven track record of ensuring robust network security and efficient operations through timely upgrades and proactive troubleshooting.Key Achievements- Successfully upgraded and maintained Palo Alto and Checkpoint Firewalls, ensuring optimal performance and security compliance- Expertly resolved complex issues related to Palo Alto and Checkpoint devices, enhancing overall system reliability- Contributed to the migration of Cisco ISE from version 2.7 P9 to 3.2 P6, improving authentication and access control capabilities- Configured security rules in Palo Alto and Checkpoint Firewalls, as well as Bluecoat and Zscaler Proxy, tailored to meet specific client needs- Managed the creation and modification of Netscaler load balancers to optimize application performance- Performing the installation and renewal of SSL certificates on network devices and load balancers, safeguarding data in transit- Administered DNS management, including the creation, modification, and deletion of both Windows-based internal and Unix-based external records- Delivered timely resolutions to client issues, consistently meeting SLA requirements and ensuring client satisfaction.I am passionate about leveraging my technical skills to enhance network security and support business objectives.
Experience
Networking Managed Services Engineer (L2)
Dec 2025 — Present · Chennai, IN
Education
Govt. Technical High School
THSLC
Bishop Vayalil Memorial Holy Cross College, Cherpunkal P.O., Pala 686 584
BCA, Computer Science
BITS Pilani Work Integrated Learning Programmes
Master of Technology - MTech, Computing Systems and Infrastructure
Holy Cross Higher Secondary School
+2, Computer Science
C-SOFT IT SOLUTIONS & TRAINING
CCNA, Cisco Certified Network Associate (CCNA)
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