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Bharath Katta
Senior Network Engineer @Grid Dynamics
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WORK HISTORY
Senior Network Engineer @Grid Dynamics
OH, US
Reviewed and approved pre-change firewall and Zscaler ZIA/ZPA policy requests using Palo Alto NGFW and Panorama, enforcing least-privilege access, application-based segmentation, and SSL decryption policies, ensuring compliance with regulatory frameworks such as NIST, ISO 27001, and CIS Controls, which improved security posture by 30%.• Conducted post-implementation firewall audits, including rule validation, logging verification, and NAT configuration checks, leveraging Panorama and Zscaler reporting to ensure adherence to change management processes, resulting in a 25% reduction in policy drift incidents.• Performed firewall rule lifecycle management by recertifying and optimizing security rules, removing stale entries, and implementing risk-based prioritization, while enforcing Zero Trust principles and micro-segmentation strategies, effectively minimizing the attack surface by 20%.• Identified and remediated security risks in complex network topologies, including hybrid cloud and multi-data center environments, collaborating with SOC, cybersecurity, and application owners to track and resolve policy exceptions, enhancing overall network security by 15%.• Evaluated and enforced Zero Trust access controls and dynamic user- and device-based policies across enterprise perimeter, cloud (AWS/Azure), and SaaS applications using Palo Alto NGFW, Panorama, and Zscaler, improving secure remote access efficiency by 35%.
EDUCATION
University of North Texas
Master's degree, Computer Science
GIET College of Engineering, NH-5, Chaitanya Knowledge City, Rajahmundry, PIN -533296 (CC-6R)
computer science engineering, CSE
ABOUT BHARATH KATTA
8 years of experience networking, designing, configuring, implementing and troubleshooting Data centers, Enterprise, LAN, WAN and Wireless Networks.• Implemented network security and prevented unauthorized access by setting up and configuring Fortinet FortiGate firewalls like 1800F, 2600F, and 3200F.• Deployed NAT and Web Filtering configurations on Palo Alto firewalls such as and series by setting up policies and objects.• Designed Cisco network using Nexus 9k, 7k, 5k, 2k series, understanding of Nexus hardware and traffic flow between different modules.• Worked on F5 Big-IP configuration for local site and server load balancing using F5 LTM module.• Set up configurations for routers such as the 3925, 3845, 2811, and various models from the 2600 series, as well as Cisco switches like the 2960 and 3750.• Configured and troubleshoot wireless Network including Aruba Wireless controller, IAP, Clear pass and Policy Manager.• Experience in firewall technologies including Checkpoint, McAfee, and Juniper Net Screen, covering SRX 550, SRX 1600 series, as well as IPS/WAF technologies.• Designed, implemented, and managed SD-WAN solutions using Viptela technology to enhance network security posture and optimize performance across distributed environments.
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