Durga Pavan Kumar Potnuri
Senior Network Security Engineer
- Role
- Senior Network Security Engineer at Granite Telecommunications
- Location
- Hoboken, NJ, US
- LinkedIn followers
- 500 followers
About Durga Pavan Kumar Potnuri
5G / LTE Network Engineer with 7+ years of experience in E2E packet-core, VoIP, and security testing, specializing in 5G SA/NSA, LTE EPC call flows, IMS services, and protocol-level troubleshooting across Device RAN, Core,Service platforms. Strong expertise in VoLTE, VoWiFi, SIP signaling, RTP media flows, NAT/Proxy behavior, firewall traversal, and packet analysis. Proven ability to analyze complex call flows, identify protocol defects, validate service behavior, and collaborate across multicultural engineering teams. Hands-on experience with automation, real UE testing, traffic simulation, and detailed root-cause analysis.
Experience
Senior Network Security Engineer
Dec 2024 — Present · Orlando, FL, US
Configured, and Maintained Firewalls policies on Cisco NGFW 5500 series and Palo Alto including Security, NAT policy definitions; application filtering; Regional rules; URL filtering, Data filtering, file blocking, User based policies.• Knowledge of troubleshooting, implementing, optimizing, and testing static and dynamic routing protocols such as EIGRP, OSPF, and BGP, ability to interpret and resolve complex route table problems.• Working experience on the Arista 7150S series, 7160 series, and 7260QX series switches; 7508R routers.• Testing JUNOS images on Juniper MX and T series router platforms, covering various protocols and technologies, such as OSPF, BGP, LDP, MPLS, Layer3 VPNs, and VPLS.• Configured the ASM and WAF Virtual server on the BIG-IP LTM for added performance and security.• Supporting EIGRP and BGP based on the network by resolving level 2 and 3 problems of internal teams and external customers of all locations.• Strong experience in Network security using Juniper SRX, ASA Firewall, Checkpoint, Palo Alto, Cisco IDS/IPS, and IPSEC/SSL VPN.• Support over two hundred Cisco Firewalls Cisco ASA 5500, Series 5500 - X, and Cisco Next-Generation Firepower 4100 Series security appliances in standalone and high availability configurations.• Performed new additions of VIPs, Pools, Virtual Servers, and Monitors to the F5 Big IP LTM load Balancer.• Migrated from Cisco ASA to Palo Alto firewalls Integrated Active Directory/LDAP with Palo Alto Next-Generation Firewalls.
Education
St. Francis College
Master's degree, IT and Management
Sasi Institute of Technology & Engineering
Bachelor of Technology - BTech, Petroleum Engineering
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