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Vidyasagar Nandipalli - Network Engineer

[email protected]

Location: Dallas, Texas, USA

Relocation: Yes

Visa: H1B

Vidyasagar Nandipalli Network Engineer +1 469-990-0676 [email protected] Dallas, TX Yes H1B Professional Summary: 9+ years of experience in Juniper Networking, Security which includes designing, Deployment and providing network support, installation, and analysis for a broad range of LAN / WAN protocols. Hands On experience Cisco IOS/IOS-XR/NX-OS & troubleshooting of routing protocols: MP-BGP, OSPF, LDP, EIGRP, RIP, BGP v4, MPLS. Experience on TCP/IP and troubleshooting Internet/Intranet connectivity. Having knowledge on switches, patch panels and connecting nodes to a network. Experience in Designing and deploying enterprise-wide Network Security and High Availability Solutions for ASA. Extensive work experience with Cisco Routers, Cisco Switches, Load Balancers and Firewalls. Experience with configuring Nexus 2000 Fabric Extender (FEX) which acts as a remote line card (module) for the Nexus 5000. Experience working with Cisco Nexus 2148 Fabric Extender and Nexus 7010, 5000 series to provide a Flexible Access Solution for a datacenter access architecture. Involved in troubleshooting of DNS, DHCP and other IP conflict problems. Configuring Virtual Chassis for Juniper switches EX-4200, Firewalls SRX-210 Responsible for Check Point (Secure Platform R70) and Cisco ASA firewall administrator across global networks. Experience in working with Cisco Nexus Switches and Virtual Port Channel configuration. Knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP, Ether channel, STP, RSTP and MST. Implementation of HSRP, VRRP for Default Gateway Redundancy. Experience in testing Cisco routers and switches in the laboratory and deploying them on site production. Worked extensively in Configuring, Monitoring and Troubleshooting Cisco's ASA 5500/PIX security appliance, Failover DMZ zoning & configuring VLANs/routing/NAT with the firewalls as per the design. Worked extensively on Cisco Firewalls, Cisco PIX (506E/515E/525/) & ASA 5500(5510/5540) Series. Knowledge in preparing Technical Documentation and presentations using Microsoft VISIO/ Office. Worked on MPLS while ensuring secure networking, improving the network performance by prioritizing network traffic and allocating bandwidth according to usage and service requirements. Worked on Multicast to use the bandwidth more effectively while reducing the load on the sender. Knowledge of WAN Optimization Technology, Riverbed. Also worked with the physical server migration to AWS data center Involved in designing and implementation of AWS network and connectivity b/w physical and AWS DC. Assisted in designing and programming object-oriented databases with Python and other languages. Worked with Automation script with Python module like Chef & Ansible. Managed relational database applications with UI designing services and Python languages. Developed a python script, which will parse all trace files and calculate throughput, latency and drop rate. Developed and implemented a web crawler program in Python that gathers data from social networking sites. Configuring Cisco Wireless Controllers and AP s. Configuring Cisco WAAS. Configuring the Network Admission Control (NAC). Excellent customer management/resolution, problem solving, debugging skills and capable of quickly learning, effectively analyzes results and implement and delivering solutions as an individual and as part of a team. Hands on Experience testing iRules using Browser (IE), HTTP watch Technical Skills: Networking Technologies LAN/WAN Architecture, TCP/IP, Frame Relay, VPN, VLAN, VTP, NAT, PAT, STP, RSTP, PVST, MSTP Networking Hardware Cisco Switches, Cisco Routers, ASA/Pix firewalls, VMware, IronPort RouEng Protocols OSPF, IGRP, EIGRP, RIP, MPLS, IS-IS, BGP, Multicasting Security Technologies PAP, CHAP, Cisco PIX, Blue Coat Network Monitoring Cisco Works 2000, Wire Shark, HRPing OperaEng Systems Windows 7, Vista, XP, 2000, LINUX, Cisco IOS, IOS XR Routers CISCO 2600, 2800,3600,3800,7200, Juniper M & T Series, Cisco CRS-1, CRS -3, GSR Load Balancers Cisco CSM, F5 Networks (BIG-IP) Capacity & performance IXIA, Spirent, Cisco works Switches CISCO 2900, 3500,4500,5000,6500, Nexus 7k,5k,2k Programming Languages C, C++, Perl, VB Script, Power Shell, Python, SQL SimulaEon Tools Qualnet Developer, OPNET IT GURU, OPNET Modeler, Cadence Firewalls juniper net screen (500/5200), Juniper SRX (650/3600), Pix (525/535), ASA (5520/5550/5580), McAfee Web Gateway, Palo Alto, Checkpoint AAA Architecture TACACS+, RADIUS, Cisco ACS Features & Services IOS and Features, HSRP, GLBP, IPAM IRDP, NAT, SNMP, SYSLOG, NTP, DHCP, CDP, DNS, TFTP and FTP Management, Open Stack, IVR s, HLD and LLD documents, Dell equal logics Professional Experience: Charter Communications, CO June 2022- June 2023 Network Engineer Responsibilities: Worked as a WAN network engineer and also firewalls. Worked as a part of team in deployment of CISCO ACI Spine and Leaf architecture using 9446PQ. Implemented Cisco ACI L4-L7 service graph to include, CISCO ASA ad F5 Integration as well as L2 and L3 out extension using contracts. Worked on implementing the best routing and switching practices in the network infrastructure to improve security and efficiency. Worked on Routers, Switches, Firewalls, and Load Balancers in the infrastructure. Working towards automation and also deploying network cloud technologies. Experience working on Cisco ASR, CSR, Nexus, Load Balancers, router upgrades. Experience Sizing up SD WAN infrastructure and deploying wedges in the infrastructure. Sizing up internal connectivity to the network using technologies like ospf, eigrp and the external network using BGP routing protocol, MPLS network. Have video infrastructure to support and have worked on deploying multicast network. Have experience managing F5 devices using BIG-IQ to manage all the F5 devices. Have done SSL cert updates. Used SolarWinds to monitor devices across the sites for any alerts/alarms. Collaborated with CISCO vendor team for any required support. Manage vendor interaction and activities as it relates to new service implementation. Palo Alto, Juniper SRX and Cisco ASA firewalls were managed, configured, and migrated. Experiencing working on nexus 7k, catalyst 6500 devices and sizing up VPC, VSS, Port-Channel, Ether-channel, Bundle-Ethernet Receiving tickets via Remedy and resolving the ticket in estimated time frame. And we used to update ticket In Remedy if we need more information. Worked on F5 deployments both in datacenter, virtual and cloud deployments. Have worked on configuring LTM , GTM , APM and ASM modules. Hands on experience on Azure laaS. Responsible for design and build Azure foundation setup. Having knowledge on design Azure Kubernetes platform. Migration of Cisco ASR IOS XR, IOS XE devices to Nexus 9k devices. CHI St. Luke s Health, TX June 2021-June 2022 Network Engineer Responsibilities: Implementation and maintenance of LAN/WAN. Implement and configured HSRP on core switching and also for VPN redundancy, HSRP on different location of office on the switched network and managed the multi-layer switched network. Testing of Multicast routing in Data Centre Environment. Troubleshoot and worked with respective vendor about the security issues related to CISCO ASA, Checkpoint and Juniper Firewalls. Performed new additions of VIPs, Pools, Virtual Servers, and Monitors to the F5 Big IP LTM load balancer. Worked on Remedy to receive tickets and resolve tickets in timely manner and update the status. Review/modify/create/finalize design documents, plans, and configurations day-to-day operations and support of the dual site Orion SolarWinds performance monitoring environment. Coordinated with internal technical groups for delivery of telecommunications and network infrastructure. Implementation of switching protocols like Spanning tree Protocol STP in the network, VTP, VLANs. Testing Layer 2 and Layer 3 protocols like OSPF, BGP, MPLS, VRRP and VPLS. Testing for all phases like Unit, Integration, IOT, Feature, Performances and Services. Supported on CISCO Nexus 5000 and Nexus 7000 Series Switch fabric links. Professional Experience: Anthem, Richmond, VA Sep 2019 June2021 Network Engineer Responsibilities: Configured Cisco 6500 VSS in Distribution layer of the Data center network. Configuration and Administration of Cisco and Juniper Routers and Switches Performed Configuration on ASR 9K Pairs includes HSRP, Bundle Ethernet Configuration, Assigning DHCP profiles. Worked with Nexus 7010, 5548, 5596, 2148, 2248 devices. Deploying and decommissioning of VLANs on core ASR 9K, Nexus 9K, 7K, 5K and its downstream devices and also configure 2k, 3k, 7k series Routers. Configured VPC (Virtual Port Channel), VDC (Virtual Device Context) in Nexus 7010/7018 Created documents for various platforms including Nexus 7k, ASR9k, and ASR1k enabling successful deployment of new devices on the network. Configured Nexus 2000 Fabric Extender (FEX) which acts as a remote line card (module) for the Nexus 5000 to connect servers and storage devices. Setup MPLS Layer 3 VPN cloud in data center and also working with BGP WAN towards customer. Work with Load Balancing team to build connectivity to production and disaster recovery servers through F5 Big IP LTM load balancers. Used to troubleshoot Juniper EX series switches and routers. Migrated to Juniper EX series switches from Cisco 3500 series and 6500 series switches. Experience with moving data centers from one location to another location, from 6500 based data center to Nexus based data center. Network Redesign for Small Office/Campus Locations. This includes changes to both the voice and data environment. Network security includes NAT/PAT, ACL, and ASA/SRX Firewalls. Good knowledge with the technologies VPN, WLAN and Multicast. Well Experienced in configuring protocols HSRP, GLBP, ICMP, IGMP, PPP, PAP, CHAP, and SNMP. Work with Load Balancing team to build connectivity to production and disaster recovery servers through F5 Big IP LTM load balancers. Installation and Configuration of Cisco Catalyst switches 6500, 3750 & 3550 series and configured routing protocol OSPF, EIGRP, BGP with Access Control lists implemented as per Network Design Document and followed the change process as per IT policy It also includes the configuration of port channel between core switches and server distribution switches. Implement changes on switches, routers, load balancers (F5 and CSS), wireless devices per engineer s instructions and troubleshooting any related issues. Experience with communicating with different with different customers, IT teams in gathering the details for the project. Switching tasks include VTP, ISL/ 802.1q, IP Sec and GRE Tunneling, VLANs, Ether Channel, Trunking, Port Security, STP and RSTP. Installing and configuring DNS, DHCP servers. Replace branch hardware with new 3900 routers and 2960 switches. Conversions to BGP WAN routing. Which will be to convert WAN routing from OSPF to BGP (OSPF is used for local routing only) which involves new wan links. Convert Branch WAN links from TDM circuits to MPLS and convert encryption from IP Sec/GRE to Get VPN. Responsible for layer 2 securities which was implemented using a dedicated VLAN ID for all trunk ports, the user ports to non-trunking, deployed port security, when possible, for user ports Involved in configuring Juniper SSG-140 and Cisco ASA firewall. Also worked with the physical server migration to AWS data center Involved in designing and implementation of AWS network and connectivity b/w physical and AWS DC Worked with the Python 2 & 3 version. Assisted in designing and programming object-oriented databases with Python and other languages. Worked with Automation script with Python module like Chef & Ansible. Managed relational database applications with UI designing services and Python languages. Developed a python script, which will parse all trace files and calculate throughput, latency and drop rate. Developed and implemented a web crawler program in Python that gathers data from social networking sites. Enabled STP sack migration (BPDU Guard, Root Guard), using MD5 authentication for VTP, disabling all unused ports and in unused VLAN and ensuring DHCP a sack prevention where needed. Verizon, Richmond, VA Jul 2017 Aug 2019 Network Engineer Responsibilities: Configure / Troubleshoot CISCO 12000, 7500, 3800 series routers and 3560 series switches for LAN/WAN connectivity. Involved in design and implementation of Data Center Migration, worked on implementation strategies for the expansion of the MPLS VPN networks. Experience in Configuring, upgrading, and verifying NX-OS operation system with OSPF, BGP Actively involved in Switching technology Administration including creating and managing VLANS, Port security- 802.1x, Trucking 802.1Q, RPVST+, Inter-VLAN routing, and LAN security on Cisco Catalyst Switches 4507R+E, 6509-E and Cisco Nexus Switches 2232, 5596, 7009. Troubleshooting of complex LAN/WAN infrastructure that include routing protocols EIGRP, OSPF & BGP, MPLS Deploying PIM Sparse-mode/Dense-mode multicasting in Campus locations. Serve as part of a team of network engineers responsible for base wide network upgrade from Cisco Layer 3 Catalyst switches to Juniper Layer 3 EX4200 & EX3200 switches. Design, implement and administer IPv4 enterprise network infrastructure utilizing Juniper routers like Juniper MX80, MX 480 and MX960. Design and implement Catalyst/ASA Firewall Service Module for various LAN s. Involved in Configuration of Access lists (ACL) on checkpoint firewall for the proper network routing for the B2B network connectivity. Experienced in handling and installing Palo Alto Firewalls Serve as part of a team of network engineers responsible for base wide network upgrade from Cisco Layer 3 Catalyst switches to Juniper Layer 3 EX4200 & EX3200 switches. Provided Layer-3 redundancy by implementing HSRP and GLBP for High availability. Implementation and Configuration (Profiles, I Rules) of F5 Big-IP LTM-6400 load balancers. Implemented Access lists and policy mapping on Juniper router installed in each branch across all the states. Worked on configuration commissioning and upgrading of the MPLS circuits for various branch offices. FTD, Downers Grove, IL April 2016 June 2017 Network Engineer Responsibilities: Involved in implementation of Trunking using Dot1Q, and ISL on Cisco Catalyst Switches. Involved in Local Area Network (LAN) design, troubleshooting, and maintenance as per company s requirements. Worked with snipping tools like Ethereal to analyze the network problems. Maintenance and troubleshooting of network connectivity problems using PING, Trace Route. Performed replacements of failed hardware and upgraded software. Configured VLANS to isolate different departments. Troubleshoot issues related to VLAN, VLAN Trunking, HSRP failovers, related issues. Configured IPSEC VPN on SRX series firewalls. Used TFTP server to backup Cisco configuration files. Network layer tasks included configuration of IP Addressing using FLSM, VLSM for all applications and servers throughout the company. Performed scheduled Virus Checks & Updates on all Servers & Desktops. Implementing Routing and Switching using the following protocols: IS-IS OSPF, BGP on Juniper M series routers. Design, installation and troubleshooting networks with hands-on experience with OSPF, ISIS, BGP, VPLS, Multicast, VPN, MPLS, & Traffic engineering. Configured STP for loop prevention on Cisco Catalyst Switches. Configured VTP to manage VLAN database throughout the network for Inter-VLAN Routing. Worked in Inter-VLAN routing, redistribution, access-lists, and dynamic routing. Involved in configuring and implementing of Composite Network models consists of Cisco 3750, 2620 and 1900 series routers and Cisco 2950, 3500 Series switches. Implemented various Switch Port Security features as per the company s policy. Configured RIP, and EIGRP on 2901 and 3925 Cisco routers. Provided technical support for expansion of the existing network architecture to incorporate new users. Genpact, Hyderabad April 2014- June 2015 Network Engineer Responsibilities: Worked closely and collaborated with the leadership team to improve wired/wireless network infrastructure, resulting in improved uptime 99.99%. Drove operational improvements, increasing network efficiency by 11%. Reviewed, audited, and onboarded 50+ externa vendors into the network to expertly handle and streamline billions of concurrent network requests. Provided first and second level escalation support for network, telecommunications, security issues, employing high quality services. Configured Cisco Routers for OSPF, IGRP, RIPv2, EIGRP, Static and default route. Worked on HSRP for hop redundancy and load balancing. Routing protocols OSPF, RIP & BGP Implementation of name resolution using WINS & DNS in TCP/IP environment Configured FTP server for inside/outside users & vendors. Experience in Cisco switches and routers: Physical cabling, IP addressing, Wide Area Network configurations. Responsible for Internal and external accounts and, managing LAN/WAN and checking for Security Settings of the networking devices (Cisco Router, switches) co-coordinating with the system/Network administrator during any major changes and implementation Yell Adworks, Hyderabad June 2012- April 2014 Network Engineer Responsibilities: Setting up and managing Local and Wide Area Networks to maintain maximum network uptime. Handling Networking and Databases Administration with technical expertise in implementation, operation and support functions using IT as a tool. Monitoring network maintenance activities and ensure prompt troubleshooting of network problems. Managing IP allocations. Education: Masters in information technology management, KY. Bachelors in computer science from SRM University in India. Keywords: cprogramm cplusplus user interface active directory information technology ffive Colorado Idaho Illinois Kentucky South Dakota Texas Virginia