Varunkumar Eraveni

Experience

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  Tata Consultancy Services

  Jul 2016 - Feb 2019

  Jr Network Engineer

  Supported financial and manufacturing clients on network design, implementation, and troubleshooting.Monitored network performance, documented procedures, and configured VLANs.Provided Helpdesk support, escalated tickets, and troubleshooted complex LAN/WAN issues.Extensive experience with Cisco devices (switches, routers) and routing protocols (EIGRP, OSPF, BGP).Implemented network technologies including VSS, HSRP, STP, VTP, and BGP attributes.Experience with cabling, racking, and basic network administration tasks. Show less

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  Charter Communications

  Mar 2019 - Dec 2020

  Network Engineer

  Designed, deployed, and managed complex network infrastructure for enterprise environments (Branch, Campus, Data Center)Supported critical services like AWS & migrated data centers with minimal downtimeImplemented secure network solutions (Cisco ASA Firewalls, VPNs, ACLs)Troubleshooted network connectivity using routing protocols (OSPF, BGP, EIGRP)Experience with Cisco switches (Catalyst 2950, 3550, 3750, 6500), routers (7200), and wireless (Aironet)

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  Wells Fargo

  Jan 2021 - Jun 2022

  Network Consultant

  Migrating legacy Cisco equipment to newer Nexus switches.Implementing and managing firewalls from various vendors (Palo Alto, Juniper).Extensive experience with Cisco and Juniper network devices (routers, switches, firewalls).Configuring and managing advanced routing protocols (OSPF, BGP, MPLS).Deploying SD-WAN solutions (Silver Peak, Viptela, Versa, Meraki).Load balancing using F5 BigIP (LTM, GTM, iRules, scripting).Securing networks with access control lists (ACLs) and intrusion detection/prevention (IDS/IPS).Experience with AWS cloud security.Maintaining and troubleshooting a large-scale network environment (500+ devices). Show less

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  Federal Reserve Bank of Chicago

  Jul 2022 - now

  Network Security Engineer

  This is a highly technical role responsible for the design, implementation, configuration, maintenance, and troubleshooting of an organization's network security and infrastructure. Configuring RIP, OSPF, and Static routing on Juniper M and MX series Routers. Responsible for all routing, switching, VPN, network security, and server load balancing. Using PBR with Route Maps for route manipulation/filtering. Troubleshooting routing issues like suboptimal routing and asymmetric routing Implemented various EX, SRX & J series Juniper devices Migrated SAP based applications from old Cisco ACE load balancers to new VMware NSX edges Conducted a POC on SilverPeak, Versa and Viptella SD-WAN solution as a team and worked on evaluating the solutions. Have created a lot of site-to-site IPSEC VPN tunnel with Checkpoint, Juniper NetScreen firewalls, and Cisco PIX/ASA firewalls. Completed a project to update the patch HFA50 across all the firewalls to overcome the bugs in the existing version of R65. Setup and configure various F5 models: BIG-IP i4000 series, BIG-IP i2000 series, BIG-IP i5000 series, BIG-IP i7000 series / 1RU, VIPRION 2400 Chassis and VIPRION 4800 Chassis in production and non-production environments. Show less