Summary
Overview
Work History
Education
Skills
Timeline
Generic

Tejaswini Mannem

Kingsville,TX

Summary

Dynamic Sr. Network Engineer with extensive experience at Amazon, excelling in configuring Cisco routers and switches. Proven track record in implementing robust network security and optimizing routing protocols. Adept at scripting automation and collaborating effectively with cross-functional teams to enhance network performance and reliability.

Overview

5
5
years of professional experience

Work History

Sr. Network Engineer

Amazon
Seattle, WA
11.2024 - Current
  • Extensive worked on BMC Remedy for creating the Change Requests CRQ's, Work Orders, Incident Management.
  • Implementing, configuring, and troubleshooting various routing protocols like RIP, EIGRP, OSPF, and BGP.
  • Performing network monitoring, providing analysis using various tools like Wire Shark, Solar winds, Solaris etc.
  • Configured ACLs in Cisco 5540 ASA firewall for Internet Access requests for servers, Protocol Handling, Object Grouping and NAT/PAT, ISE, NAC.
  • Configured ASA 5540 to ensure high-end security on the network with ACLs and Firewall.
  • Configured and deployed BIG-IP LTM 8900 for providing application redundancy and load balancing.
  • Implemented Quality of Service QOS, Policy Maps, Class-maps, Policy Routing in the network infrastructure throughout all the different sites.
  • Played responsible role for implementing, engineering, level 2 support of existing network technologies / services integration of new network technologies / services.
  • Worked with Cisco Layer 3 switches 3560, 3750, 4500, 6500 Cisco Nexus 5000 and 7000 in multi VLAN environment with the use of inter-VLAN routing, 802.1Q trunk, and ether channel.
  • Key contributions include troubleshooting of complex LAN /WAN/WLAN infrastructure that include routing protocols EIGRP, OSPF, BGP, RIPv2 HSRP.
  • Performed route filtering and route manipulation by applying distribute-lists, route-maps offset lists respectively.
  • Tested various BGP attributes like local preference, MED, Weight and replicated customer issues in the testing environment lab.
  • Designed WAN structure to prevent single point of failure in case of link failure.
  • Configured PVSTP for loop prevention and VTP for Inter-VLAN Routing.
  • Configured maintained IPSEC Site-to-Site VPN.
  • Experience working in Datacenter environment, configuration changes as per the needs of company.
  • Configuring, implementing and troubleshooting VLAN's, VTP, STP, Trunking, Ether channels.
  • Managed Plan of Record with PLMs/SE/Sales/Marketing and Interlock with Juniper's strategic customers, monitoring product lines of Juniper routing/switching/security portfolio MX, PTX, EX, SRX.
  • Deploying and decommission of VLANs on core ASR 9K, Nexus 7K, 5K and its downstream devices.
  • Experience configuring Virtual Device Context in Nexus 7k series switch.
  • Convert Branch WAN links from TDM circuits to MPLS and to convert encryption from IPsec/GRE to Get VPN.
  • Implemented and configured various Lucent dense-wave-division multiplexing products as well as high speed Ethernet over SONET multiplexors including the Wavestar 400G, 800G, 1.6T.
  • Troubleshoot Cisco Applications, network issues and custom products. Network: Cisco Catalyst 6K series, MDS9000 series.
  • Worked on F5 LTM, GTM series like 6400, 6800, 8800 and Radware for the corporate applications and their availability.
  • Completed the HSS study and draft on Performance Management PM counters and KPIs and Fault Management FM events and alarms for Synchrony financial NMTP.
  • Administered the Linux, Windows, OpenStack, NetScaler, and BigIP F5 devices that make up the company's multi-tiered service architecture.
  • Environment: BMC Remedy, Cisco ASA 5540, BIG-IP LTM 8900, QOS, Policy-maps, Class-maps, Nexus, Vlans, STP, RSTP, PVSTP, VTP, HSRP, EtherChannel, Ethernet over TDM, Ethernet over SONET, IPsec /GRE, Get VPN, BGP, OSPF, EIGRP, RIP, RIPv2 MPLS, ATM, PPP, HDLC. SNMP, TACACS, DNS, ISE, NAC, DHCP, Radius, Basics of WLA, Nexus 2K, 5K, 7K, NMTP, FM, PM.

Network Engineer

Citizens Bank
Jonston, RI
06.2024 - 10.2024
  • Responsible for entire LAN and WAN/WLAN maintenance and troubleshooting of the company network.
  • Involved in the Team of Data Center Operations to perform duties like administration and deployment of Cisco Routers and Switches according to the organization requirements.
  • Working configuration of new VLANs and extension of existing VLANs on/to the necessary equipment to have connectivity between two different data centers.
  • 24x7 on-call escalation support as part of the security operations team.
  • Working closely with Data center management to analyze the data center sites for cabling requirements of various network equipment.
  • Performed network administration tasks such as creation and management of VLANS, Port security, Trunking, RPVST, Inter-VLAN routing, and LAN security.
  • Configured Hyper-V LAN which decouples virtual networks from the physical network infrastructure, removing the constraints of VLAN and hierarchical IP address assignment from virtual machine provisioning.
  • Worked with ASA Firewall configuration and Participated in Migration of PIX to ASA for hardware devices.
  • Configured FWSM on cisco 7600 router to reduce costs and operational complexity while enabling organization to manage multiple firewalls from the same management platform.
  • Knowledge in implementing and configuring F5 Big-IP LTM-6400 load balancers.
  • Configured ASA 5520/5500to ensure high-end security on the network with ACLs and Firewall.
  • Worked with Cisco Catalyst 4500, 4900 switches and Cisco 2800, 3600, 3800, 7200 7600 series Routers.
  • Configured PVSTP for loop prevention and VTP for Inter-VLAN Routing.
  • Installed Cisco WAAS device 4451-X for acceleration of TCP-based applications, and Cisco's Wide Area File Services WAFS in a single appliance and to preserve and strengthening branch security.
  • Worked with Routing Protocols of EIGRP and BGP.
  • Involved in Network Designing, Routing, DNS, IP Subnetting, TCP/IP protocol.
  • Deployed Nexus 2000, 5000 and 7000 series switches.
  • Worked on commissioning and decommissioning of the MPLS circuits for various field offices POPs.
  • GRE tunnelling Site-to Site VPN configuration between other two sites in USA.
  • Implemented redundancy for Routers, Switches and Firewalls.
  • Manage Cisco Routers and troubleshoot layer1, layer2 and layer3 technologies for customer escalations.
  • Creating automated scripts using Python language and also manual testing to enhance hardware performance.
  • IP Allocation Maintenance for users and other needs throughout company.
  • Configured and managed OSPF redistribution and authentication with type 3 LSA filtering and to prevent LSA flooding and also configured OSPF over frame relay networks for NBMA and point to multipoint strategies.
  • Designing, configuring, implementing and troubleshooting LAN VLAN's, VTP, Spanning Tree STP, Trunking dot1q and ISL and Ether channel.
  • Implementing and managing traffic engineering on top of an existing Multiprotocol Label Switching MPLS network using Frame Relay and Open Shortest Path First OSPF.
  • Configuring and implementing F5 BIG-IP, LTM, GTM load balancers to maintain global and local traffic.
  • Implementing and troubleshooting on-call IPsec VPNs for various business lines and making sure everything is in place.
  • Implementing the necessary changes such as adding, moving and changing as per the requirements of business lines in a data center environment.
  • Implementation and configuration of F5 Big-IP LTM-6400 load balancers.
  • Worked in projects converting P2P circuits into MPLS circuits, commissioning and decommissioning of the MPLS circuits for branch offices.
  • Configuring and resolving various OSPF issues in an OSPF multi area environment.
  • Implemented, configured BGP WAN routing, converting OSPF routes to BGP OSPF in local routing.
  • Expertise in maintenance of layer2 switching tasks which advocate VLAN, VTP, STP, RSTP, PVST, RPVST, configuring of ether channel with LACP and PAGP along with troubleshooting of inter-VLAN routing.
  • Member of a team in planning, design, capacity management, and budget approvals for switching, Ethernet over SONET, Ethernet over DWDM, fiber network including spur closures, and other infrastructures.
  • Assisted in EPL, EVPL, ELINE And ELAN design and provisioning based on MPLS LDP, RSVP and TLDP.
  • Managed multi-domain/multi-platform networks comprised of 33 multi-platform server Solaris 11, Windows Server 2003, 2008, and 75 Windows-based clients XP, 7.
  • Experience with convert Checkpoint VPN rules over to the Cisco ASA solution. Migration with Cisco ASA VPN experience.
  • Developed the solutions approach SA, network management technical plan NMTP, and network validation test NMVT documents. Coordinated with development, test, and operations organizations resulting in a robust non-service impacting upgrade.
  • Led the network management validation testing to ensure NM functionalities.
  • Environment: Cisco ASA 5520, 5505, BIG-IP LTM 6400, Nexus, STP, RSTP, VTP, HSRP, Port-Channel, Ethernet over SONET, Ethernet over DWDM BGP, OSPF, EIGRP, PPP, HDLC. SNMP, DNS, DHCP, Hyper-V Networking, Checkpoint, RIP, Nexus 2K, 5K, 7K.s, EPL, EVPL, ELAN, NMTP, NMVT.

Jr. Network Engineer

Avanz Technologies
, India
05.2020 - 07.2022
  • Company Overview: India
  • Configured RIP and EIGRP on 2600, 2900 and 3600 series Cisco routers.
  • Implemented VTP and trunking protocols 802.1q and ISL on 3560, 3750 and 4500 series Cisco Catalyst switches.
  • Performed on-call support for installation and troubleshooting of the configuration issues.
  • Worked on installation, maintenance, and troubleshooting of LAN/WAN ISDN, Frame relay, NAT/PAT, DHCP, TCP/IP, Radius.
  • Configured Access List Standard, Extended, and Named to allow users all over the company to access different applications and blocking others.
  • Configured STP for loop prevention and VTP for Inter-VLAN Routing.
  • Performed maintenance and troubleshooting of connectivity problems using PING, and Trace route.
  • Provided Network and Security Architecture and Operations support services for Windows 2008 based web, application and database servers.
  • Provided Technical support for improvement, upgradation, and expansion of the existing network architecture.
  • Done troubleshooting of TCP/IP problems and connectivity issues in multi-protocol Ethernet environment.
  • Developed test scripts using Python and assorted proprietary software tools.
  • Worked on FCOE protocol to encapsulate the Fibre Channel frames over Ethernet networks.
  • Configuring and troubleshooting multi-customer ISP network environment.
  • Involved in network monitoring, alarm notification and acknowledgement.
  • Install and/or Migrate Checkpoint Security Hardware systems while upgrading to the latest Checkpoint Security Software version.
  • Utilized Solar wind tools to proactively troubleshoot Client issues.
  • Managing and maintaining Solaris. Troubleshoot and resolve technical uses issues.
  • Implementing new/changing existing data networks for various projects as per the requirement.
  • Troubleshooting complex networks layer 1, 2 frame relay, ATM, Point to Point, ISDN to layer 3 routing with MPLS, BGP, EIGRP, OSPF and RIP protocols technical issues.
  • India
  • Environment: RIP, EIGRP, TCP/IP, FCOE, MPLS, BGP, ACL, VTP, VLAN, Checkpoint.

Education

Master of Science - Computer And Information Sciences

Texas A&M University
Kingsville, TX
05-2024

Skills

  • Cisco routers
  • Juniper routers
  • Cisco switches
  • Avaya switches
  • Network Management Tools
  • VPN
  • Network Security Services
  • Routing Protocols
  • TCP/IP
  • Operating Systems
  • Microsoft Visio
  • Firewall Security
  • Scripting Automation

Timeline

Sr. Network Engineer

Amazon
11.2024 - Current

Network Engineer

Citizens Bank
06.2024 - 10.2024

Jr. Network Engineer

Avanz Technologies
05.2020 - 07.2022

Master of Science - Computer And Information Sciences

Texas A&M University

Similar Profiles

CREATE PROFILE