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Sr. Network Engineer Resume Example

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SR. NETWORK ENGINEER
Professional Summary

Successful Senior Network Engineer accomplished in managing enterprise-wide networks for large-scale operations. Plan, implement and continuously improve infrastructure and controls to stay on top of changing operational and security demands. Expert in disaster recovery and business continuity planning. Diversely-skilled Senior Network Engineer with 7 years installing and maintaining secure, efficient networking architectures. Deeply knowledgeable in every stage of network installation, upgrade, optimization and management. Skilled at integrating emerging technologies such as ACI. Seasoned expert at guiding network and personnel performance to boost department-wide contributions.

Skills
  • Firewall management
  • Internet Protocol Suite (TPC/IP)
  • Data center architecture
  • SolarWinds support
  • Intrusion mitigation
  • Wireless communication design
  • Subnetting expertise
  • IP address structure
  • Network security systems
  • DNS implementation
  • VLAN aggregation
  • QoS/CoS expertise
  • Cisco switching expertise
  • Security architecture and technologies
  • OSPF routing
  • Verbal and written communication
  • Network device monitoring
  • System integration
  • Proactive and team player
  • IP Services
  • BGP message types
Work History
04/2019 to CurrentSr. Network EngineerCognizant Technology Solutions | Chicago, IL
  • Involved in Configuring Cisco routers and switch administration, familiar with enterprise level Cisco Routers 2800 Series, and Cisco Catalyst series switches like 6500, 3750, and 4500, 2960, 3850.
  • Managing and Configuring Cisco Switches, ASA Firewalls and Pal Alto's , Forcepoint independently.
  • Configuring and install hardware and software required to conduct network penetration testing.
  • Experience in infrastructure strategies, hardware/software, security and networking products.
  • Experience with configuring, supporting and troubleshooting security products including Cisco, IDS, IPS, PA solutions and others.
  • Create self-signed certificate and deployed on load balancer.
  • Provisioned VPN Tunnels, Site to Site VPN for Clients to use Drop Copy and SFTP.
  • Provisioned IP's in Pal Alto, and ASA for SFTP and FTP for Clients.
  • Designed highly redundant and fault tolerance for the financial industry clients.
  • Provide on call support and created documentation on the issues solved.
  • IOS upgrade and router hardening for 2600, 3600, 7200 routers and 6500, 2900 and 3500 series of switches.
  • Investigated and resolved network issue using troubleshooting skills and network sniffers.
  • Assisted with establishing Network Operations center (NOC) to proactively monitor the network resulted in better SLA and network performance.
  • Maintained and supported daily, weekly, and monthly backups for servers and network configurations.
  • Hardware migration from Citrix Netscaler NS 7000 to MPX 9500.
  • Involved in setting up new Citrix Netscaler SDX 15000.
  • Maintained ACI infrastructure, Controlling the ACI through APIC and Creating EPGs, Bridge Domains, Tenants.
  • Experience in the PCI remediation project, which includes Switches, Routers and Firewalls.
  • Mainted EOS/EOL and Rem.
  • Managed network monitoring tools like Solarwinds and Splunk.
  • Diagnose and solve Frame relay /T1 lines, CSU/DSU and routers connectivity problems.
  • Configuring and managing network traffic using 3Com SNMP and access list.
  • Configured site-to-site & remote access VPNs on PIXs, VPN concentration, IOS routers and ASAs.
  • Experience in managing and maintaining Nexus 5000 and 7000 series.
  • Implemented and administered websense Web Security Gateway for web content filtering and DLP.
  • Implementation of checkpoint Firewall 4.1 to protect and authenticate local-net and DMZ.
  • Defined policies, NAT and anti-spoofing for internal, external networks as well as Internet gateways.
  • Configured multi-homed BGP with HSRP, to provide full fault tolerance and automatic failover.
  • Capabilities for several clients.
  • Provide Network Operations support using Peoplesoft CRM.
  • Designed and configured HSRP for redundancy.
  • Used Fabric Extenders like 2248TP GE series for the top of the rack solution and used 5548P for the end of the row solution.
  • Worked on physical site to gather the information of all network devices for device onboard program.
  • Configuring and troubleshooting different protocols such as Static routing, VLAN routing, EIGRP and Frame relay.
  • Upgraded IOS on various Cisco Routers and Switches.
  • Hands on experience on the LTM Products like 6800 with 10.x and 3600 with 4.x with TMOS versions.
  • Identify additional Network operations requirement and improve opportunity with the help of senior engineers.
  • Accountable for the performance of direct reports on a daily basis.
  • Assisted senior engineers in testing and troubleshooting when system failure occurs.
  • Maintained IPAM, DNS and DHCP for the network.
  • Hands on experience with Infoblox, and windows DNS and DHCP.
  • Worked with System Engineers to Migrate the VMs to Nutanix Host.
  • Hands on Experience with VOIP.
  • Configured Voice Gateways ISR 4321 and worked with ISP and configured SIP Trunks.
  • Maintained CUCM (V11.5 and 12.5) for End USers, Configured VOIP end devices, and Jabber Services.
  • Vulnerability remediation on the network devices.
  • Maintaining devices with their EOS/EOL and CIsco Renewals.
05/2017 to 04/2019Network EngineerUnited Airlines Inc. | Chicago, Illinois
  • Worked on different networking concept and routing protocols like BGP, EIGRP, OSPF, and other LAN/WAN technologies.
08/2015 to 12/2017Network EngineerAccertive Health | Chicago, IL
  • Designed, built, and implemented various solutions on Check Point Firewalls, F5 Load balancers and F5 Global Traffic Managers.
  • Involved in design and implementation of Data Center Migration, worked on implementation strategies for the expansion of the MPLS VPN networks.
  • Responsible for remote sites connectivity via VPN/Site to Site/IPsec, GRE, DMVPN.
  • Implemented and supported SSL VPN network tunnels on F5 APMs.
  • Worked on different networking concept and routing protocols like BGP, EIGRP, OSPF, and other LAN/WAN technologies.
  • Proficient with IP access list, Cisco Discovery Protocol(CDP), Static Routing, Network Address Translation(NAT), VLAN Trunking Protocol(VTP) and HSRP.
  • Replaced 6500 from access layer and installed 3000 Series Switches.
  • Worked on 2600, 3500, 7613 Cisco Routers and 4500 and 6500 series Cisco Switches.
  • Configured and managed Cisco access layer routers and Switches and carried out route redistribution and manipulated route updates using distribute lists, route-maps and administrative distance and offset-lists.
  • Co-ordinate with Data Network and Security team and come up with possible solutions.
  • Work on physical site inventory verifications, gather information of various Cisco Networking devices and security devices to develop Run bool and Spec book.
  • Upgraded IOS on various Cisco Routers and Switches.
  • Perform upgrades on existing networks equipment to resolve various network problems.
  • Designed and configured HSRP for redundancy.
  • Experience in troubleshooting VLAN, STP (Spanning Tree Protocol) and Switch Trunk and IP subnet issues.
  • Designed DMVPN topologies.
  • Mointored Datacenters and web traffic is filtered through Zscaler service.
  • Implement VLAN's and access list (ACL) and troubleshoot IP addressing issue and Updates IOS images and other hardware installation.
  • Provisioning and troubleshooting Ethernet services, Gigabit networks and Connectivity issues with WAN types (Frame relay).
12/2013 to 08/2015Network EngineerChicago Tribune Company | Chicago, IL
  • Created Virtual IP addresses.
  • Experience performing implementations/ cut-overs.
  • Verification of router installation and circuit connectivity to new non-production router.
  • After a 24 hour period to allowed BGP convergence; cut-over existing LAN to new router.
  • Proficient in Visio.
  • Configured BGP Statements for route summarization and establishing neighbor relationships.
  • Site Type 3 and above.
  • Worked on a rDNS project which involved working on Load Balancers (F5 and A10), Arista Switches, Nexus Switches, Cisco ASR.
  • Utilized iBGP using standardized configuration.
  • Must be able to troubleshoot any BGP issues between Customer Edge- and Provider Edge.
  • (Or escalate issue to Service Provider).
  • Multilink Configuration- Basic config and troubleshooting of Multilink WAN topologies using bundled T1 circuits.
  • Helped with migration from KEMP to A10 load balancers.
  • Created standard operating procedures (SOP) for the A10 load balancers and network monitors.
  • Extensive Knowledge on the implementation of Cisco ASA 5500 series and CheckPoint R 75 firewalls.
  • Ethernet Configuration- Knowledge of WAN connection from Customer Edge to Provider Edge.
  • 802.1q, encapsulation, speed, duplex, BGP-Peering, and troubleshooting.
  • Ability to detect errors (Duplex Mismatnown Protocol Drops, VLAN mismatch, cyclic redundancy check).
  • People Skills and basic understanding of office etiquette are most important.
  • Worked on different networking concept and routing protocols like BGP, EIGRP, OSPF, and other LAN/WAN technologies.
  • Proficient with IP access list, Cisco Discovery Protocol(CDP), Static Routing, Network Address Translation(NAT), VLAN Trunking Protocol(VTP) and HSRP.
  • Replaced 6500 from access layer and installed 3000 Series Switches.
  • Worked on 2600, 3500, 7613 Cisco Routers and 4500 and 6500 series Cisco Switches.
  • Configured and managed Cisco access layer routers and Switches and carried out route redistribution and manipulated route updates using distribute lists, route-maps and administrative distance and offset-lists.
  • Co-ordinate with Data Network and Security team and come up with possible solutions.
  • Work on physical site inventory verifications, gather information of various Cisco Networking devices and security devices to develop Run bool and Spec book.
  • Upgraded IOS on various Cisco Routers and Switches.
  • Perform upgrades on existing networks equipment to resolve various network problems.
Education
12/2015Associate of Arts | General StudiesWilbur Wright College, Chicago
Affiliations
CCNP - IN PROGRESS
Additional Information
  • Experience with Citrix NetScaler. Proficient in installing, configuring and Troubleshooting Cisco Nexus (9000,7000, 5000, 2000, 3000) series Switches, Cisco Routers (7200, 1700, 2601, ASR and ISR) and Cisco Catalyst (2960, 3560, 3750 and 6500 series and 9300 Series). Cisco Nexus (7000, 9300 and 9500), Cisco ACI Experience with monitoring tools including Wireshark, Microsoft Network Monitor, Cisco Network Assistant and Solar Winds. Expert in configuring, implementing and troubleshooting DNS, DHCP, and FTP. Experience with installing, configuring and deploying firewalls. Monitor, identify, report and mitigate security weakness as well as perform risk assessments for clients. Experience with convert Checkpoint VPN rules over to the Cisco ASA solution. Migration with both Checkpoint and Cisco ASA VPN experience. Responsible for Checkpoint and Cisco ASA firewall administration across our global networks. Assist in testing, troubleshooting and resolution efforts when system failures occur and interface with network operation teams. Assist in the development, management and enforcement of the company's network security policy. Research and evaluate new networking technologies to improve existing infrastructures. Experience in deploying Wireless controllers, Wireless access points and Wireless Sniffers. Cisco VOIP experience with Gateways Cross train and provide backup to other Network Engineers. Goal-oriented individual with people management skills and strong leadership capabilities. Responsible leading the development and execution of a project independently and in a timely fashion. Implemented network diagrams using Microsoft Visio and Cisco Packet Tracer, and documented network deployments through the use of Cisco best practices. TECHNICAL SKILLS HARDWARE: Cisco Nexus (9300, 9500, 7000, 5000, 2000,3000) series Switches Cisco Routers (9300,7200, 1700, 2601 and 2800,4300,3750,3850,3650,2900,1900) and Cisco Catalyst (2960, 3560, 3750 3850, 4500 and 6500 series).
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Resume Overview

Companies Worked For:

  • Cognizant Technology Solutions
  • United Airlines Inc.
  • Accertive Health
  • Chicago Tribune Company

School Attended

  • Wilbur Wright College

Job Titles Held:

  • Sr. Network Engineer
  • Network Engineer

Degrees

  • 12/2015 Associate of Arts | General Studies

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