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Sr. Network Engineer Resume

3.00 Rating

Chicago, IL

SUMMARY

  • Process Reengineering Organizational Redesi Performance Improvement. Strategic planning....Project Management....Operational Efficiency….Cost Savings....Team Leadership....Customer Satisfaction
  • Service - driven IT Professional with 8+ years of experience in network administration, system maintenance, Technical Configuration,troubleshooting, team building, and infrastructure planning, reputation for creative problem solving and effectiveness in resource management and cost control, broad experience with diverse enterprise and network systems and remote administration.

TECHNICAL SKILLS

Cisco Switches: Cisco Switches Catalyst 2800, 2900, 3750 and its stacking, 3500, 4000, 4500, 6500, Nexus 9K/7K/ 5K/ 2K - vDC, vPC, VRF,OTV.

Cisco Routers: ISRs/ ASRs/ VXRs/ GSRs family (1700, 1800, 2500, 2600, 3600, 3700, 4000, 7200 & 7600.

Juniper series: EX3300, EX3400, EX4300, EX4600, SRX, QFX5100, QFX10002, MX Series edge routers, PTX,ACX routers

Protocols: TCP,IP,OSPF, BGP, RIP, EIGRP, IGRP, IS-IS, IPv4/ IPv6, VTP, STP, PVST+, RSTP, MSTP, HSRP, GLBP, TCP/ IP, SCCP,PPP, HDLC, FTP, Telnet, SNMP, DHCP, DNSSMTP, NTP, 802.1q,802.1D&802.1W, BPDU guard, PVST, RPVST+.

Network security: DMVPN,IPsec,L2TP,IKE,ISAKMP,HTTP,HTTPS,ACL,AAA, 2FA, Dell secure works, Defense center IPS/IDS, Source fire 3D3500.

Firewalls: Cisco ASA 5585-X/ 5520, Site-site VPN, Web VPN, NAT, Juniper Net screen SSG/ SRX, Blue coat, Check point, Sonic wall.

Network automation: XML API, NETCONF, YAML, JSON, XML, SLAX, JSD&MGD based automation, Data serialization, Cisco cloud.

Voice: SIP, POTS,INMP,CUCM 8.5,CUC,CER,PBX,VOIP,MGCP&H323 Voice gateways, Voice mail, Call accounting, Voice recording, IMPACT.

Network Monitoring: PRTG,HP Network Node Manager, Solar Winds, wire shark, Splunk, Net XMS, Microsoft Network monitor, Omni, Netscout.

Wireless devices: Cisco 5508, 4404 and WISM wireless controllers, Airo net access points, Aruba network wireless 3600&650 controllers, WCS.

Load Balancers: F5 Big IP LTMs, GTMs, Big IP Virtual editionv12&v13 Riverbed Stingray, I Rules, Custom checks, Cisco ACE/ CSS LB, Open API.

Server: Windows server 2003/2008 R2/2012 Active directory, VMware, V Sphere/ ESXi 5.x&6.x,Hyper-V,Citrix,Oracle VM virtual box.

Documentation: Visio, Slack, Lucid charts, Web sequence diagrams, Jira.

PROFESSIONAL EXPERIENCE

Confidential, Chicago, IL

Sr. Network Engineer

Responsibilities:

  • Built Data Center & Automate Network Devices -Configured/Automate 1000+ Juniper EX,QFX series network switches with JUNOS as open platform for data center using Ansible and Python.
  • Configure and roll-out devices such as routers and switches from Cisco Systems (6500 Series/Nexus 5000 Series routers/Nexus 3000 Series switches/3500 Series switches/4500M Series switches), Juniper Networks (MX80/MX240 Series routers and SRX Series firewalls), at various locations to expand global infrastructure.
  • Implement and configure Cisco, Juniper and Aruba network infrastructure solutions for branches, corporate offices and data centers utilizing Cisco ASR,2900 and 3900, Juniper SRX 345, MX series routers for WAN routing, Cisco 4500X,6500,Nexus 7k, Juniper 9208, EX4300.EX3300,EX3400 switches for access and distribution level switching.
  • Configure/troubleshoots for VPC/CLAG/MLAG, LACP/L2 ECMP, VLAN, VTP, inter VLAN routing, redistribution and authentication issues.
  • Building automation tools for nexus 9k, 3k and juniper QFX5200 environment.
  • Network management via SNMP/XML/Net configuration.
  • Design, deployment, and configuration of servers and complex firewall environments, Collection and documentation of IT related data, Monitoring system deployment and configuration, System management and contingency planning.
  • Configured VLANS, HSRP, VRRP, LACP on the Cisco 6500 and nexus 7010/9k
  • Work across different project management and deployed team to generate datacenter build/implementation plans included method of procedure (MOP) and bill of Materials (BOM)
  • Responsible for the LAN refreshment like migrating old EOL hardware to new Juniper and Cisco infrastructure in collapsed core designs
  • Collecting bandwidth and latency results from the monitoring tools before and after upgrade.
  • BGP/OSPF between the core switch and WAN routers was used and control routing via prefix lists.
  • Lead for the site separation project when new company Alight split from the AON network, LAN and WAN cutover, Migrated 12 floor buildings without downtime for the users, printers, phones, cameras and security devices.
  • VOIP projects involving upgrading existing cores to redundant 4500x VSS, New juniper SRX345 firewalls.
  • On team responsible for evaluating, designing, implementing and optimizing Catalyst 6500/Firewall Services Module retirement with Nexus 5000/9000 Series switches, ASR 1000 Series routers, and ASA 5585X Next Generation firewalls.
  • Project includes migration of pre-8.3 firewall rules to post-9.1 rules for ACE's, NAT, and high-availability to cluster-mode.
  • Designed and implemented 10Gbps multi-mode trunks in the datacenter to help with expansion of NetApp storage systems, Cisco UCS chassis deployment, and other 10Gbps implementations.
  • Implemented Cisco Nexus infrastructure in primary datacenter enabling 10g server connectivity-BAN setup
  • Deliver exchange feeds to various business units Implement exchange delivery based on multicast and unicast transmission as well as re-transmission of traffic through Application Control Engines.
  • Configuration and troubleshooting of EIGRP, OSPF, BGP.
  • Configuration of Standard and Extended ACLs for Security.
  • Troubleshooting the issues related to routing protocols
  • Team lead of the MPLS Core Backbone Network team.
  • Liable to make the new network setup for the customers through multiple carrier circuits or broadband using OSPF/BGP MPLS layer2/3 VPN, DMVPN as well as taking care of their existing network/ infrastructure.

Environment-Citrix, Dell EMC, NSX, Palo alto, ASA, SRX, Blue coat proxy,IPS,IDS, Aruba& Meraki wireless, Infoblox, Juniper EX series, QFX5K, QFX10K,, Nexus 7K,5K,, Cisco Catalyst switches and routers 2000 and 3000 series, AWS, SONET, DMVPN, PTX, F5 Load balancers viprion.

Confidential, Bolingbrook, IL

Sr. Network Engineer

Responsibilities:

  • Engineered F5 LTM and GTM solutions in accordance to clients' specifications, meeting project goals and deadlines
  • automated Arista environments in a large leaf / spine infrastructure
  • Leveraging Data Center Interconnects through Hardware based VTEP's on Arista switches
  • Automate Core Networking Services. Dramatically increase the reliability and scalability of fundamental protocol services such as DNS, DHCP and IPv4 & IPv6 IP address management.
  • Served as Senior Technician on the GRB/Retail load balancing team
  • Served as peer reviewer and backup leader of load balancing peer review. Would peer review and approve/deny LTM/GTM/3DNS changes across most load balancing teams: domestic, international, fulltime worker, contractor, sourced labor, request driven, project driven, etc..
  • Served as load balancing engineer for advanced projects, examples include:
  • Migration of around 400 GTM WIDEIP configuration from V9 GTMs to V11 GTMs
  • Design, plan and deploy the corporate network for an office.
  • Deploy/Troubleshoot TOR, LEF, SPN switches in the Next Gen Datacenter design (Arista Devices),A10/Brocade Load balancers.
  • Perform wireless equipment (WLC and APs) upgrade across office sites.
  • Perform audits across network devices in the datacenter to find issues with link errors/drops etc.
  • Deploy Firewalls, Tunnel routers in corporate network and automate using PERL and PYTHON.
  • Operational hacks using BASH/Python scripting to ease out large scale configuration changes across devices.
  • Troubleshoot and rectify Server load balancing issues on A10, Brocade Load balancers, network, which increase latency, errors and drops
  • Implement and manage Cisco secured access infrastructure, supporting site-to-site and client VPN configuration with Any connect with RSA authentication.
  • Set up network availability between data centers.
  • Provide assistance to 45+ clients as network perspective in data center environment.
  • Create MOP, topology diagram, Visio for the changes and management of share point, Lotus notes to maintain all the network related documents.
  • Enable NAT and create ACL inbound and outbound, Policy options, route filters.
  • Migrated MCS CUCM 6x Clusters to new UCS - CUCM 8.6(2)SU2).
  • Stood up new deployment and configured UCS - CUCM 9.1(1a). Configured and helped implement new dial-plan.
  • Provided best practices and configuration assistance in various Call Manager and voice IOS functionality and configuration.
  • Performed audits of customer's environment, and provided recommendations to optimize ATI voice network.
  • Assisted in creation of LLD, HLD, NIP, and UAT documentation. Also created Visio's of customer's call handler and UCCX call flows.
  • Built and showcased a POC revolving around Unified Messaging (Single inbox).
  • Performed migrations of major and minor versions of CUCM/CUC to CUCM/CUC to 8x and 9x platforms.
  • Audited and reconfigured customer’s voice gateways to incorporate Cisco Best Practices.
  • Performed migration of over 1k VG224 device configurations from MGCP/H323 to SCCP.
  • Convert campus WAN links from point to point to MPLS and to convert encryption from IP Sec /GRE to Get VPN
  • Configured and built various Call Handlers per customer needs and specs.
  • Implemented CER 8.6 for customer’s E911 needs.

Environment: Cisco 2948/3560/4500/3560/3750/3550/3500/2960 6500 switches and Cisco 3640/12000 /7200/3845/3600/2800 routers, Cisco Nexus 7K/5K, Cisco ASA5510, Checkpoint, Aruba Controllers 6000, 3600, 3400,650: windows server 2003/2008: F5 BIGIP LTM.

Confidential, San Francisco, California

Sr. Network Engineer

Responsibilities:

  • Responsible for creating network configurations for Cisco ASR9k, CRS, Nexus 7000, 7609, 7613, 6509, 5500, 3550, 2620, 2621, 1720, Junipers MX960, M320.
  • Configuration and maintenance of routers, firewalls, and load-balancers. Included configuration of JuniperISG2000,JuniperEX4200, F5 BIG-IP 3600, and Cisco 6500. Includes protocols such as MPLS, BGP, OSPF, and VRRP.
  • Involved in switching technology administration such as creation and management of VLANS, Port security, trunking, RPVST+, Inter-VLAN routing, LAN security
  • Configured STP, RSTP in the Access Layer Switches (2950, 2960, 3750 and 3550) as a loop prevention mechanism. Configured Port-security, Private-VLANS for maintaining loop free and secure environment.
  • Responsible for the design, development, testing, and technical support of communications protocol software for TCP/IP protocol stack for embedded systems.
  • This included work on IPsec, IKE, IKEv2, SSL/TLS ( OpenSSL and WolfSSL), SSH, Crypto Engine, IPv4, IPv6, NAT, multicast (IGMP, MLD), DHCP, address auto-configuration, SNMP, SNTP, MQTT, DNS, HTTP, PPP, and other networking protocols.
  • Lead release management activities for network infrastructure. Access new software releases and patches, assist with development of test plans and develop implementation procedures and guidelines.
  • Configured Multiprotocol Label Switching (MPLS) VPN with Routing Information Protocol (RIP) on the customer's stage
  • Migrated Check Point 680 to juniper SRX 650.
  • Provided project oversight for all Network engineering projects and managed a team of network engineers.
  • Established development lab for testing of network equipment. Models included EX4200, EX3200, J2350, J6350, Cisco 6500, and Cisco 3560.
  • Provided BGP and firewall consulting to clients SRX240 and EX4200 implementation. Included reviewing and improving IP Plan, application requirements, and WAN failover.
  • Detailed technical knowledge of F5 load balancers - LTM, GTM series like 6400, 6800, 8800 for the corporate applications and their availability
  • Configured Cisco ASR-9K, ISR 2800 & 3800 series routers with OSPF as an enterprise IGP.Worked with installation of Palo Alto firewalls.
  • Understanding of Juniper EX/MX/SRX series architectures and JUNOS platform including hands on configuration
  • Maintenance and Troubleshooting of LAN connectivity problems using Ping, Trace route Environment: Cisco 3560, 4500 switches and Cisco 3825 Routers, Juniper SRX 650, F5 BIG IP 2000, EIGRP, BGP, STP, VLAN
  • Configure juniper MX-series MX960, MX240, and MX480.
  • Racking, Stacking, configuring, Nexus 5K, 3K, 2K and 7K.

Confidential, Dallas, TX

Sr. Network security

Responsibilities:

  • Secure the corporate WAN/LAN and server architecture. Maintain firewalls& IPsec gateways and related equipment.
  • Provide security guidance and drive infrastructure decisions in collaboration with other technical team, ensuring security principles are being upheld and no violations of security policy is taking place.
  • Configured the BGP as a WAN protocol, and OSPF/EIGRP as interior routing protocol.
  • configuring and Troubleshooting Cisco Firewall/ASA, Checkpoint FW, Bluecoat Proxy SG and Cisco IronPort
  • Configuration of Access List ACL (STD, Ext, Named) to allow users all over the company to access different applications and blocking others.
  • Implemented traffic engineering on top of an existing Multiprotocol Label Switching (MPLS) network using Frame Relay and Open Shortest Path First (OSPF)
  • Design and configuring of OSPF, BGP on Juniper Routers (MX960, MX480) and SRX Firewalls (SRX240, SRX550).
  • Configuration and Maintenance of ASA 5550, ASA 5510, PIX 535, PIX 515E, FWSM Firewalls and Cisco IPS 4240 using Cisco Security Manager (CSM).
  • Installing, configuring Juniper devices such as EX-2200, EX-4200, EX-4500, MX-480, MX-104 M Series, SRX210, and SRX 240.
  • Testing QoS for nexus 6k andArista7k using TCPD ump.
  • Provided redundancy in a multi homed Border Gateway Protocol (BGP) network by tuning AS-path.
  • Convert campus WAN links from point to point to MPLS and to convert encryption from IP Sec /GRE to Get VPN
  • Install and configureBluecoatProxy SG in the network for web traffic management and policy configuration
  • Configuration and troubleshooting of EIGRP, OSPF, BGP.

Confidential

Network Engineer

Responsibilities:

  • Involved in complete WAN/LAN development (IP address planning, design, installation, configuration, testing and maintenance)
  • Provided Tier 2 support for network related issues for the customer
  • Implemented redundancy/failover using HSRP.
  • Performed switching technology administration including VLANS, Inter VLAN routing, port aggregation.
  • Configuring routing protocols like EIGRP, RIPv2, OSPF & BGP and cisco ACS protocols.
  • RADIUS and TACACS+ and providing remote testing support on HDSL, T1 and T3 circuits. Designed and implemented a network infrastructure which involve setting up Ethernet backbone, desktop switching, primary remote office DS3/OC3 ATDN peering, VPN tunneling.
  • Cisco IOS experience on 3600/7200 class hardware in complex WAN environment and experience on Cisco OS and IOS on CAT6500 in Complex data Center environment.

Environment: Cisco 3750/3550/3500/2960 switches and Cisco 3640/12000 /7200/3845/3600/2800 routers, Cisco ASA5510, Checkpoint, Aruba Controllers 6000, 3600, 3400,650, Cisco nexus 7K/5K, 2248/3560/5020/6509

Confidential

Network support Engineer

Responsibilities:

  • Designed and implemented Cisco VoIP infrastructure for a large enterprise and multi-unit office environment. Met aggressive schedule to ensure a Multi-office reconfiguration project which was successfully delivered
  • Responsible for service request tickets generated by the helpdesk in all phases such as troubleshooting, maintenance, upgrades, patches and fixes with all around technical support
  • Configuring HSRP between the 3845 router pairs for Gateway redundancy for the client desktops.
  • ConfigureVRRP & GLBP andVLAN Trunking802.1Q & ISL, STP, Port Security on Catalyst 6500 switches.
  • Configuring STP for switching loop prevention and VLANs for data and voice along with Configuring port security for users connecting to the switches.
  • Working on Network design and support, implementation related internal projects for establishing connectivity between the various field offices and data centers.
  • Ensure Network, system and data availability and integrity through preventive maintenance and upgrade.
  • Involved in L2/L3 Switching Technology Administration including creating and managing VLANs, Port security, Trunking, STP, Inter-VLAN routing, LAN security.
  • Worked on the security levels with RADIUS, TACACS+.
  • Worked on commissioning and decommissioning of the MPLS circuits for various field offices.
  • Completed service requests (i.e. - IP readdressing, bandwidth upgrades, IOS/platform upgrades, etc)
  • Updated the HP open view map to reflect and changes made to any existing node/object.
  • Handled SRST and implemented and configured the Gateways, Voice Gateways.

Environment:,TACACS,EIGRP,RIP,OSPF,BGP,VPN,MPLS,CSM,SUP720, Ether Channels, Fluke and Sniffer, Cisco 3845,3600,2800 routers.

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