Sr. Network Engineer Resume
Chicago, IL
SUMMARY
- 8+ Years of experience in networking, security, installing, configuring and maintaining network devices.
- Good understanding of networking concepts such as routing protocols, VLANs, IP address management and network security.
- I have knowledge about uplogix product.
- Experience in cisco Routing, Switching and Security with strong Cisco hardware/software experiences with Cisco Routers such as 1900, 2900, 3900, Cisco ASR - 1k/9k, Cisco Multilayer Switches 4500, 6500, Cisco Nexus 2k/5k/7k/9k.
- I have knowledge of Cisco Meraki and preety much knowledge of cisco ISE.
- I can debugging and designing or supporting AAA identity based access solutions for WLAN deployments
- Expertise in Configuration of VLANS, using Cisco Multilayer switches and supporting STP, RSTP, PVST, RPVST along with troubleshooting of inter-VLAN routing and VLAN Trunking using 802.1Q.
- Proficient in using firewall technologies including general configuration, security policy, rules creation and modification of cisco ASA, Juniper SRX and checkpoint.
- Experience with R&S networking. Strong routing and switching capabilities.
- Strong experience in creating firewall policies as per the requirements on Checkpoint, Palo Alto, Cisco ASA, Juniper and Fortinet firewalls.
- Strong understanding of current and future technologies including TCP/IP, IPv4/v6, RIP, EIGRP, OSPF, BGP, Frame Relay, ACL, VPN, Wireless LAN and configuration of VLANs.
- Experience with Cisco IOS, cat OS, Cisco IOS XR.
- Expert level knowledge in IP Routing and WAN protocols (BGP, EIGRP, OSPF, ISIS).
- Proficiently implemented traffic filters using Standard and Extended access-lists, Distribution lists, Route-maps and Route Manipulation using offset-list.
- Great knowledge and good hands on experience in CISCO source fire and its products.
- Expertise in IP Subnetting and worked on various designing and allocating various classes of IP address to the domain.
- Configured Infoblox failover using infloblox DHCP that is based upon ISC DHCP modes on f5 management system.
- Network security including NAT/PAT, ACL, VPN and IPSEC on DMVPN (GRE Mode).
- Expert level internetworking troubleshooting in a large-scale network environment. Undertake support as designated Advanced Services engineer for large-scale networks.
- Extensively worked on Cisco catalyst 6509 and implemented VSS along with VDC and VPC on Nexus 5505, 7009 switches.
- Experience in configuring and Troubleshooting BIG-IP F-5 load balancer LTM.
- Worked extensively on Data Center Palo Alto firewalls and F5 BIG-IP LTM.
- Experience with convert Checkpoint VPN rules over to the Cisco ASA solution. Migration with both Checkpoint and Cisco ASA VPN experience.
- Experience with design and troubleshooting in complex network environments.
- Expertise in OSI layer model/TCP/IP.
- In-depth understanding of UDP and TCP protocols.
- Access control server configuration for RADIUS and TACACS+.
- Responsible for check point and Cisco ASA firewall administration across global networks.
- Worked on ASR 1000 series routers.
- Worked on Juniper devices like M, MX 240/480/960, EX9200, QFX10002, QFX5100, T routers on advanced technologies like, MPLS VPNs, TE and other service provider technologies.
- Worked on Load balancer F5 LTM, GTM series like 6400, 6800, 8800 for the corporate applications and their availability.
- Knowledge of VPLS/L3VPN
- Established relationships and network connectivity with vendors via site to site VPN.
- In-depth knowledge and hands on experience in Tier-2 ISP Routing policies, Network Architecture, IP Subnetting, VLSM, TCP/IP, NAT, DHCP, DNS, Firewalls.
- Configure all Palo Alto Networks Firewall models (PA-2k, PA-3k, PA-5k etc.) as well as a centralized management system (Panorama) to manage large scale Firewall deployments.
- Adept in handling network monitoring tools such as Wireshark, Netflow, SNMP and SYSLOG.
- Highly motivated with the ability to work independently or as an integral part of a team and committed to highest levels of profession.
- Experience on project management, implementation and customer requirements.
- Good interpersonal and communication skills, working with customers on solving network problems in a timely manner.
TECHNICAL SKILLS
Cisco Routers: 2600, 2900, 3600, 3800, 7200 and 7600.
Cisco L2 and L3 Switches: 2900, 3560, 3750, 3850, 4500, 4900, 6500 series.
LAN Technologist: Ethernet, Fast Ethernet, Gigabit Ethernet, SMTP, VLAN, Inter- VLAN Routing, STP, RSTP, Light weight access point, WLC.
WAN Technologies: Frame Relay, PPP, HDLC, MPLS, T1, T3, OC Standard.
Firewalls: Cisco PIX, ASA, Juniper Secure Access VPN Appliance, Fortigate 40c.
Wireless/Voice Technologies: Cisco WLC, IEEE 802.1x and 802.11, WLAN, WAP, AP, SSID, LWAPP, VoIP/SIP, CUCM, UCCM, UCCX, MGCP, RTP, PoE, CCK, DSSS.
Load Balancing: F5:6400, 6800, 8800 with LTM, GTM, ASM, APM, Access Gateway, Secure Gateway.
VoIP: Call Manager, Call Manager Express, SIP Trunking.
Applications: Wireshark, Cisco packet tracer, GNS 3, Active Directory, Cisco IOS, Cisco prime Infrastructure, Cisco UCS, Microsoft Office, PowerPoint, Excel .
Services: Done Configuration for VLANs, STP, SNMP, ELRP, DMZ and Redundancy protocol (HSRP and VRRP).
PROFESSIONAL EXPERIENCE
Confidential, Chicago, IL
Sr. Network Engineer
Responsibilities:
- Experience with design and implementation of Data center migration.
- Deploying and decommission of VLANs on core ASR 9K, Nexus 7K, 5K and its downstream devices.
- Performed OSPF, BGP, DHCP Profile, HSRP, IPV6, Bundle Ethernet implementation on ASR 9K redundant pair.
- Extensive refactoring decoupling system components for redeployment.
- Assisted in MPLS migrations, implemented a backup for the existing WAN connection using site-to-site IP sec VPN tunnels.
- Configuring routing protocols OSPF, EIGRP, RIP, MPBGP, LDP and BGPV4.
- Worked on F5 LTM, GTM series like 6400, 6800, 8800 for the corporate applications and their availability.
- Installing, configuring Cisco Routers 3640, 2000, 7200, 3845, 3600, 2800 and configured routing protocol OSPF, EIGRP, BGP with Access Control lists implemented as per Network Design.
- Installing and configuring new Cisco equipment including Cisco 3750/3550/3500/2960, Cisco catalyst switches 6500, Nexus 7010, Nexus 5548 and Nexus 2k as per the requirement of the company.
- Decoupling the software modules (DMS-MSC) and migrate it to the new platform, the Mobility Management Unit (MMU).
- Experience working with Cisco Nexus 2148 Fabric Extender and Nexus 5000 series to provide a Flexible Access Solution for datacenter access architecture.
- Configuring RIP, OSPF and Static routing on Juniper M 120 series router and MX 10, MX 40 series Routers.
- Configuring & managing Security Devices that includes Juniper (NetScreen) Firewalls, F5 BigIP Load balancers, Blue Coat Proxies and Plug Proxies.
- Configured ACLs in Cisco 5500 ASA firewall for Internet Access requests for servers, Protocol Handling, Object Grouping and NAT control using Object NAT.
- Responsible for Cisco ASA firewall administration across our global networks.
- Experience with converting Checkpoint VPN rules over to the Cisco ASA solution. Migration with Cisco ASA VPN experience.
- Designed, configured, implemented site-site VPN on cisco ASA 5500 firewall.
- Implement the firewall rules using Netscreen manager (NSM).
- Adding and removing checkpoint firewall policies based on the requirements of various project requirements.
- Remediation of firewall rules from checkpoint firewalls to Cisco ASA firewalls and their implementation.
- Experience with F5 load balancers to provide Land Balancing towards Access layer from core layer and configuring F5 LTM both by GUI and TMSH/CLI and Cisco load balancers (CSM, ACE and GSS).
- Configured and performed software upgrades on Cisco Wireless LAN Controllers 2504, 4404, 5508 for Wireless Network Access Control integration with Cisco ISE.
- Other responsibilities included documentation and supporting other teams.
- Configuration & Maintenance of Cisco ISE for Certificate based authentication for BYOD, Guest authentication and Corporate Mobile Device Authentication using Xenmobile MDM.
Confidential, Bethpage, NY
Sr. Network Engineer
Responsibilities:
- Configuring Static, IGRP, EIGRP, BGP and OSPF routing protocols on Cisco 1600, 2600, 2800, 3600, 7300 series routers.
- Installed and Powered F5, Palo-Alto Firewall.
- Migrated with a team from a predominantly Checkpoint environment to a Palo Alto global solution.
- Configuration, Troubleshooting and Maintenance of Palo Alto Firewalls - PA200, PA2000 series, PA3000 series, PA4000 series and PA5000 series.
- Design and configuring of OSPF, BGP on Juniper Routers (MX960, MX480) and SRX Firewalls (SRX240, SRX550).
- Expertise in installing, configuring and troubleshooting Juniper EX Switches (EX2200, EX2500, EX3200, EX4200, EX4500, EX8200 series).
- Experience with devices Palo Alto Network firewalls such as security NAT, Threat prevention & URL filtering. PANDB migration and code upgrades for Palo Alto Firewall.
- Expertise in configuring and troubleshooting Alcatel 7750, 7450 and 7210,HatterasEoC 400, 4000 and 6000,ADVA 825.
- Maintained, upgraded, configured, and installed Cisco ASA 5510, 5520, & 5505 Firewalls from the CLI and ASDM.
- Analyzed and tested network protocols (Ethernet, TCP/IP) using Wireshark tool.
- Configured various LAN switches such as CISCO CAT 2900,3550,4500,6509 switches and Access layer switches such as CISCO 4510, 4948, 4507 switches for VLAN, Fast Ether Channel configuration.
- Configuring VLANs/routing/Nating with the firewalls as per the network design.
- Configured EBGP load balancing and ensured stability of BGP peering interfaces.
- Experience with converting 6500 to Cisco Nexus in the data Center environment.
- Configuring RIP, OSPF and Static routing on Juniper M and MX series Routers.
- Experience configuring Virtual Device Context in Nexus 7010.
- Performing troubleshooting on slow network connectivity issues, routing issues that involves OSPF, BGP and identifying the root cause of the issues.
- Planned for the implementation of a new architecture at legacy Web Hosting Data Centers.
- Experience with converting Cisco 6500 to Cisco Nexus in the data center environment.
Confidential, Houston, TX
Network Engineer
Responsibilities:
- Installation and management of overall administration of LAN, WAN, systems involving design of network layouts, configuration and maintenance, Commissioning Routers & Switches, firewalls, IPS and ensuring maximum uptime during site deployment to VoIP.
- Packet capturing/ Packet sniffers, troubleshooting on network problems with Wireshark, identifying and fixing problems.
- Performing network monitoring, providing analysis using various tools like Wireshark and Solar winds.
- Experience with convert Checkpoint VPN rules over to the Cisco ASA solution. Migration with both Checkpoint and Cisco ASA VPN experience.
- Responsible for Cisco ASA firewall administration across our global networks.
- 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.
- Supporting EIGRP and BGP based PwC network by resolving level 2 &3 problems of internal teams & external customers of all locations.
- Upgrade Cisco Routers, Switches and Firewall (PIX) IOS using TFTP.
- 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.
- Identify, design and implement flexible, responsive, and secure technology services.
- Modified internal infrastructure by adding switches to support server farms and added servers to existing.
- Validate existing infrastructure and recommend new network designs.
- Experienced Tech Support as it relates to LAN & WAN systems.
Confidential
Networks Engineer
Responsibilities:
- Configured EIGRP for Lab Environment.
- Implemented ISL and 802.1Q for communicating through VTP.
- Working with Client teams to find out requirements for their Network Requirements.
- Designing solutions for frozen requirements using Cisco Routers and Switches.
- Deploying the network infrastructure to meet the requirements.
- Created VLAN and Inter-VLAN routing with Multilayer Switching.
- Monitor performance of network and servers to identify potential problems and bottleneck.
- Performed administrative support for RIP, OSPF routing protocol.
- Maintained redundancy on Cisco 2600, 2800 and 3600 routers with HSRP.
- Real time monitoring and network management using Cisco Works LMS.
- Provided technical support on hardware and software related issues to remote production sites.
- Responsible for LAN and internet connection file and print server.
- Maintained and installed new internet connections for customers.
- Handled installation of Windows NT Server and Windows NT Workstations.
- Handled Tech Support as it relates to LAN & WAN systems.
Confidential
Network Engineer
Responsibilities:
- Involved in troubleshooting of DNS, DHCP and other IP conflict problems.
- Spearheaded meetings & discussions with team members regarding network optimization and regarding BGP issues.
- Provide Tier1 technical support; assist users facing network problems. Perform advanced troubleshooting, diagnostics and provide tier/level-1 solutions to network failures.
- Network Migration from RIP to OSPF and EIGRP.
- Network infrastructure support to routing and switching equipment.
- Redistribute routing protocols and Frame-Relay configuration.
- Design the layout for cable installations.
- Troubleshoot and resolved dynamic routing, Ethernet switching and host connectivity issues in a window and network environment.
- Troubleshoot wiring problems and serial communication lines.
- Develop, plan and maintain documentation necessary for operation in support of LAN to WAN connectivity.
- Configured 2600, 2900 and 3600 routers with RIP and EIGRP.
- Basic Implementation of VTP and Trunking protocols (like 802.1q and ISL) on cat 3560, 3750 and 4500 switches.
- Installation, Maintenance, Troubleshooting Local and Wide Areas Network (ISDN, Frame relay, NAT, DHCP, TCP/IP) with team.
- Configured STP for loop prevention and VTP for Inter-VLAN Routing.
- Provided Network and Security Architecture and Operations support services for Windows 2008 based web, application and database servers.
- Troubleshoot TCP/IP problems; troubleshoot connectivity issues in multi-protocol Ethernet, Environment.
