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Network Engineer Consultant Resume

Columbus, OH

SUMMARY

  • Cisco Certified Network Engineer with 9 years of diverse experience in implementing, testing, optimizing, maintaining and troubleshooting Enterprise Network & Security infrastructure
  • Extensive experience working with switches, routers, load balancers, firewalls, VoIP infrastructure and wireless technologies
  • Strong hands - on experience on Cisco Catalyst (series 3850, 3560, 4500, 6500), Cisco Nexus (series 2K, 5K, 7K), Cisco Routers (series 7300, 4000, 3800, ASR 9000), ASA Firewall (5505/5550-X), Load Balancers (F5 BIG-IP LTM, NetScaler) and Palo Alto Networks Firewalls (PA-820, series PA-3K, 5K)
  • Proficient in monitoring and managing networks using Cisco Prime, SolarWinds, Netflow Traffic Analyzer, Network Performance Monitor (NPM), Network Configuration Manager (NCM), Cisco Works and Wireshark
  • I have knowledge of Cisco Meraki and working experience with Cisco ISE
  • I have extensive experience with configuration of routing protocols (RIP, EIGRP, OSPF, BGP), First Hop redundancy protocols (HSRP, GLBP and VRRP) and MPLS on Layer 3; VLANs, Standard and Extended ACLs, VTP, WLANs, EtherChannel, STP, RSTP and MST on Layer 2
  • Have hands-on experience with configuring IPsec site-to-site VPN tunnels, IPsec over GRE VPN tunnels and knowledge on MPLS-VPN technology
  • Preparing reports and drawing network diagrams using Office Suite and Microsoft Visio
  • Experience with Palo Alto firewall
  • Deployed Site to Site and Client to Site VPNs utilizing Palo Alto firewalls
  • Experience in installing, configuring and managing AAA Authentication servers RADIUS & TACAS+, DNS and DHCP servers
  • Configured and implemented VDC and VPC on Nexus 9k, 7K and 5K
  • Experience in troubleshooting and maintaining F5 Big-IP LTM load balancing
  • Responsible for configuring and troubleshooting voicerelated issues within CUCM, UCCE, CUC, CUPS
  • Hands on experience with troubleshooting OSPF and BGP neighbor issues and site-to-site VPN
  • Expert level internetworking troubleshooting in a large-scale network environment
  • Experience with design and troubleshooting in complex network environments
  • A motivated dynamic team player with excellent communication skills, resiliency and enthusiasm
  • Ability to provide 24x7 support, resolve complex issues and perform in a fast-paced environment

TECHNICAL SKILLS:

Router and VoIP Platforms: Cisco Routers series 7600, 7200, 3900, 3600, 2800, 2600, 2500, 1800; Cisco ISR series 1900, 2900, 3800, 4000; Cisco ASR series 900 and 1000; Juniper T1600, MX2020, M10i, M120, J2350, J4350; CUCM, UCCE, CUP, CUC, cisco IP phones

Routing Fundamentals and Protocols: Routed and Routing protocols RIP, EIGRP, IS-IS, OSPF, BGP, IPX; MPLS, IPv4 and IPv6 addressing, subnetting, VLSM, Static routing, ICMP, ARP, HSRP, VRRP, Route Filtering, Multicast, 802.11, Policy Based Routing, Redistribution, Port forwarding

Switch Platforms: Cisco Catalyst series 2960, 3560, 3750, 3850, 4500, 6500, 7000; Nexus series 2K5K, 7K; Juniper EX3300, EX4200, EX4600: Switching Fundamentals and Protocols

VLAN and VTP, STP, PVST+, Multicast,: RSTP, Multi-Layer Switching, 802.1Q, Ether Channel, PAGP, LACP, CDP, HDLC, RARP

Firewall Platforms: Cisco Firewalls (ASA 5505, 5506-X, 5585), Palo Alto Networks (PA series 2K, 3K and 5K), Juniper Net screen 6500, 6000, 5400, Juniper SSG, SRX5600, SRX5800,.

Security Protocols: 802.1x Authentication, Standard and Extended ACLs, IPSec, VPN, Port-security, SSH, SSL, IKE, AAA, Prefix-lists, Zone-Based Firewalls, NAT/PAT, Ingress & Egress Firewall Design, Content Filtering, Load Balancing, IDS/IPS, URL Filtering, L2F, IDS, TCP Intercept, Router Security, SNMP trap

Network Management and Monitoring: Wireshark, Cisco Prime, Cisco ISE, Security Device Manager (SDM), Cisco Works; TCP Dump and Sniffer; SolarWinds Netflow Traffic Analyzer, Network Performance Monitor (NPM), Network Configuration Manager (NCM)

Load Balancers: F-5 (BIG-IP) LTM 2000, 3900, 6400, 6800

WAN technologies: Frame-Relay, ISDN, ATM, MPLS, PPP, DS1, DS3, OC3, T1 /T3 lines, SONET

Cloud Computing and Automation: AWS EC2, Microsoft Azure, Cisco Meraki, Python scripting

Other Networking Protocols and Fundamentals: DHCP and DNS server, Active Directory Management, NTP, NDP, TCP, UDP, FCP, Network Implementation, Troubleshooting techniques, NHRP, NetBIOS, NFS, FTP, TFTP, HTTP, PAP, PPTP, SIP Trunking, SNMP logging,, SMTP, RADIUS and TACAS+, PBX servers, SDN, SAN

PROFESSIONAL EXPERIENCE:

Confidential, Columbus, OH

Network Engineer Consultant

Responsibilities:

  • Worked on Cisco catalyst 2960, 3850 and nexus 9k switches in data center
  • Responsible for creating vlan and configuring port security on switch ports
  • Performed configuration, troubleshooting, continuous improvement and standardization of all Network and Security Devices across the Company
  • Participated in the installation, configuration and post installation routine operational tasks on the Cisco Catalyst as well as Nexus Switches
  • Deployed Cisco Nexus in data center
  • Designed and Configured Networks for new offices, expansions, and remodels at a global level
  • Performed OS upgrades on various models of Cisco, Palo Alto Networks and Aruba Routers, Switches and Firewalls
  • Created Visio drawings to document enterprise network topologies
  • Configured NAT, Security Policies and URL Filtering on Palo Alto Networks Firewall (5260, 3060)
  • Maintained stock and inventory of network equipment
  • Working experience with F5 load balancer (LTM)
  • Created access-control polices, Intrusion policies, Malware polices on Firepower (IPS, IDS, Malware Detection)
  • Built IP-Sec tunnels from Cisco Firepower to SRX-220’s in remote sites using KE pre-shared keys, AES-128, SHA and DH5
  • Perform network engineering, design, planning (WAN & LAN) & implementation. Studied single point of failure & designed WAN structure in such a way that there are no failures in network in case of any device or link failure
  • Managed the Cisco network infrastructure using Cisco Prime
  • Configuring, administering and troubleshooting the Check Point, Palo Alto and ASA Firewall
  • Dealt with creating VIP (virtual servers), pools, nodes and applying iRules for the virtual servers
  • Configuring, Monitoring and Troubleshooting Cisco's ASA 5500
  • Failover DMZ zoning & configuring VLANs/routing/NATing with the firewalls as per the design
  • Experience with configuring OTV between the data centers
  • Performed configuration, troubleshooting, continuous improvement and standardization of all Network and Security Devices across the Company
  • Designed and Configured Networks for new offices, expansions, and remodels at a global level
  • Performed OS upgrades on various models of Cisco, Palo Alto Networks
  • Provided support for cisco VOIP infrastructure which included voicemail, extension mobility and device profiles using CUCM for cisco IP phones (7960, 7821)
  • Configured and managed cisco wireless access points using cisco’s wireless LAN controller (5508 and 5520)
  • Migrated wireless access points from one controller to another
  • Integrated all the network devices into Solarwinds using SNMP discovery protocol
  • Configured ether channels on switch ports to increase bandwidth and load balancing
  • Configured high availability on Palo Alto firewall
  • Upgraded cisco IOS images using TFTP servers
  • Created Visio drawings to document enterprise network topologies
  • Configured NAT, Security Policies and URL Filtering on Palo Alto Networks Firewall
  • Expertise in Cisco Firepower FTD managing with FMC
  • Created access-control polices, Intrusion policies, Malware polices on Firepower (IPS, IDS, Malware Detection)
  • Built IP-Sec tunnels from Cisco Firepower to SRX-220’s in remote sites using KE pre-shared keys, AES-128, SHA and DH5
  • Maintained stock and inventory of network equipment

Environment:Cisco routers Series 7200/7600/3800, ASR 7000/9000, Palo Alto, Firepower, Sourcefire, Cisco catalyst switches 6500/5000/3500/2950 and Nexus 7K Routing Protocols like OSPF, BGP, VPN, MPLS, HSRP, GLBP, Big-IP F5 LTM Load Balancer, Python scripting,Wireshark, Cisco Works, MS Visio and Palo Alto firewalls

Confidential - Lincoln, RI

Network Engineer

Responsibilities:

  • Played a principle role in configuring and implementing composite Network models consisting of Cisco 7300, 4000, 3800, ASR 9000 series routers and Cisco catalyst 3850, 3560, 4500, 6500 series switches
  • Designing, implementing LAN/WAN configurations on Cisco Nexus 5k and Catalyst 6508 switch
  • Configured BGP, EIGRP, VRF and IPSec tunnels to provide fully redundant services on Cisco Nexus and ASR
  • As part ofNetworkOperation team, I am responsible for troubleshooting cisco routers, switches and Palo Alto firewall
  • Worked with Cisco ASA 5500-X and Palo-alto Next-Gen PA-5000 Firewalls to implement and manage NAT policies, IPsec site-to-site and remote VPNs
  • Troubleshoot complex Cisco UCCE/ICM issues and provide solution
  • Provide extension mobility to users using CUCM
  • Configure SolarWinds platform for monitoring and used tools like Network Performance Manager (NPM) as well as Netflow Traffic Analyzer (NTA)
  • Participated in the installation, configuration and post installation routine operational tasks on the Cisco Catalyst as well as Nexus Switches
  • Implemented Hot Standby Router Protocol (HSRP) to provide high availability
  • Maintained and supported BGP and Multiprotocol Label Switching (MPLS) on WAN network
  • Redistribution of OSPF and EIGRP into BGP with the correct tagging parameters
  • Provided assistance in redundancy mechanisms for multi homed Border Gateway Protocol (BGP) network by tuning AS-path for various network segments
  • Responsible for configuration ofsecuritypolicies, rules creation and modification on Palo Alto Firewalls
  • Worked on troubleshooting connectivity issues on Palo Alto firewall (PA 5050)
  • Extensive packet level debugging and troubleshooting using packet capture tools like wireshark
  • Experience with managing DNS, DHCP and IP addresses using Inflobox
  • Experience with configuring URL filtering and creating access policies on Palo Alto firewall
  • Working experience with F5 load balancer (LTM)
  • Perform tier 2 support for VoIP infrastructure and involved with configuring Call Manager (CUCM) and Cisco Unity Connection (CUC)
  • Used Python scripting for network sniffing and managed parameters from cisco routers
  • Configuring rules and maintaining Palo Alto Firewalls and analyzing the logs
  • Configuration and troubleshooting Site to Site as well as remote rccess VPN
  • Configured access lists (ACL) for Internet access to servers on F5
  • Strong hands on experience in installing, troubleshooting, configuring of Cisco Catalyst switches 2960, 3850 and Nexus 9300
  • Configured Cisco ISE on enterprise switches to provide authentication to all the access ports
  • Created and maintained various vlans on the switches
  • Provided voicemail, extension mobility and device profiles using CUCM for cisco IP phones (7960, 7821)
  • Configured and managed cisco wireless access points using cisco’s wireless lan controller (5508 and 5520)
  • Migrated wireless access points from one controller to another
  • Integrated all the network devices into Solarwinds using SNMP discovery protocol
  • Configured etherchannels on switch ports to increase bandwidth and load balancing
  • Configured high availability on Palo Alto firewall
  • Upgraded cisco IOS images using TFTP servers

Environment:Cisco routers Series 7200/7600/3800, ASR 7000/9000; Cisco catalyst switches 6500/5000/3500/2950 and Nexus 7K Routing Protocols like OSPF, BGP, VPN, MPLS, HSRP, GLBP, Big-IP F5 LTM Load Balancer, Python scripting,Wireshark, Cisco Works, MS Visio and Palo Alto firewalls

Confidential - Sacramento CA

Network Engineer

Responsibilities:

  • Worked, managed and maintained LAN networks on Cisco Nexus 5k and Catalyst 6500 switches
  • Deployed Cisco Nexus in data center
  • Experience configuring VPC, VDC and performing software upgrades on Cisco Nexus 7010
  • Configured and troubleshot OSPF, BGP, VRRP and static routes on cisco 2900, 3800, 4000 routers
  • Configured IPSEC VPN (site to site remote access) on Palo Alto firewall and ASA firewall
  • Provide second/third level technical support for enterprise voice infrastructure using CUCM, Unity Connection and Unity Presence
  • Configured and maintained Cisco Catalyst Switches 6500, 4500, 3500, 2900 series and Cisco Nexus Switches 7K/2sK
  • Responsible for overall firewall configuration implementations and policy installations across all platforms during maintenance windows
  • Configured and maintained IPSEC and SSL VPN's on Palo Alto Firewall
  • Configuring TACACS on cisco switches and routers
  • Managed Palo Alto firewalls using Panorama
  • Created App ID on Palo Alto firewall (PA 5060)
  • Created access policies on Palo Alto firewall and provided NAT functionality between inside and outside zones
  • Troubleshoot local and remote VPN access to multiple EMR and billing applications residing in Data Center
  • Configure cisco switches, wireless access points and wireless LAN controllers to provide wireless access to the users
  • Worked with Cisco Layer 3 switches 3750, 4500, 6500; Cisco Nexus 2248, 5548, 6001 and 7018 in multi VLAN environment
  • Configuration and troubleshooting of Cisco catalyst 6509, 7613 switches
  • Responsible for the configuration of routing protocols (OSPF, EIGRP and BGP) on Cisco Routers (7000, 5300, 4000, 2500, 3000, 2600)
  • Experience migrating from Cisco 6500 to Cisco Nexus 7k in the data center environment
  • Redistribution of OSPF and EIGRP into BGP with the correct tagging parameters
  • Implemented and configured BGP on WAN side as wells as redistributed OSPF routes to BGP
  • Expert level experience with maintaining VLAN, VTP, RSTP, ether channel (LACP and PAGP) and troubleshooting inter-VLAN routing
  • Configured Cisco ASR 9001/9010/9910 and Catalyst 6509 routers with HSRP as well as advertised networks in BGP and OSPF
  • Involved in configuring and implementing Cisco7600, 7200, 3800 series routers and Cisco 2950, 3500, 5000, 6500 series switches
  • Installed high availability on Big IP F5 LTM load balancer to provide uninterrupted service to customers
  • Configure Cisco ASR 9001/9010/9910 and Catalyst 6509 routers with HSRP and advertise network in BGP and OSPF
  • Configured and deployedCisco Nexus switches and Catalyst switches in data center
  • Extensive implementation of firewall rules on Palo Alto firewall and ASA firewall
  • Managed disaster recovery plan and implemented of SolarWinds in the network
  • Design and deployed F5 LTM load balancer infrastructure per business needs from the ground up approach
  • Designed datacenter upgrade from old Catalyst to Nexus 9000/2000 Fabric solution
  • Experience with Cisco LAN controllers (5760 and 5508)
  • Managed the F5 Big IP LTM appliances and created i-Rules

Environment: Cisco routers Series 7200/7600/3800, ASR 7000/9000; Cisco catalyst switches Cisco Catalyst 3850/4507/6509, Cisco 2500/3640/7200/7940 Routers, Nexus 7K, Routing Protocols OSPF, BGP; VPN, MPLS, VoIP, Wireless APs, Big-IP F5 LTM 6400 Load Balancer, citrix NetScaler, Python scripting, Wireshark, SolarWinds, and Palo Alto firewalls

Confidential, Charlotte, NC

Network Engineer

Responsibilities:

  • Migration from RIPv2 to OSPF in enterprise LAN network
  • Implemented Zone Based Firewalling and Security Rules on the Palo Alto Firewall
  • Created VLAN and Inter-VLAN routing with Multilayer Switching
  • I was the reviewer and approver for change management request related to switch configuration
  • Executed the F5 VIPRIONto deal with high traffic volume for L7 traffic
  • Designing solutions based on requirements using Cisco Routers and Switches
  • Managing Cisco Unified Communications Manager (CUCM) cluster with 5000+ phones utilizing dual-homed SIP trunks
  • Implemented ISL and 802.1Q for communicating through VTP
  • Maintained security policies including NAT, VPN and secure remote access on ASA firewall
  • Configured IPSEC VPN (Site-Site to Remote Access) on ASA firewall
  • Successfully installed Palo Alto PA-3060 firewalls to protect data center and provided L3 support for routers and switches
  • Implemented Positive Enforcement Model with the help of Palo Alto Networks
  • Responsible for setting up the infrastructure environment with Cisco catalyst 2960, 3850 and 6500
  • Hands on experience with Palo Alto firewall
  • Researched, designed and replaced aging ASA firewall with new next generation Palo Alto firewall
  • Second tier troubleshooting and support for all LAN network devices
  • Involved in troubleshooting IP addressing issues and updating IOS Images using TFTP
  • Experience in deploying EIGRP/BGP redistribution and changing the metrics for the primary and back up
  • Installed and configured Cisco Catalyst switches 6500, 3750 and 3550 series
  • Configured routing protocols like OSPF, EIGRP and BGP
  • Implemented access control lists implemented as per network design
  • Maintained Redundancy on Cisco 2600, 2800 and 3600 router with HSRP.
  • Managed High Availability planning and implementation using SolarWinds Failover Engine
  • Strong knowledge in Windows Server Operating Systems, Active Directory, Exchange, DNS, DHCP, and Terminal Services
  • Handled different tasks such as network address assignment, Domain Controller, DNS and Active Directory
  • Provide administration of services (Active Directory, security appliances, switching & telecommunications)
  • Knowledge about adds, moves and changes of network users in Active Directory
  • Maintain Windows 2000 Active Directory server

Environment: F5 Big-IP LTM 3600/6400/8800c Cisco ACE, cisco Nexus 2148/7010/5000, checkpoint IPSO, SolarWinds, Cisco Works, Frame-Relay, cisco 6500/3700/7200 routers, PA- 3060 firewalls, Net screen 500, VPN tunnels, MP-BGP, MPLS LDP, windows server 2012R2, Active Directory

Confidential

Network Engineer

Responsibilities:

  • Designed VLAN’s and set up both L2 and L3 VLAN’s for communication in Enterprise network
  • Configuration and maintenance of Cisco 2900 series and troubleshooting VLANS as well as trunking protocols
  • Configured EIGRP, BGP
  • Implemented load balancing between Cisco L3 switch by HSRP and GLBP
  • Delivered Departmental Efficiency through advanced engineering, technical support and documentation procedures
  • Performed the general activities of LAN administration on switches, routers and Wireless LAN controllers
  • Provided high-level technical support, including identifying and resolving problems on Cisco supported products for e-commerce infrastructure
  • Involved in maintaining external routing and internal routing for DMZ servers
  • Provided Technical support to the entire organization on software, hardware and network
  • Involved in troubleshooting of DHCP and IP conflict problems
  • Installing computer hardware, software, printers, wired, wireless network management, maintenance and troubleshooting devices and network problems

Environment: Cisco catalyst 2960/3750/4500/6500 switches, Linux, Cisco 2800/2900/3000 ISR routers, cisco VoIP, cisco 3640/9000/7200/3845/3600/2800 routers, SQL, Cisco ASA 5505, Juniper Ex switches, Active Directory, Juniper ACX series routers, Windows Server 2003/2008, ACLs, SIP, RIP, OSPF, MPLS, BGP, EIGRP, Wi-Fi, WLANs, WAN, WAP, IDS, IPS, Aruba WLAN, VPN

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