SUMMARY:

• To acquire a challenging position in Cisco Routing & Switching, Data Center Networking, WAN, and or Network Security, which will utilize my experience and knowledge, and allow for further growth
• More than 15 years of progressive experience in Cisco network design, implementation, troubleshooting, optimization, and maintenance.

TECHNICAL SKILLS:

Cisco Routing & Switching: Expert knowledge and hands - on experience in VLANs, VTP, Trunking, PortChannel, Switch Stack, VSS, Spanning Tree, IPv4 and IPv6 Addressing, Routing Protocols (BGP/MP-BGP, OSPF v2 & 3, IS-IS, EIGRP, RIPv2/RIPng), Multicast (IGMP, PIM, Auto-RP, Anycast, MSDP), QoS, Network Services (HSRP, GLBP, VRRP, NTP, DHCP, WCCP,NAT), SNMP, Syslog, etc.

Data Center Technologies: Solid knowledge of Cisco Data Center Architecture including ACI, FabricPath, VxLAN, L2 Routing, VDC, OTV, vPC, Nexus 9K,7K, 5K, FEX/2K, NX-OS, Cisco UCS, SAN (Cisco MDS 9k, FC, FCoE, NPV, NPIV, etc.).

WAN: Extensive experience in MPLS (PE/CE/P, VRF, VRF-lite, LDP, MP-BGP, Cisco CRS/ASR/IRS), VPNs (DMVPN, GET VPN, IPSec, GRE), Metro Ethernet, PPP, HDLC, T1, T3, Frame Relay, TDM (CS8000 Multiplexer), CSU/DSU, etc.

Network Security: Solid understanding and hands-on experience in Juniper Firewall/VPN, Cisco Secure ACS, Cisco Firewall (ASA, PIX), Cisco VPN concentrator, Linux-based OpenVPN, IPSec VPN, Cisco ACL, AAA, 802.1x, RADIUS, TACACS+, SSL, IDS/IPS, Cisco ASDM and SDM, etc.

Automation Scripting: Excellent in scripting with Excel formula, VBA and SecureCRT. Hands-on experience in E-commerce programming with PHP/ ColdFusion / Python / MySQL / MS Access.

Others (Server, Net Mgmt., Wireless): Hands-on experience in VMware ESXi and vCenter, Ubuntu, Win 2012, AD, DNS, FTP, Apache, Postfix Email, OpenVPN. Network Syslog server, SNMP, CiscoWorks, WhatsUP, HP OpenView, AlterPoint, SolarWinds, BlueCoat Proxy server, Cisco wireless (Aironet, WLC), etc.

PROFESSIONAL EXPERIENCE:

Confidential, New York, NY

Network Engineer Technology Specialist

Responsibilities:

• Successfully completed the network infrastructure planning and designing for a new science building. It analyzed the requirements and constraints in both business and technical, audited the existing network, incorporated the best practices, and provided the network diagram, configurations and guidelines for the implementation. The selected devices and technologies include but not limited to the Cisco Catalyst 6807 - XL, 4500, 3850, Quad Sup VSS, switch stacks, L2 and L3 MECs, Rapid Spanning Tree, Mobility Controllers, and Mobile Agents, etc.
• Successfully completed Internet edge optimization design. Provided the play book for the solution, and prepared all the configuration changes needed with ASR 9K, Nexus 7K, Catalyst 6807, BGP, EIGRP, etc.
• Supporting the escalation problems in both data center networking and campus networking, especially Nexus switches, multicast, Internet, Cisco routing & switching, automation scripting, etc. In addition, participating in change reviewing and approving.
• As one of the leading engineers, participating in the planning of Cisco ACI data center infrastructure, IS-IS, IPv6, DMVPN, EIGRP OTP, QoS, etc.

Confidential, New York, NY

Lead Consultant Engineer

Responsibilities:

• Successfully acted as tier 3 engineer in the supporting of Confidential data center networking.
• Played an important role in Cisco ACI and VxLAN infrastructure planning, lab evaluating and testing, and migration.
• Participated in the reviewing and approving for data center design.
• Supported the escalation problem in developing automation scripting for the network auditing and changes.
• The involved technologies include but no limited to Cisco ACI Spine and Leaf, Nexus 9500 & 9300, APIC controller, VxLAN, VTEP, multitenant, VRF, IS - IS, MP-BGP, external layer 3 connectivity, Cisco UCS. Also the FabricPath, Nexus 7k / 6k / 5k / 2k (Fex), VDC, vPC, OTV, SAN (Cisco MDS 9k, FC, FCoE, NPV, NPIV), F5 load balancer, etc.
• Successfully played a leading role in QoS re-design project for Confidential network in Confidential . It resolved the problem caused by implementing Citrix virtual PC. Conducted the network performance monitoring, LAB environment establishing, LAB testing planning and executing, and the report writing with our recommendations.
• Successfully completed two MPLS projects for Confidential . One is for Confidential network in Confidential, it migrated data centers, people centers, and hundreds of branch offices into Verizon PIP MPLS network. The other project built up a brand new private MPLS Network as the primary WAN connectivity for Confidential network in Confidential . I acted as a lead engineer in designing, implementing, testing, and trouble-shooting, and in the generating of Field Guide, Configurations, Execution & Back-out documents, run-book, time in motion, and also in WAN activation, and LAN cut-over. The products and technologies includes Cisco CRS-4/8/16, Cisco ASR1K, PE / P / CE router, Cisco 2951, 3925, 3560, 4507, 6500, Cisco WAAS, Cyclades ACS 6000, T1, T3, SONET (POS), Frame Relay, LDP, VRF, MP-BGP, OSPF, VoIP, QoS, multicast, GLBP, SNMP, and so on.
• Successfully played a lead role in three network standardization and remediation projects. Planning and tracking the changes. Developing the automation scripts needed in these projects, including the scripting for auditing, comparison check, change generating, change push, pre- & post checkout. Excel, VBA, and SecureCRT are used in the scripting.

Confidential, New York, NY

Sr. Network Engineer

Responsibilities:

• Successfully completed one remediation project for Confidential networking in Confidential . It includes 257 Cisco routers and many Juniper firewalls and VPNs, the upgrading of Cisco IOS version and hardware platform.
• The involved devices and technologies: Cisco 7500, 7204, 2800, 2600, EIGRP, HSRP, NAT, route filtering, AAA, TACACS, ACL, SNMP, NTP, logging, banners, Juniper SSG550 / SSG5, Juniper NSM, AlterPoint, SolarWind, etc.
• Successfully completed two data center projects for both Confidential and Confidential networking in Confidential .
• Built up the data center infrastructure. Designing, Configuring, Testing, Troubleshooting, and Documenting.
• The products and technologies include Cat6500, Cisco 7204, 4948, 3750, 3560, 2950, HP blades, F5 load balancer, BGP, EIGRP, OSPF, HSRP, NAT, route filters, ACLs, multicast PIM, IGMP, RP, Anycast, MSDP, etc.

Confidential, New York, NY

Independent Consultant

Responsibilities:

• Built - up and upgraded a secure LAN for the business services. It include domain controller by Active Directory, remote accessing by OpenVPN, and virtualized servers by VMWare ESXi 5.1 & vCenter 6.0. Ubuntu 15.4, Win 2012, DNS, FTP, DHCP, Web and Email servers, Website design, Juniper SSG5, Dell PowerEdge T320, etc.
• Built-up and automated the Web/Email hosting services. It include the business website design and programing with PHP/MySQL, integrating VHCS control-panel, shopping cart, credit card processing via XML and API, Apache and IIS web servers, Postfix & Dovecot Email server, ClamAV, SpamAssassin, RoundCube web mail, etc.
• Provided corp-to- corp contract network services.
• Successfully played a leading role in two large MPLS/IPSec projects for its client Confidential, and played the leading role in a large Switched LAN Infrastructure project at Confidential, which was the largest ever project in SYSCOM USA Inc. Leading the network designing, lab testing, implementing support, and acting as the last line in the escalated troubleshooting.
• Provided the assistance in VoIP setup and documenting.
• The technologies and products include but not limited to BGP4, EIGRP, OSPF, IPSec, GRE, security policy, DMZ, NAT, ACL, policy routing, HSRP, SNMP, Cisco PIX515E, Cisco 2851, 3725, 1841, Cat2950, 3560, 3750, BlueCoat SG400 proxy server, Cisco Secure ACS, CiscoWorks, Cisco Aironet AP, Cisco WLC, Switch Stack, firewall failover, Win 2003 with WhatsUP and CiscoWorks, Symantec LiveState backup, FTP backup, APC Power Shute for power failure. Wireless LAN measurements, etc.

Confidential, New York, NY

Customer Service Engineer

Responsibilities:

• 3 years dedicated to Network Security. Installed a lot of firewalls, VPNs and IPS for customers. The involved products and technologies include NetScreen / Juniper Firewall & VPN, Cisco PIX/ASA, Symantec IPS, Checkpoint, Cisco Secure ACS, Cisco 3000 VPN concentrator, Cisco AIP - SSM IPS, firewall failover, link redundancy, site-to-site / client-to-site IPsec VPN, and so on.
• 2 years in Cisco Routing & Switching. Designing, Implementing, and Troubleshooting for Intranet / Internet / Extranet. The products include Cisco 7200, 4500, 3800, 3800, 3600, 3600, 3600, 3500, 2800, 400, 800, 700, Catalyst 6500, 3750, 35050, 3560, 5000, 4908G-L3, 300XL, 2900XL, 2926G, 2948G-L3, 1900, and the like.
• 2 years dedicated to WAN. Extensive hands-on experience in WAN connectivity and device installation, testing, trouble-shooting and maintenance. The involved technologies include T1, T3, ISDN, X.25 data / voice system, PSTN, Frame Relay, CSU / DSU, CS8000 multiplexer, etc.