Professional summary:

Experienced, focused and results driven IT professional with over 13 years of solid engineering experience with information technology on LAN and WAN. Expert understanding of large/small scales IT environment and the process utilized by the latest cutting edge technology. Solid understanding of a network infrastructure implementation and planning. Excellent interpersonal and communication skills and ability to interface with clients and customers to assess needs. Currently certified in CCNP, CCDP, CCDA, CCNA, CCSA, MCSE, MCSA, CNE, Security , Network , A along with Top Secret TS clearance and Public Trust Clearance.

Confidential

Sr. Network Engineer

• Maintaining, installing and troubleshooting the Wide Area Network and Local Area Network LAN including but not limited to Cisco 2800, 2900, 3900,7200, 6500 and 2960 POE series devices, Ipsec Tunneling, Eigrp, BGP, Port Channel, HSRP, ACL, VPN and other network related issues.
• Providing support for Cisco networking and telecommunications equipment with a focus on Cisco devices.
• Adjusting policies and thresholds for system monitoring on WhatUpGold and SolarWind.
• Identifying, diagnosing, and resolving network security problems on Cisco ASA 5510,5540 firewall.
• Maintaining daily network operations, documenting all changes via tickets, SOPs, and Visio diagrams.
• Applying and enforcing network security policies and procedures as established by the DoL ECN National Office.

• Providing initial contact, troubleshooting, and resolving of high level technical issues throughout DoL enterprise network and its remote locations.
• Performing Cisco switch/router hardware installations, adds, changes and upgrades.

Confidential

Sr. Network Engineer

• Supported OCC Data Center by planning, implementing and installing of Cisco network/VoIP devices to fulfill agency needs.
• Designed and Deployed Cisco VOIP Unified Communication Manager 8.6 and Cisco
• Unity Connection voice mail on Virtual environment VMware ESXi clustering Unify Cisco computing UCS system, SIP, PRI trunk in supporting OCC Telephony system.
• Troubleshoot Cisco 7206VXR, 4500, 6509, 4900, 2951. 2800,7609, 3900, 3560 2960
• series routers/switches, WAN Accelerators riverbed, expand , Cisco Unify Call Manager 8.6 VoIP , Unity Connection 8.6 voicemail , IP telephony system, Cisco PSTN/Fax Gateway, Cisco IP phones, Eigrp, BGP/TNET, IP routing, DMVPN Tunnel, Port-channel, HSRP, QoS, Analog/PSTN voice Gateway, and other WAN related issues.
• Developed and maintained network architect diagrams and documentations related to the entire infrastructure.
• Implemented various backbone circuits including SIP trunk to support agency IP
• telephony project, DS3, PRI, OC3, OC12, OC45, T3, T1, PPP, MPLS for OCC enterprise network.
• Designed and implement OCC remote offices WAN technology including but not limited to core router/switch, access switch, wan accelerators, main backbone circuits and VOIP Cisco Telephony services.

Confidential

Sr. Network Engineer

• Supported OCC Data Center by planning, implementing and installing of Cisco network/VoIP devices to fulfill agency needs.
• Designed and Deployed Cisco VOIP Unified Communication Manager 8.6 and Cisco
• Unity Connection voice mail on Virtual environment VMware ESXi clustering Unify Cisco computing UCS system, SIP, PRI trunk in supporting OCC Telephony system.
• Troubleshoot Cisco 7206VXR, 4500, 6509, 4900, 2951. 2800,7609, 3900, 3560 2960
• series routers/switches, WAN Accelerators riverbed, expand , Cisco Unify Call Manager 8.6 VoIP , Unity Connection 8.6 voicemail , IP telephony system, Cisco PSTN/Fax Gateway, Cisco IP phones, Eigrp, BGP/TNET, IP routing, DMVPN Tunnel, Port-channel, HSRP, QoS, Analog/PSTN voice Gateway, and other WAN related issues.
• Developed and maintained network architect diagrams and documentations related to the entire infrastructure.
• Implemented various backbone circuits including SIP trunk to support agency IP
• telephony project, DS3, PRI, OC3, OC12, OC45, T3, T1, PPP, MPLS for OCC enterprise network.
• Designed and implement OCC remote offices WAN technology including but not limited to core router/switch, access switch, wan accelerators, main backbone circuits and VOIP Cisco Telephony services.

Confidential

Sr. Network Engineer

• Configured and deployed Layer 2/3 Juniper IC 6500 network access control NAC to enhance network access level security, provide central policy management, distributed enforcement points, and endpoint client software
• Configrued Cisco layer2/3 switches 3560, 2950, 4500 and routers 2600, 3750 3900 series including but not limited to Eigrp, IP routing, SNMP, HSRP, GRE Tunneling, VTP, Vlan trunking, radius, dot1x port level access control, and layer 2/3 Network Access Control in DoS enterprise Lab to simulated production environment.

Confidential

Sr. Network Engineer

• Designed and Planned infrastructure bandwidth/traffic filtering appliance, network Traffic control/monitoring, backup/recovery plan and network intrusion prevention.

• Rearchitected Raytheon enterprise network from legacy network layer2/3 devices to latest Cisco catalyst switch, router and Firewall.
• Managed and maintain over all Microsoft, Novell and Linux mixed network environment stability and efficiency. Analyzed traffic loads and implemented quality of service QOS and Wireless Wi-Fi 802.11N for corporate network. I
• Implemented Wireless/Wi-Fi 802.11N, Cisco 2600, 2800, 3750 backbone router and Cisco ASA505 firewall for remote and corporate sites.
• Supported and maintain over 70 Dell servers, Cisco routers, Cisco PIX, ASA5505, Catalyst multilayer switches and Checkpoint HA firewall.
• Troubleshoot DS3, T1 circuits related issues, Cisco 4500 L2/3 switching, ACL, Eigrp routing, network latency, VPN, Virtual Network, Ghost/RIS multicast, Microsoft AD service, DNS, DHCP, Clustering, Web server, verita backup/restore, GPO, RAID, Remote desktop deployment, WSUS, email spam/virus filtering and Cisco unity VOIP.
• Designed Infrastructure and remote sites network diagrams and documentations.
• Provided knowledge overview and resource to junior Engineers/Technicians.
• Applied strong needs analysis and problems solving abilities to resolve LAN/WAN issues.

Confidential

Sr. network Engineer

• Supported and troubleshoot over 200 NetSever LXR Pro, Compaq Proliant 380, 580 servers' family, Sun Enterprise servers with NetIQ, What'sUp Gold, Solarwind, OPNET network analysis software under Microsoft Windows2000 and Sun/Unix environments.
• Troubleshoot Microsoft Active Directory service, Security Patches, Exchange Email, IP printing, Access privilege, server security, Files permission, Microsoft DFS, Laser printers, Clustering, remote access and others connectivity issues.
• Assisted with backup and restore on SAN XIOtech Magnitude technology to Jukebox Scalar1000 2000 for SUN Enterprise servers and Windows 2000 Clustering environment.