Managed high profile projects based on REBORN project by designing systems and configuration, directing system installation, defining, documenting and enforcing system standards; the design and implementation of new solutions and improving resilience of the current environment; maximizing network performance by monitoring performance, troubleshooting network problems and outages, scheduling upgrades and collaborating with network architects on network optimization; undertaking data network fault investigations in local and wide area environments, using information from multiple sources; securing network systems by establishing and enforcing policies, and defining and monitoring access; the support and administration of firewall environments in line with IT security policy; updating job knowledge by participating in educational opportunities, reading professional publications, maintaining personal networks and participating in professional organizations; reporting network operational status by gathering and prioritizing information and managing projects; upgrading data network equipment to the latest stable firmware releases; the configuration of routing and switching equipment; the configuration of hosted IP voice services; the basic configuration of firewalls; remote support of on-site engineers and end users/customers during installation; remote troubleshooting and fault finding if issues occur upon initial installation; capacity management and audit of IP addressing and hosted devices within data centers; liaising with project management teams, third-line engineers and service desk engineers on a regular basis; speaking with customers via email and phone for initial requirement capture.

Managed projects and network operation (50% on Project management and Network Security and 50% on Network Operation). Provided network and system engineering and design support on an existing networking security fabric environment consisting of Cisco IOS, IOS-XR, IOS-XE, NX-OS, and ASA firewalls (based on Cisco Systems’ PRIST and Best Practice Recommendation), Cisco Iron Port (Web) proxy systems, IBM XGS/GS (IDS/IPS) network systems, load balancing using Cisco CSS/GSS and F5 LTM, and CheckPoint firewalls. Developed engineering principles for end-to-end network security and provide strategy to achieve this project end using Fire Eye appliances. Provisioned with system integrator on deployment of Nextiva CCTV security systems and Lenel OnGuard access control systems throughout the agency.

Administered, managed, and monitored Cisco Systems’ powered network infrastructure among 8 sites (national and international) using Dual MPLS Mesh network. Network infrastructure including WAN optimization using Riverbed Steelhead, Nexus 7010/5548UP and Catalyst 6513 & 6509E switches; managing both internal LAN/WAN, administrated WLAN connection using Cisco ACS for both internal, voice and guest network, VoIP using Avaya 8800 series platform, Check Point Nokia appliance s managing firewalls for site-to-site VPN connection and remote access including client and clientless VPN, load balancing using Cisco CSS/GSS, cabling systems, and proactively monitoring systems. Duties include management of day-to-day network and telecom operations, strong technical skills, documentation, and customer service.

Implemented and maintained Cisco Systems’ powered network infrastructure among 5 sites (national and international) using MPLS Mesh network and DMVPN as a fail-over backup network.Network infrastructure including Nexus 5548UP and Catalyst 6509E switches; managing both internal LAN/WAN, administrate WLAN connection using Cisco 4402 WLAN controller for both internal, voice and guest network, VoIP using Cisco UCS and MCS platform, Cisco ASA, Fortinet's Fortigate and Palo Alto Firewall platform systems, Site to Site VPN Tunnel for 5 different sites (national and international) and remote access including client and clientless VPN, cabling systems, and proactively monitoring systems. Duties include management of day-to-day network and telecom operations, strong technical skills, documentation, and customer service.

Provided Tier 3 support to customers, distributors and dealers on Panasonic's PBX and VPS systems on configuration and troubleshooting issues concerning SIP Trunking, VPN access for multi-site connection and carrier related issues. Create written documentation for internal training and external support purposes.

Implemented and configured Cisco 18xx, 28xx and 38xx routers for both MPLS (Private) and Static (Public) dedicated Internet access as well as configured SIP connection onto customer’s TDM / IP-PBX / IP Centrex (Remote Worker) for Business VoIP projects. Remotely configured Cisco Systems' Call Manager & Call Manager Express v4.x/5.x, Nortel's BCM, Avaya's Call Advantage and Asterisk's VoIP system for voice communication within an Enterprise network environment. Managed 200+ Data and Voice projects for Fortune 500 clients, including CitiGroup, Sava, Locksmith, Target, Starbucks Coffee, National Cinemedia, Lake City Bank and U.S. Navy. Mentored VoIP engineers for day-to-day operations to ensure volume and quality control assurance. Worked on special internal project that focus on backbone migration using Juniper M-series routers and ISG series firewall appliances.

Installed, maintained and troubleshot Inter-Tel’s Axxess and 5x00 Communication Server PBX system for small, mid-size and enterprise customers. Performed daily administration functions; MACD assignments on new or existing keyset, ACD/UCD hunt groups, LCR/ARS, call routing modification and cable management on new and/or existing within customer’s data communication environment.Configured network equipment, Cisco Systems and Adtran’s routers, switches, gateways, Inter-Tel (86xx) / Cisco (79xx) series IP endpoints for VoIP deployment within an existing data network environment. Configured VPN and firewall appliance for secure remote connection into customer’s multi-sites for VoIP and data traffic.

Installed, maintained and troubleshot Alcatel’s PCX 4400 and Inter-Tel’s Axxess PBX system for enterprise customers. Integrated IP-PBX systems onto existing Cisco power network to facilitate VoIP environment and provided monthly reports. Performed daily MACD assignment of Avaya Telephone sets on Definity G3 systems. Worked on Cisco IP Telephony project with association of IBM on deploying Cisco IP Phones and managing Call Manager / Unity administration for JP Morgan Chase’s branches and remote offices within the Tri-State area. Conducted site evaluations while making recommendations to upper management.

Implemented and maintained data and voice network such as telecommunications equipments and circuits. Configured and managed circuits, trunk groups, and translation tables onto Lucent's EXS 2000 TDM circuit switch running ADS management software. Installed and managed Cisco AS53xx/AS54xx series gateways and Digital Tenors gateway for VoIP traffic.

Coordinated, installed and troubleshot various leased-lines for dedicated Internet access, such as T1, T3 and OC3. Implemented various Cisco access routers for mid-sized and enterprise companies’ complex networks. Provided technical support for daily operation during the installation period.Managed Cisco network infrastructure devices with in-house network management software called DNMS. Extensive clientele and vendors’ interaction for evaluating and recommending the hardware for implementation period. Implemented 10MB/100MB/1000GB Ethernet connection for internal LAN and collocation management. Created written documentation for internal training and support purposes.Setup Solaris and Linux Server to managed DNS & Bind, administrated Web server using Apache and monitored WAN connection using MTRG, SNMP and RMON.

Administrated VLANs using HSRP configuration for collocation customers on Cisco Catalyst 5500 series switches. Managed Cisco 2600/3400 and Lucent Pipeline series routers with private or public IP addresses schemes for customer premise equipment. Collaborated with other network administrators to polled information from the Rwhois servers. Conducted network training sessions for second and third shift network administrators. Employed security points, redundancy fail-over devices and disaster recovery nodes to prevent any denial-of-services attacks from the customer end-points to Globix’s border routers. Monitored customers Internet connection with HP's Open View and Cisco Systems' CiscoWork 2000. Developed a custom Checkpoint's Firewall-1/VPN-1/DMZ configuration for collocation customers. Created written documentation for internal training and support purposes.Scheduled maintenance procedure for upgrading modules, firmwares and accessories for Core routers.

Maintained and administered an upright telecommunication infrastructure and client-server based systems with other technical support analysts. Administered internal servers, applications and user accounts within Novell's Netware 3.12 and Microsoft's Window NT 4.0 environment, such as File/Print services, VPN, FTP, Exchange, SQL, IIS, Terminal and RAS/Citrix application running on Window NT server farms. Administered user accounts for securing accessibility to Windows NT servers.Proactively provided technical supports to corporate clients either help desk or on-site support.Implemented data backup and disaster revitalization procedures for network and data infrastructure.Assisted Quality Assurance analysts with configuring and testing of Corporate Developers’ online transaction software services called TM3 for securities investment clients such as Morgan Stanley, Bear Stern, Paine Webber, Bank of America and Merrill Lynch. Created written documentation for internal training and support purposes.