SUMMARY

SKILL SUMMARY

Be able to conceptualize, architect, design and implement secured voice/data network.

CERTIFICATIONS: CCNP, CCSP, CCVP, and CCIE (#11338, R&S)

PROFESSIONAL EXPERIENCE

Data Network Engineer (1/2/2012 – 3/30/2012)
Confidential,

• Evaluate migrating voice network and recommend redesign directions
• Identify and communicate technical gaps to internal and external functional teams
• Configure IPT components: CUCM, Unity, and VG
• Configure UCCE components: CUBE, SIP Server, CVP, and ICM
• Configure Aceyus for reporting and Verint for recording
• Complete enterprise IPT and UCCE migration
• Troubleshoot migration issues and support daily voice network operations

Data Network Engineer (June/2009 – November/2011)
Confidential,

• Gather information on existing CC environments and future requirements
• Understand the deficiencies and limitations of existing CC environment
• Review and contribute RFP, business cases, and system requirements
• Guide architecture team with the vision of pure IP-based and SIP only environment
• Work with vendors and evaluate vendors’ solutions and products
• Architect the CC solution with high availability (HA) and right capacity
• Size bandwidth needs for five CC and two DC for WAN access
• Lead MPLS and QoS design and implementation to support Enterprise CC migration
• Lead Session Border Controller (SBC) solutions to have a secured voice network

Architect and Design WAN Changes for Confidential,

• Plan and design changes to improve network capability, stabilities and capacity
• Create HL design, IP address schemes, VLAN, and cable runs for new capabilities
• Review existing and newly designed network elements to ensure redundancy, diversity, cost efficiencies, aggregation impact, and capacity are being met
• Act as Cisco vendor interface to evaluate and implement new technologies
• Define DC switch requirements, evaluate vendor products, and recommend solutions
• Recommend and justify solutions to ensure WAN circuit and service delivered
• Lead L2/L3 design and implementation for new offices and new applications
• Interact with security, performance, capacity, NOC, system monitoring, and IT teams
• Coordinate changes with Telco and Network carriers for WAN/Internet connections
• Provide Tier 3 technical support, train and monitor Tier 1 and 2 support engineers

Cisco TAC Engineer (July/2007 – April/2009)
Customer Technical Support for Confidential,

• Provide third level technical supports on all aspects of Cisco UC Systems – CM, CME, CVP, Unity, IP phone, IPCC, CUPS (SIP server), and voice GW
• Configure, implement, troubleshoot and maintain Cisco Voice UC systems.
• Apply analytical skills and technical knowledge to solve product/network problems
• Determine root causes and resolutions on deployed voice networks
• Utilize complex lab setups to recreate and solve customer issues
• Keep up-to-date technical skills with new products to support market needs
• Interact and technical supports across different technical and development teams
• Provide technical presentations and training to internal teams.

Senior Voice Network Engineer (January/2006 – July/2007)
Confidential,

• Convert voice networks from Avaya to Cisco VoIP solutions.
• Architect, design and implement VoIP solutions for employees and CC agents
• Design/implement VOICE infrastructure with dialing plan, route group, route list, route pattern, class of services, media resources, music-on-hold, and voice GW
• Implement media resource of transcoder, conference bridge, and Music-on-Hold
• Create CM features such as Attendant Console, Extension Mobility and IPMA
• Preserve IP phone calls with SRST for temporary WAN outage
• Deploy Cisco IP phones and cut lines from Avaya to Cisco IP phones
• Create Unity subscribers, voice mails, call handlers with greetings
• Create CRA features such as AA and ICD by CTI route points/ports and scripts
• Implemented LAN/WAN QoS with marking, queuing (LLQ), and congestion mgmt
• Implement automatic alternate route (AAR) and FAX.

Data Network Engineer III (Aug/2004 – 2005)
Confidential,

• Deploy data networks with routes and switches for green field customers
• Move customers’ frame relay to point-to-point T1s for all the remote locations
• Configure customers’ IOS security and access security
• Redesign customer’s IP addressing and routing strategies
• Implement WAN BGP and ISDN backup to increase clients’ network reliability.
• Resolve/consult clients’ network issues and deliver informal technical discussions.
• Identify and resolve clients’ routing, signaling and security issues.
• Interact with clients, data centers, Telco, SBC groups, and technical consultants
• Monitor customer networks, created trouble tickets and informed customer the status
• Identify network congestion and provided solutions to resolve nodes flapping.
• Setup and debug secured VPN client to access company’s VPN concentrator.

Confidential,
VoIP Solution Architect – (1998-2001)

• Architect, design and implement VoIP solutions (SS7, H.323, and MGCP)
• Work on voice and data convergent strategies and solutions.
• Present technical solutions and be able to handle broad technical questions
• Identify working items on all the involved components end to end
• Architect voice gateway and identify requirements to simplify convergence solutions to reduce product COGS and time to market
• Evaluate and recommend internal/external gateway architecture and products
• Propose potential services and capabilities to expend market share
• Team with capacity and performance leads to ensure overall systems integrity
• Review customer technical specification and Request for Proposal (RFP)
• Work closely with developer, architect, system engineer, product, and marketing teams to define and meet customer’s requirements
• Have the ability to lead, reach goals and provide tiered supports to team members

ATM Solution Architect and development – (1992-1998)

• Extensive ATM system development work included requirements, architect, design, coding and testing on call processing, resource management, signaling and routing
• Design and implement Object Oriented (OO) data analysis and techniques
• Document many HL and LL designs and team leader on several development projects

Telephony Switching ISDN Systems Software Development – (1986-1992)

• Worked on all aspects of PSTN ISDN system switching product development cycle for call processing, supplemental services, routing and signaling
• Team leader on several development projects from concept to implementation

Technical Backgrounds:
IP Voice, IP Routing and Switching (BGP, OSPF, MPLS) and IP security

Education: MS Computer Science