Data Network Computer Science

Henry Nguyen

Summary:

A self-motivated engineer with experience in field of Verizon Transport (5G) Network

,Telecommunication System( voice and data network), and(2G,3G) Network.LMR/PTT-Radio

,IPTV/CGN Hardware/Software subsystem/systemTesting, commissioning. An analytical individual, contributor as well as a productive team player. Knowledge and hand on in 2G/3G/LTE/IMS. BSCs/RNC/RAN/BSS(GSM/GPRS/UMTS/WCDMA) Network, VoIP

(TCP/IP based) MPLS Network, L2 LAN/WAN, T1/E1, DS0,DS1,DS3, Ethernet, ATM/SONET. Experience in developing full cycle of Test Plan, Testing of SS7 land, SIP VoIP network, IS41 CDMA network, P25-PTT radios, LMR/RMS and Base Transceiver System

(BTS), Data Network (DCN) applications; also in Deployment of the Atrium (5060) wireless soft switch,(7540/7549)Media Gateway, P25-PTT BTS, Class4 and Class 5 switches. Education:

E.A electronic Engineering Technology

B.S Computer Science

M.S Computer Science

Technical Skills:

Strong computer skills (UNIX, Solaris, Linux, SQL, RTDBMS, scripting languages, etc.) Background in telecom core switching systems. Familiarity with wireless telecommunications network elements. Familiarity with GSM, UMTS, CDMA, 3G, 4G, IP, Sigtran and SS7 and/or WLAN technologies.. Excellent oral and written communication skills. Strong Team Player skills . Self Starter, team player postiive attitude. Proficient in Microsoft Office packages including Excel, Word, JAVA/HTML scripting, Oracle DB, SQL,SHELL Windows,MS DOS. TCP/IP OSPF protocols. Skilled with telecom test equipment such as SAGE box, Tekelec(MGTS),ADAM,Inet XNIA network test equipment/(Turbo7/Spectra).CCNA,CCVP, and Cisco Call Manager.

Verizon, Richarson, TX (contractor) Jan 2019 to Present. Responsibilities:

• Perform Remote Configuration and Test support for all VZB Network growth, Network Optimization, 5G and Unified Transport /IEN projects.

• Remote Commissioning, Provisioning and test of new OME6500 SONET ULH systems through final certification verification, Cisco NCS2015, NCS4016 Nortel OME6500, NT5200, 5410/5430/ Ciena Core Director, Tellabs 7100 ROADM, Fujitsu FW4100ES, 4500, and 9500 ROADM systems, classic Amplifier systems (Pirelli, Siemens and Ciena), classic DWDM systems (Nortel OC192 MOR).

• Support "in-service" network system reconfigurations, supporting on site field techs with high level switching and real time review of all system activity being performed during Maintenance Events.

• When needed to support outages will work with Network Engineering and with Field Ops to identify and troubleshoot new and existing build transport issues to isolate root cause of a problem and repair.

• Familiar or able to learn Transport software platforms, test set operations and be prepared to learn new technology in the Verizon Network.

• Ciena Site Manager, Ciena Node Manager, Cisco CTC, Fuji Netsmart, Coriant/Siemens, putty or equivalent terminal emulation program, VNC, ReVeal RXTS, COA Global, Avaya, and various Microsoft office applications.

Fujitsu, Richarson, TX (Consultant) July 2013 to Dec 2018 Responsibilities:

• To test telecom/datacom and transport products being developed and to ensure that defects are caught before the product is released to the customer. This includes testing technologies like SONET, OTN, G-MPLS and Data Services protocols like Link Aggregation, Bridging, Y.1731 Service OAM, G.8031 VLAN Protection etc.

• Create test plans, test cases and test procedures to verify that products being developed function as per the requirements written by the Systems Engineering team

- Review the requirements documents written by the Systems engineering team.

- Execute the test cases and test procedures using our products and test equipment

- Find defects in the products and enter defect report in the defect tracking mechanism

- Work with software and hardware teams in helping them isolate defects

- Verify the fixes provided the hardware and software teams Alcatel-Lucent, TX (Consultant) June 2012 to July2013 Responsibilities:

• Team Lead in T-Mobile Network Consolidation (Media gateway rehome) project. Worked/Trained/Supported different teams.

• Field Support Engineer for deployment and upgrades of the Atrium 5060 Wireless Softswitch (ATCA MDL7) and Media Gateway 7540/7549 in the North American market.

• Perform configuration, integration, validation and customer acceptance test for wireless call server media gateway solutions.

• Perform on site support as commercial traffic is introduced. A team player; being logical and thorough when addressing, diagnosing and rectifying equipment faults. Ensure to utilize to relay and provide status on site issues to customer and product support teams. AT&T Lab, Austin, TX (Consultant) June 2011 to April 2012 Quality Solution/Test Engineer

Responsibilities:

• Extensive experience in Carrier Grade NAT (CGN) or LSN deployment testing.

• Tested and validated various network attached devices (NAD), Network Media boxes & apps.Also various vendor mobile phones and app such as Sam-Sung, Apple, Google Androids.

• Created and Executed deployment test plan, test procedures and test cases for CGN or LSN.

• Configure test beds included Wireless Network, IP LAN/WAN,MPLS,OSPF/BGP Firewalls, Client/server apps.Flextronic. Austin, TX

Flextronics. Austin, TX

Functional Validation/Test Engineer (Consultant) Nov 2010 to June 2011 Responsibilities:

• Extensive experience in Avaya TDM/VoIP products which included Avaya IP PBX/offices (series 400 and 500), Avaya media gateway (G650, G450, G250),L2/L3 switches / MPLS/OSPF/BGP and Infinity G3r, G3i switching network system and wireless phone devices. Configured Avaya Call Manager, Client/Server, phone and routers.

• Configured test bench and IP LAN/WAN, Created functional test plan, test procedures and test cases for IP office phone 400 and 500 series. G650, G450, G250 media gateway and wireless phone devices.

• Supported and instructed test members to execute and validate various phone office products under test.

CISCO. Milpitas, CA (Consultant) Jul 2009 to May 2010 VOIP Development Test Engineer

Responsibilities:

• Extensive experience in Cisco IPICS products which included Call Manager Administration, LMR,IPICS application server, PMC dispatch console clients, serial/tone Radios, Unified IP phone, VoIP phone and Cisco routers.

• Created test plans, test procedures and test cases for tone/serial radio features; IPICS server application software based on customer specification, SFS and SRD documents.

• Performed Testing and Verified Linux OS, IPICS server and PMC client features.

• Performed end to end call processing via serial radios, Unified IP-phone, IPICS dispatched console.

• Performed software/hardware installation per load release; also software validation test.

• Configured and Maintained IP base network including L2 LAN switch, VLAN, LMR/RMS and multicast/unicast in lab environment.

• Created and reproduced issue report.

• Worked closely with developer for new product implementation and troubleshooting embedded or application software issues.

• Familiar with Poduct Life Cycle Development Processes, Network Performance, Optimization and high availability server testing and capable to understand new concepts quickly.

Alcatel-Lucent. Plano, Texas Mar 2008 to Dec 2008

VOIP Test Engineer - GSM Wireless Call Server/Media gateway Service and Deployment

(contract)

Responsibilities:

• Performed on site Alcatel-Lucent media gateways(7540,7570) and call server(Atrium 5060) software upgrade MOP including of daily system health checks, DB backup. Involved in Soft switch and media gateway (hardware/software) configuration, and provisioning.

• Utilized to relay and provide status on Customer site issues to product support teams about network integration, customer acceptance test execution, cutover and post cutover. Familiarity of Ethereal, Wire-sharp and Spectra-Inet Test Tool. EF Johnson. Irving, Texas 2005 to Mar 2008

Sr VOIP/Radio Development Test Engineer

Responsibilities:

• Extensive experience in system test level of EF Johnson P25 base transceiver System

• Created test plans, test procedures and test cases for P25 Radio base transceiver system

(BTS) hardware/software based on customer specification and TIA standard.

• Performed and Verified P25 radios(700Mhz,800Mhz), call processing, network management system (NMS), P25 Call Monitor System in client/server environment, IP base console system.

• Performed software/hardware installation per load release; also software validation test

• Performed P25 PTT radio devices, performance (capacity) and inter-op network testing.

• Configured and Maintained IP base network including L2 LAN switch, VLAN, and Base Transceiver Station (BTS) control and traffic channels in lab environment.

• Worked closely with developer for new product implementation and trouble shooting embedded or application software issues.

Level(3) Communication. Broomfield, CO Jul 2004 to Feb 2005 VoIP Test Engineer

Responsibilities:

• Extensive experience in product test of Level(3) VIPER Linux Platform:

• Handled all aspects of test engineering, for a variety of tasks and work efforts to assure the quality of products supported by the Viper Linux platform. Responsible for understanding complex soft switch platforms/applications, developing/executing test plans and test cases to validate the requirements, logging problems in a defect tracking tool, certifying software releases to be deployed into production, and performing day-to- day Tier IV operational activities for these products involving multiple organizations, both internal and external.

• Solid understanding and test experience with IP base telecommunication protocols.

• Familiarity in software/hardware provisioning, and troubleshooting, familiarity with the use of different types of test equipment (e.g., call signaling path and media bearer path test equipment). Other telecommunication protocol knowledge/test experience (e.g., PRI, CAS, H.323, ETSI V2)

• Performed Performance Testing, QOS Testing.

Alcatel USA. Plano, Texas Mar 1999 to Feb 2003

Software Development Test Engineer III - VOIP

Responsibilities:

• Extensive experience in product test of Alcatel EMX 2500/5000 - CDMA wireless network:

• Created test plans, test procedures and test cases for ISUP, ANSI-41, and ITU based systems from product standard requirements.

• Developed and created testing scripts and suites using TCL/TK scripting language

• Performed and verified SS7 and ANSI-41 protocols in area of call processing.

• Created issue reports that were comprehensive and detailed from Information Problem Report (IPR) management tool.

• Worked with developers to get issues resolved and followed up outstanding issues to verify that they fixed. Developed and automated various test suites for regression testing, validation testing and verification purposes.

• Generated and verified Call Detailed Records (CDRs) from AMA file.

• Provided support to IS41/SS7 network implementation projects in areas of installation, acceptance testing, and issue resolution

• Operated and maintained interconnect switching infrastructure used in the lab, specifically in the area of Mobile Switching Center (MSC) / Home Location Register

(HLR) / Visitor Location Register (VLR) as well as Signal Transfer Point (STP)

• Load Bring up Engineer: Responsible for bringing up new loads on various switches. Configured and provision Call Processing Translation Data Base.

• Load Bring up Engineer: Responsible for bringing up new loads on various switches. Configured and provision Call Processing Translation Data Base. Alcatel USA. Plano, Texas Jul 1996 to Mar 1999

Software Development Test Engineer II

Responsibilities:

• Extensive experience in system test of Alcatel Tandem products; MegaHub 600E - SS7 Network:

• Performed Data/Voice Networks and Routing Translations with PSTN (Public Switch Telephone Network); Translations with Signaling System 7 and ISDN network application.

• Performed PRI, PBX trunks, SS7 trunks, network routing, type translations

• Developed system test plans, detailed test procedures and test cases from system requirements

• Executed portions of test plan; trouble shooting, tracing and debugging issues with software

• Generated Problem Reports during system test and identified faulty software modules

• Worked with developers to get an issue resolved and follow up outstanding issues to verify that they get fixed

• Performed network traffic testing and generated report for switch performance and summary analysis, compliance verification, risk analysis and cross-product analysis

• Performed Network troubleshooting and problem resolution (DS0, T1, DS3. traveled to customer sites to deploy new loads and resolve problems.

Contact this candidate