CHAU NGUYEN

2034 Burnside Dr, Allen, TX 75013

Email: ctnguye6@yahoo.com

Cell: (214-448-9313)

US Citizen

 

SUMMARY

·         Over 15 years of strong experience in Testing and System Integration on Telecommunications and Networking Software, STB, VOD, IPTV, IITV, PBX, and SIP VoIP product testing.

·         More than 5 years of strong working experience in Set Top Box Testing with strong knowledge of testing tools like CQ, MQC.

·         Mobile network support for GSM, CDMA, LTE in wireless telecommunications industry

·         Strong working experience with RF, Wireless Nortel, NSN, Ericsson, Alcatel (UMTS, CDMA, 3G, LTE), wire-line and triple play (VoIP, IPTV, data), IITV solution, IPTV solution, VoATM, OC3-48, SONET, NMS, EMS, SIP protocol, Telematics.

·         Expertise in complete STLC (Software Testing Life-Cycle) that includes analyzing requirements, writing/reviewing test cases, exploring engineering builds, analyzing & debugging through error logs, performing functional/Integration and automation testing of VMS.

·         Has contributed to various STLC stages, respond to various functional/regression & test automation tasks promptly with hands on testing by executing test cases.

·         Strong ability to work as a team member, share resources and flexible to accommodate/meet common business/team goals

·         Experiences testing with Mobile apps on Android / IOS OS and or CE devices.

·         Experiences for testing VoIP and knowledge for VoLTE.

·         Strong on test tools as Quality Center, Clearquest and QTP

·         Strong ability to debug complicated system-level issues.

·         Strong ability to multi-task, and work under project pressure.

·         Worked extensively in diverse teams – small and large size engineering teams.

·         Highly creative and results driven, strong work ethic, with excellent planning and organizational skills.

·         Excellent communications and analytical skills.

 

TECHNICAL SKILLS

Ø      C, C ++, UNIX, Linux, FORTRAN, Python, Sun OS, Oracle, SQL, NBI and TL1

Ø      Applications: Microsoft Word, Excel, MS Access, Power point, Project Central Application, Clear Quest and Clear Case, RF system, wireless system.

Ø      LAN/WAN design, VGW, MGCP, GWC, T1/E1 Networking, Tellabs DACs, Tektronix K1205, Network/Spectrum Analyzer, Signal Generator, DS1, DS3, ISDN

Ø      Nethawk Analyzer, Distributed Network Analyzer (HP-DNA), Spirent Test Center, Empirix/Hammer Analyzer, Empirix XMS Analyzer, Abacus 5000, Smartbit 6000, Agilent, Fire-berd 6000, Inet SS7, MPLS, COTS, DOORs.

Ø      ALU FTTN 7330, 7340, 7342, BPON, GPON, Light Speed IP Routing 7450, 7750, Ericsson EDA 1500, EDA 1200.

 

EDUCATION

Ø      Bachelor of Science in Electronic Engineering, University of Central Florida, Orlando, FL 1992

 

PROFESSIONAL EXPERIENCE

Agero (ATX Group, Cross Country), Irving, TX                                                          May 2011 - Present

Software Quality Assurance - Lead

 

Responsibilities:

·         Participate in the Functional Specification and Technical Design reviews.

·         Provide inputs regarding functionality and testability of the product.

·         Familiar with Wireless technologies - CDMA, and GSM. Knowledge of 2 or more of: TCP/IP, SMS, Siebel, SAP, XML, Computer-Telephone Interface, Sybase, SQL, DB2, Perl.

·         Review project requirements and design documents and extract testable requirements and test exceptions.

·         Provide inputs during the size and effort estimation process for assigned   projects.

·         Develops Software Test Plans and Test Cases with minimal supervision.

·         Performs system level testing on software, and hardware.

·         Experience with test tool as Qc (Quality Center), QTP, ClearQuest to create test cases

·         Participates in system integration testing and final validation testing

·         Executes test cases, and logs test results.

·         Debugging of HW and SW issues.

·         Generation of Defect Reports. Track defects through defect resolution, retest and closure.

·         Configure and maintain test systems.

·         Increase knowledge base in areas of product functionality, test methodology and test tools.

 

Nokia Siemens Network, Irving, TX                                                             Feb 2010 - Apr 2011

Sr. SIP System Integration - Lead

 

Responsibilities:

·         SIP integration for iiTV, VoIP, Voice mail, call disposition

·         Install server IITVG, IITVS, DCA transcoder, operation systems, configure routers, switches, VLAN and SIP application Servers.

·         Install OS for window, Linux, and Sun.

·         Create / Maintain & review various functional test scripts for Set Top box UI, Backend / Web services testing.

·         Hand on STB testing with Motorola, Cisco model

·         Provisioning Total Manage TM (Myrio) for Live TV stream, VOD.

·         Knowledge for Verware tool for testing WIFI

·         Working in depth system application manager for manages PC, IPAD, Android phone, I-phone.

·         Verify handset Android, I-Phone, Ipad with testing for Voice, video, live TV and VOD include support parent control.

·         Experience with test tool as Qc (Quality Center), QTP, ClearQuest to create test cases

·         Creating and review test plan, test cases, conditions and/or scenarios. Report test outcomes by collecting, analyzing, summarizing and displaying data recommending software change and documenting test results in quality center. Fulfilling quality assurance role throughout a full product life cycle.

·         TAC3 support for IITV solution.

 

 

AT&T, King of Prussia, PA                                                                                        Aug 2009 - Dec 2009

Sr. MSN Provisioning – Lead Test Engineer

 

Responsibilities:

·         Worked on LTE with 2G to 3G UMTS Packet Core and Switches Network Architecture.

·         Extensive knowledge in UMTS layer 2 switching concepts, layer 3 IP routing protocols, ATM, and Transport connectivity such as T1, DS3, OC3, OC12 and OC48.

·         Provisioning for MSC, BSC and RNC for Nortel, Ericsson and NSN

·         Full working knowledge of AT&T/Ericsson MOPs, and configurations templates VC mapping, QoS Parameters, ATM and IMA Group configurations, Traffic Descriptors, and implementation documentation.

·         Understands Ericsson TND, Nortel CIQ, Engineering Design Package (EDP) from ATT for MSN (Tellabs and ALU boxes) and DACS (Tellabs).

·         Extensive knowledge in commissioning and integration IuB, IuCS, IuPS and IuR UMTS transport network between various wireless and wireline nodes.

·         Possess full working knowledge of the Tellabs 8860 and ALU 7670 RSP/ESE system and 5620 Network Manager to configure North American wireless transport backhaul.

·         Generated CLI Scripts to perform Tellabs 8860 MSN provisioning for Site Add, T1 Add, IUB Mismatch, and Physical Rebalance Node-B re-home configurations.

·         Understands RAN Topology, Access Transport (ATM) Aggregation Strategy, Physical Port layout and connections between various wireless and wireline nodes.

·         Helped teams to perform network optimization and network performance audits.

·         Ability to solve complex problems that require substantial analysis and investigation related to network and system performance.

 

AT&T, Richardson, TX                                                                                         Aug 2007 – Aug 2009

Sr. Quality Testing Engineer

 

Responsibilities:

·         Special testing VoIP, IPTV, Data and Wireless 3G.

·         Developed test beds, test plan, test procedures, test cases (include TL1, NBI), MOPs, ATP and new features base on documentation customer requirements.

·         Create / Maintain & review various functional test scripts for Set Top box UI, Backend / Web services testing.

·         Hand on STB testing with Motorola, Cisco model

·         Understanding of common protocols, e.g. LDAP, SMTP, DNS, Routing Protocols.

·         Review business and functional requirements and wire frames for consumer facing eCommerce Web site.

·         Creating and review test plan, test cases, conditions and/or scenarios. Report test outcomes by collecting, analyzing, summarizing and displaying data recommending software change and documenting test results in quality center. Fulfilling quality assurance role throughout a full product life cycle.

·         Working with team member in resolving problems and completing projects.

·         Work with development team to drive all defects and design changes from discovery or inception to resolution.

·         Testing with different network provider as Ericsson, Alcatel- Lucent and Tellabs for FTTP, FTTC, FTTN, FTTGP and GPON.

·         ALU FTTN 7330, 7340, 7342, BPON, GPON, Light Speed IP Routing 7450, 7750, Ericsson BLM 1500 (EDA 1500, EDA 1200)

·         Develop UAT test plan and test execution for IP Service Assurance and Analysis of Connection with test modules support IPTV, CVoIP, FTTx, iNID Bonded Pair, IPDSLAM in quality Center (QC) Writing defects in QC and PR in Vantive, keep track problem reports and working with development to fix problem.

·         Experienced in call processing, SIP messages, SIP call control, (P-CSCF, I-CSCF, S-CSCF) Media Handling protocol included Register, Adhoc call, Adhoc group call, pre-arrange group call, Talk burst message, ...

·         Hands on and in depth know-how of IMS architecture, SIP protocol, HTTP, SIP, DNS, LDAP, Diameter, Streaming Protocols, RTP, RTCP, XCAP/XML, and TCP/UDP/IP, SNMP Management.

·         Experienced SoftSwitch testing, hands on testing with CVoIP, VoATM, Voice networks using H.323, and voice response systems (T1/E1, SNMP) and deploys automated test voice products (SS7, ISDN, VGW, MGCP, GWC, H.248, AIN, Cisco).

 

Tellabs Inc, Dallas, TX                                                                                        Sep 2001 - May 2007

Sr. System Integration Tester

 

Responsibilities:

·         Experienced products CDMA, GSM, 3G-UMTS.

·         Understanding UMTS layer 2 switching concepts and layer3 IP routing protocols.

·         Create / Maintain & review various functional test scripts for Set Top box UI, Backend / Web services testing

·         Knowledge tool Veriware for testing WIFI validates upstream and downstream to test performance.

·         Experience in analyzing and troubleshooting UMTS transport network and performance issues.

·         Working knowledge on ATM, IP and Transport connectivity such as T1, DS3, OC3, OC12 and OC48 able to interpreted Ericsson TND, Nortel CIQ,

·         Knowledge from ATT for MSN (Tellabs and ALU boxes) and DACS (Tellabs).

·         Understanding integration IuB, IuCS, IuPS and IuR UMTS transport network between various wireless and wireline nodes.

·         Working knowledge on transport design and integration of the Alcatel 7670 RSP-ESE / Tellabs 8600/8860 and DACS products

·         Experienced on system Domestic (North America) and International broadband (OC3c, OC12c, IMA, SONET) and narrowband (T1/E1, T3, DS3, T1HD) DLC with GigE uplink, setup system test run call GR-303, TR-08 and TR-57 include voice, data and Video for VDSL2+, ADSL2+ with IPTV solution, IP network solution. Experienced with system FTTP, FTTC and FTTH for GPON, BPON and ONTs (SFU, MDU) to testing triple play solution for voice, data and video for data downstream up to Gigabit per second and HDTV.

·         Experienced in call processing, SIP messages, SIP call control, (P-CSCF, I-CSCF, S-CSCF) Media Handling protocol included Register, Adhoc call, Adhoc group call, pre-arrange group call, Talk burst message.

·         Hand on and in depth know-how of IMS architecture, SIP protocol, HTTP, SIP, DNS, LDAP, Diameter, Streaming Protocols, RTP, RTCP, XCAP/XML, and TCP/UDP/IP, SNMP Management.

·         Experienced EMS GUI to provision, configuration and writing with Test Design Specification and Test Cases Specification for installation operation system Testing Voice Gateway, SIP, VoIP, Performance monitor, NBI, TL1 command.

·         Experienced in testing tool download software, uploads the executables to hardware card, and configures the systems; providing failure analysis and correct failure related test data (Data.log, System.log, statistical, performance).

·         Interacted with Software Development team when receive problems or tracking problems. Keep team informed about any problems seen while testing, drive test tool (TEMS).

·         Experienced Switch testing, hands on testing with VoIP, VoATM, Voice networks using H.323, and voice response systems (T1/E1, SNMP) and deploys automated test voice products (SS7, ISDN, VGW, MGCP, GWC, H.248, AIN, Cisco).

·         Experience with test tool as Qc (Quality center), QTP, ClearQuest to create test cases

 

DSET Inc, Plano, TX                                                                                                        Jul 1999 - Aug 2001

Sr. System Integration Tester

 

Responsibilities:

·         Develop system test plan, test procedures, test cases, Install software applications

·         Experience with test tool as Qc (Quality center), QTP, ClearQuest to create test cases

·         Customer support for system I-LSMS and LSMS, setup network testing from customer Care from I-LSMS to STP.

·         Developed UAT test plan, test procedures/scripts, test verification (automation and manual) based on test requirements extracted from hardware and software functional specifications, and product required documents.

·         Developed C/UNIX for coding, debugging, and testing (SUN, HP 9000/3070). Working knowledge of LabView, LabWindow environment.

·         Experienced SoftSwitch testing hands on testing, voice response systems (T1/E1, SNMP) and deploys automated test voice products (SS7, ISDN, VGW).

 

Alcatel-Lucent, Plano, TX                                                                                  Mar 1997 - Jul 1999

Sr. System Integration Tester

 

Responsibilities:

·         Experienced developing test procedures, test cases, debug, Y2k compliance and install software for operation system (SUN OS and Solaris 5.1), Communication Platform for SCP Megahub, Next Generation SCP. Working on Tandem SCP/HLR and SMSC for installation and testing protocol, TCAP Performance, MML, short messages, IS-41C package. Integration and test of large high level software, automated using TAPI, Test Expert in SUN workstation.

·         Worked on system ATM, Frame Relay.

·         Worked on OC-3, M1:3 multiplex with 28 DS-1 and DS-3. Experienced in Digital Loop Carriers (DLC), PBX, T-1 Multiplex, Route, Network.

·         Integration and test a large Software/Network Management Systems, testing of Switching Systems and Network Protocols (SS7, TCP/IP, ISDN, SONET) Worked as both an individual contributor and as part of -disciplinary teams.

·         Excellent communication skill and flexibility in job assignments.

 

Networks Engineering, Dallas, TX                                                        Jan 1995 - Mar 1997

Sr. System Engineer

 

Responsibilities:

·         Contractor for NORTEL on PCS 1900 (GSM), CDMA systems operations and maintenance include BSC/TCU, BSM operations, loading, and diagnostic testing.

·         Testing, BTS loading, BTS system configurations and OMC-R applications.

·         Coordinated network expansions and communications upgrades.

Performed software installations on routes, bridges, and maintained integrity of network.