Engineer Technical Support
Resume:
JOSEPH V. NGUYEN
Plano, Texas *5094
Email: ***************@*****.***
U.S. Citizen
OBJECTIVE Seeking a challenging Systems/RF/Test/QA/Field/Technical Support
Engineer position in Telecommunication and Network Systems to utilize
knowledge gained from work with special interest in RF, UMTS, 3G/4G,
LTE, VoLTE Soft Switch, VoIP/SIP, IMS.
EDUCATION THE UNIVERSITY OF IOWA, Iowa City, Iowa
B.S.E.E., Electrical Engineering, May 1992.
COMPUTER C/C++, UNIX, Linux, SQL, Java, VHDL/Synopsis, Labview, MatLab,
SKILLS MS Windows (Excel, PowerPoint, Piviot, SharePoint), PCAD
WORK EXPERIENCES
3/2005 – Present Alcatel-Lucent, Plano, Texas
Network Integrations/Testing and Deployment Engineer
• Responsible for defining, scheduling, development maintenance, and
custom release based on major feature releases, plus specifications for
changes/additions/solutions for new and existing products based on
customer feedback.
• Contribute and work closely with the sales team (Pre/Post-Sales),
coordinate/schedule/track engineering tasks, keep customer informed
of progress/changes to schedule; and provide technical support to
customers at installation of new features.
• Contribute and work closely with customers, NOC, TAC, and technical
teams by providing architecture, promotion packages, system
specification documentation for the E2E requirements and road map
information related to products covered by the role.
• Developed test beds, test plan, test procedures/scripts, test cases,
regression test, MOPs, GUI, UAT/ATP, Client/Server Web Application,
Microsoft Active Directory, DNS, Microsoft Exchange 10 & 12, API,
SDLC, HP Quality Center, HP/Mercury Suite, QC/ALM, Test Director,
Spirent Test Center based on test requirements extracted from
hardware and software functional specifications, and product required
documents.
• Developing test plan, test case, internal and external review, MOP.
• Configuration, network communication, planning, documenting,
testing, customer relations, and troubleshooting by using test tools and
instruments to verify problems.
• Working on MGCF/MSC(5620/5060 included with MGC & SG and
interface with 7540/7549(G9) MGW, CS2K and C20)
• Working on IMS architecture and lab setup to configure and
provision to P/S/I-CSCF, HSS, AAA, ENUM/DNS, IP/Access Network.
• Optimize VoLTE/ LTE / UMTS / EDGE / CDMA/ GSM
• Working on Layer 2, 3 switch to develop the metrics and support
NOC integration.
• Working on Cisco IP Switch and Router (Cisco IOS, BGP, MPLS,…)
to configure IP network, Spanning Tree and load balancing to
supporting and troubleshooting based on CIQ to designs and
implements in LAN/WAN wireless networks and ALU 7705/7750.
VoLTE, VoIP, SIP and IMS
• Working with LTE core system interfaces and protocols (S1-MME,
e-nodeB, SGSN, PGW, SGW, SBC, SR, Cx, NAS, S1-AP, RRC, GTP-
U, SGs-AP, TCP/IP, SDP, XML, NAT).
• Performing KPI to evaluate/optimize by drive test to identify
problem of LTE, UMTS, WCDMA and GSM networks.
• Working on IOT (Interoperability Test) from Wireless networks to
manage network End to End, treating voice and data together by using
Nethawk Analyser, Wireshark, Tektronics K15/12 equipments for Call
Processing, Handover, and LTE/WCDMA/GSM/UMTS/GPRS (A/Abis,
Gb, Gn, Iur, Iub, UTRAN, RNC, NodeB/eNodeB, RANAP, NBAP,
RANSAP, Iu-CS, Iu-PS) for simulation, emulation, and monitoring data
& signaling.
• Experiencing on tools setup for signaling and simulation as Anite,
HP, Anritsu, HP network analyzer, Adtran400, Tektronic 1205/15/12,
Nethawk (2G and 3G), Wireshark, TEMS.
• Working on IMS, VoIP/SIP, VoLTE, network connectivity and call
handling to interoperated (IOT).
• Experienced SoftSwitch, Broadsoft testing, hands on testing with
VoIP, VoATM, Voice networks using H.323, and voice response
systems (T1/E1, SNMP, Codec G.711, G.729) and deploys automated
test voice products (SS7, CAS, BRI, ISDN, DTMF, VGW, MGCP, SCCP,
GWC, H.248, Cisco).
• Experienced in call processing, Node B, RNC, SIP messages, SIP call
control, 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, IPv4, SNMP Management.
• Knowledge on UNIX, SUN OS, HP, Granite, ClearCase and ClearQuest
CR report, Remedy, Granite, JIRA.
• Excellent communications and flexible on job assignments.
09/2001 – 03/2005 Network International Inc., San Diego, CA
RF Testing Engineer
• Worked on GSM, UMTS, CDMA/WCDMA to exposure to
radiofrequency (RF) emissions from network base station, microwave,
and related radio access equipment.
• Developed Test strategies and production test plans, define test
specifications, test fixtures, test interfaces, functional test, final test, and
diagnostic programs.
• Worked with variety of RF test platforms, RF test methods,
calibrations, measurements with test equipment and technical analysis
of systems
• MOPs executed integration plans, troubleshoot network problems
and escalate quality issues as needed
• Constructs, troubleshoots, calibrates, adjusts, tests, and maintains
equipment, components, devices, or high level systems.
• Proficient with test equipment including RF sources, pulse
generators, spectrum analyzers, oscilloscopes, Agilent PNA, vector
network analyzers, power meters, power supplies, and digital multi-
meters.
• Tested includes s-parameters, noise figure, power, pulsed power,
TOI, and harmonics.
• Used Wireless Logix XCAL, TEMS, Agilent, INVEX, Datapro and
data collection software
• Performed RF network troubleshooting and optimization activities
for GSM/UMTS/CDMA/WCDMA network
• Implemented GSM/UMTS/CDMA/WCDMA optimization/acceptance
plan, sponsor best practices, assess and escalate system issues to
RAN, Core, Data design teams.
• Network performance improvement (KPIs) and optimization tasks.
• Acknowledge on Remedy, Granite, Metrica, NetExpert.
• Excellent communications and flexible on job assignments.
SPECIAL ISDN, SS7, SONET, ATM, WCDMA, NETWORK, VoIP, DATA
TRAINING WIMAX, IMS, TCP/IP, RF Optimize/Design, ALU 7705/7750 routers, Cisco
Switch and Router (Catalyst, IOS and ASR), NEXUS 7K.
REFERENCES Furnished upon request.
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