Test Engineer Resume

CAREER OBJECTIVE:

A technical position in Telecommunications where I can best contribute to the goals and objectives of the company through my extensive work experience and educational background.

SUMMARY:

9+ years in telecommunications with most recently Confidential 5G/LTE modem testing/verification, Confidential RAN products (UMTS/LTE) FOA, NSN RAN integration/support; Extensive knowledge of 3GPP, network architecture/interfaces, and protocols stack, 2G/3G/LTE, LTE - A, EPC, IMS; Strong knowledge/experiences in testing, analyzing and troubleshooting protocols/procedures, call flows, NAS, RRC, PDCP, RLC, MAC, PHY procedures, GTP, Diameter, SIP, RTP; Test case design, execution, documentation, maintenance, improvement, setup, lab/field test; Hands on experiences in wireless modem/device testing, Confidential IOT/M2M devices, debugging, troubleshooting, Confidential tools: STT, Flash/Phone tool, connection manager, Confidential commands, UTP bug tracking; Hands on experiences in testing tool for log collection and analysis, including QXDM/QPST, TEMS, Wireshark, Keysight Spectrum Analyzer, I-Perf, TcpDump, UE-Control, etc. Strong knowledge and experiences in Unix/Linux/Windows, Python/Bash scripting, test automation, C#, Object Oriented programming, MCAD in ASP.NET/C#/Windows programming

WORKING EXPERIENCE:

Confidential

Test Engineer

Responsibilities:

Working in Confidential scaling team for 5G modem (MTP-Mobile Trial Platform) testing;
Performing interoperability test between 5G EnodeB and MTP to do end to end throughput test, including RF tune up using spectrum analyzer, Confidential TVA script, attenuator, Antenna beam verification, verifying with L1/L2/L3 traffic and KPIs (RSSI, BLER, PDCCH, PDSCH, MCS, RI, etc); Working with vendors/clients and R&D for troubleshooting, lab/field trials
Troubleshooting RF issues of BB/IFB/RRH, network routing during test setup, eNB bootup
Performing automated MTP sanity test with python script
Supporting GRX ( Confidential CPE) configuration for remote control trials;

Confidential

Field Test Engineer, Dallas

Responsibilities:

Confidential M2M 7160/7260 modem testing per firmware and operators, NAS/RRC/IMS/SIP messages analysis, registration, CS, PS, SMS, Handovers, CSFB, Volte, SRVCC, call supplementary features, etc;
Trace and capture logs with STT, Confidential commands, Wireshark, L3 analysis, crash analysis, UTP bug tracking tool, working closely with R&D for troubleshooting and verification; Perform RVT, SIT, KPI, Regression, TS11, GFIT, DFIT, NVIOT tests;
Use daily Confidential CLA test automation tool, test scripts debugging, log analysis, reporting;
Use Python, Cygwin, C# for test automation, test tool development;
Travel to do on-site field test, customer issue investigation and troubleshooting;

NPI Engineer

Confidential

Responsibilities:

Introducing new Confidential LTE/WCDMA hardware/software RAN products to major North America wireless carriers by performing lab and field testing, feature/system updates verification, pre/post launching activities, KPI monitoring/investigation;
Regression/Feature testing of WCDMA/LTE products, responsible for lab setup per test cases, L3 messages&logs analysis/verification/troubleshooting;
Test case design per new release, document and implementation, lab/field verifications, final acceptance, status reporting, KPI impact analysis/verification, baseline preparation,
Golden standards recommendations; Test with Confidential Moshell commands/scripts, OSS, QXDM/QPST, I-Perf, TcpDump, Wireshark, Spectrum Analyzer, RF attenuator, lab/field test of Confidential ENodeB, RBS (DUL, DUW), RNC; MOP creation, field test route/site selection, MW activities, drive testing, KPI Report auto-generation tool development with C#

GNIC Engineer

Confidential

Responsibilities:

Monitoring IMS network by using Citrix tool and @ Confidential Commander; Hourly checking network elements including One-NDS, CSCF, HSS, AAA, for any KPI alerts or alarms;
Dumping log data of AAA server and generating KPI diagrams of interfaces (S6b/STa/SWx); Checking HSS health status by running scripts, and tracing diameter connection failures; Running first hand analysis for data collected, and sending reports to customers and NSN Care team;

NSN GNIC Engineer

Confidential

Responsibilities:

Modifying ATM COCO data for Iub interface of Confidential 3G RAN, in both RNCs and NodeBs via NSN NetAct tool; Using CM, Unix scripts and Excel to generate, validate and troubleshoot XML based Configuration Plans;
Auditing and troubleshooting COCO of RAN and WBTS using tools like NetAct, Citrix, BTS-Manager etc

Technical Consultant

Confidential

Responsibilities:

RG10 Memory upgrade project for Confidential & Confidential RAN network; System health checks and troubleshooting with HIT and MML, system safecopy, O&M/LB configuration and backup, fault unit diagnose, and acceptance test;

Technical Consultant

Confidential

Responsibilities:

O&M/LB unit commissioning/integration in Confidential BSC3i/2i, VLAN configuration, cutover, on-site support, troubleshooting, system maintenance/monitoring with OSS: log collection, alarm handling, US, 4/2008 ~ 1/2009

Technical Consultant

Confidential

Responsibilities:

Working for MSC/VLR Expansion project for Confidential DX200 system, including cabling, system inspection and health check, hardware/software configurations, testing and troubleshooting.

NSS Engineer

Confidential

Responsibilities:

Technical support and troubleshooting
MSC commissioning, integration, system test, hardware change and software upgrade;

Product Support and Verification Engineer

Confidential, UT

Responsibilities:

Performed commissioning, integration and O&M for V5.2 based UT AN2000 access network and OMUX (PDH transmission product);
System Testing/troubleshooting of LE-AN interface by tracking V5 signaling messages on INET Signaling Analyzer;
V5 network management project including installation and configurations of Cisco switches and bridges;

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