Test Engineer Application
Resume:
Syed Hussain
********@*****.***
San Diego, CA
linkedin.com/in/syed-hussain-4a0b0341
Professional Summary
•Senior Test Engineer with extensive experience in System Integration, Validation, Performance, Functional, Product, and Device Testing in the mobile/wireless space and satellite communications.
•Expert in System and Acceptance Testing based on 3GPP and 3GPP2 standards and Verizon Test Plans.
•Seeking to continue building testing expertise in the field of 4G/5G technology, including RF, 5G O-RAN and disaggregated networks.
Technical Skills & Tools:
•Microsoft Office, UNIX, Perl, Python, Jira.
•Testing/Analysis: Wireshark, Sparx, iPerf, Keysight, Anritsu system, CMX, IT3 Comprion, Rohde and Schwarz cmw500, QXDM, QPST, QCAT, Spirent, ADB (Android), viavi UE Simulator TM500, Data base management.
Professional Experience
TCS/Apple Cupertino – San Jose June 2024 to Dec 2024
•Performance testing on iphone 15, iphone14 on Rohde and schwarz and for US carriers like T-mobile, VZW, AT & T.
•Run throughput on Keysight C8700200A 5G NR and check max throughput for different nsa combinations supported by carriers using iphone15 pro.
•Create Test plan and run OTA Testing on CMX500. Validate nsa and sa calls on different combinations to support carriers.
•Analyze logs for pass and fail test cases. Coordinate with RNS Application Engineer for upgrades to cmx500.
•Performed cmx500 upgrade to OBT compact system.
•Worked on KS DC power analyzer to generate voltage and current samples.
Viavi Solutions – Louisville, CO Mar 2023 to June 2023
Application Engineer – 5G O-RAN
•Work closely with VIAVI Solutions Wireless Engineering and Product Management teams, acting as an interface between the client and VIAVI.
•Logging, investigation, and resolution of issues related to VIAVI Solutions Wireless test and emulation equipment.
•Undertake Systems Engineering, debugging and diagnosis of issues on hardware and cloud-based platforms.
•Test case creation/editing.
•Running and modifying test cases based on results for Stage 2 and 3 to support Capgemini and GXC. This includes 5G SA end-to-end data performance in U/L, D/L and bi-directional throughput from UE to Core.
•Analyzing test results (logs) for metrics. Capture PCAP and analyse in control plane and user plane on Wireshark. M-plane and S-plane.
•Deep analysis of TM500 UE logs, 5G call processing protocol logs to find issues during testing and compare with O-RAN specs.
•TM500, TeraVM debugging – how to collect information to debug the failed test cases on TM500 +/ TeraVM.
•Gained knowledge of O-RAN components like RU, DU, and CU; Front haul, F1 interface, Xn interface, split functions, core Network functions; M-Plane, S-Plane, NETCONF.
Intel Inc – Hillsboro, OR Aug 2022 to March 2023
System Integration and Test – 5G O-RAN
•Install system images from the ground to setup Kubectl, CaaS, Helm, Docker and Image registry.
•CentOS Installation, network configuration SR-IOV, PTP Configuration, Couchbase Installation and Create Kubernetes cluster.
•Install monitoring subsystem Prometheus and Grafana.
•Install CRDL DB by pull, tag and push using docker commands.
•Install CIL – Cloud Native architecture.
•Install OMS and 5GC components, KSYNC, UDSF, AMF, SMF, NSSF, PCF, NRF, and AUSF.
•Bring up system Nodes, P9 controller, OMS, 5G core network elements (AMF, SMF, UPF, NSSF etc.)
•Provision UE (UDM and UDR). Install RRU images. Install RAN and bring up CUCP, CUUP, DU and L1.
•Attach to 5G and run performance on n78- 5G band for multiple UEs and many DUs using iPerf for D/L, U/L and bi-directional data for UDP and TCP.
•Flash daily builds on P9 for L1, CU-CP, CU-UP and DU using docker commands and bring up all ran elements.
•Monitor logs using Sparx tool, take tcpdump from containers. Analyze in Wireshark. Analyze logs for 5G call processing.
•Gained knowledge on Viavi products like TM500 and TeraVM.
Inseego Corp – San Diego, CA Oct 2018 to Oct 2022
Staff Software RF Test Engineer
•Lab testing for LTE and 5G hotspots for Verizon, AT&T, TMO and USCC.
•Support Conformance Testing at third party labs for Inseego 4G/5G products and IoT testing at Nokia and Ericsson labs.
•Lab testing on Keysight for mmWave (LTE+8 NR) and sub6. Configure and attach on Keysight and run performance tests using iPerf to achieve high THPUT D/L, U/L, TCP, UDP, bi-directional and Wi-Fi.
•Lab testing on LTE RF, LTE Protocol, LTE Data THPUT, UICC, ca combos on Rohde and Schwarz.
•Flash devices using QFIL tool, config pro tool, attach to 5G, call processing for 4G/5G. Remote flash all devices to support third party labs.
•Capture UE capability messages to find what LTE, 5G bands device supports by running any 3GPP test case. • Run LTE Data throughput using Keysight on 3 cc and 4 cc combos for 4G devices with MIMO capability. Configure Keysight for each cell and run THPUT using iPerf, WiFi THPUT put and USB. Configure WebUI.
•Analyze QXDM logs at physical layer for call processing on 4G/5G for attach, UE capability, band combos, 5G stack, finding 5G cell, beam assignment/measurement, RS.
•Device supports NSA and SA. Use ADB commands, reboot, logcat, write IMIE, NV items, QRCT tool.
•Device use QUALCOMM chipsets sdx50 and sdx55, sdx65 for mm wave and sub-6.
•Configure and run 5G protocol test cases 3GPP 38.523-1 using ME7834. Modify Pics.
•Configure and run 5G RF 3GPP TS 38.521-1 (fr1 and fr2) using ME7873 -NR and MT8000A for different band combinations supported by device for 4G/5G hotspot on Anritsu system. Tests run manually and using automation. Run similar tests for standalone 5G.
•Collect logs both device and system. Analyze failures. Open Jira tickets. Generate reports.
•Find bugs, follow up and triage of bugs. Follow up with bug fixes with various teams and close the bugs with validation and logical conclusions.
Sprint Nexus – Los Angeles, CA Dec 2017 to Oct 2018
VoLTE Test Engineer
•Ensuring VoLTE & LTE call flows compliant to 3GPP specifications on Samsung S8+.
•Device logs using DM. PCAP logs on Wireshark.
•Documenting clearly & accurately and escalating the discrepancies, anomalies or issues with the test case.
•Testing & analyzing telephony voice services such as call waiting, call barring, 3-way calling, etc.
•Testing & analyzing proper operation with landline (PSTN) & (Mobile networks) PLMN.
•Testing & analyzing the voice quality of the voice services such as CDMA, VoLTE, VoWiFi calling, calling + etc.
•Testing & analyzing proper operation with various 3G and 2.5G networks, various RAN’s, all types of devices.
•Flash devices using Odin tool. Run sanity checks.
Inseego Corp (formerly Novatel Wireless, Inc) – San Diego, CA Aug 2011 to Sep 2017
Senior Systems Test Engineer
•Support GCF/PTCRB certification testing of WWAN products MiFi hotspots and USB dongles.
•Testing includes verification of test plans in LTE Signaling protocol, LTE (RF), RRM tests, on multi CMW500 and UICC (USIM and USAT) using IT3 Comprion. Devices use Qualcomm chipsets like 9x15, 9x25 and 9x45.
•Testing full Verizon test plans LTE Data Throughput, LTE Data retry, LTE IMS retry on Rohde and Schwarz (CMW500) . Validate these test plans on VoLTE device to work on Verizon.
•Executed complete 10776 Test plan for one Inseego device to work on AT&T network.
•Create test plans and run 3GPP LTE RF on different bands, carrier aggregation tests using Rohde and Schwarz to support Verizon requirements using automation.
•Pre-testing at labs in San Diego on different simulators Anite, Rohde and Schwarz and Anritsu before certification testing at third party test labs (SFN and full conformance).
•Generate reports from test results; review each test case run in all technologies.
•Supported lab entry tests at Verizon labs for different mobile hot spots and USB dongles made by Inseego corp.
•Flash devices using config pro & configure devices using QXDM, QPST & set modem parameters using AT commands on HyperTerminal before start of test. Ensure device attaches on LTE call box before running automation for 3GPP and Verizon test plans. Verify all NV items before running tests.
•Validate PICS/PIXIT at Qualcomm lab for 2G/3G/4G to validate protocol conformance testing and run complete LTE protocol tests on layers l1, l2 and l3 at SD lab and conformance labs.
•Pre analysis of failures using QCAT & QXDM. Report issues & logs to developers for further debugging of failures until resolution. Open Jira tickets for failures.
•Run tests at Qualcomm labs after issues are reported to find root cause of failures.
•Attended 5G presentations and seminars from Rohde and Schwarz on LTE advanced features in Release 11, 12 and 13.
Teleca USA Inc – Plano, TX Apr 2011 to Jul 2011
Senior System Test Engineer
•Conducted protocol stack tests for 2G and 3G Android handheld devices for PTCRB and GCF certification using Anite SAS.
•Generated SAS scripts on Anite for all types of call scenarios (MO, MT, MO SMS, MT SMS, FTP upload & download) according to test plan supporting GSM, GPRS, EDGE & UMTS.
•Flash software on Android devices using procedures.
•Analyze and debug any test case failures on both mobile station and Anite system.
•Collect modem logs using ADB and LogCat, DebugMux. For more trouble shooting collect radio & android logs.
•Performed IoT tests on android devices ACCD to test plan. Tests include registration tests, handover tests, feature tests, multiparty call, & roaming tests etc.
Intel Mobile Communications (Infenion) – Allentown, PA Jul 2011 to Mar 2011
Systems Verification Engineer
•Performance testing of Form Factor & DVT boards over AT&T and T-Mobile 3G Networks for voice & data calls.
•Flash baseband & Application process.
•Run checklist for voice & data calls. Run UNIX based automated scripts using MAC.
•Generate excel based reports daily for call performance, crashes, drop calls etc.
•Platform Baseband HSPA+ Stress Rack Regression Testing.
•Configure tools like Artemis (layer-1), Mobile analyzer (layer-2), phone tool, flash tool.
•Flash baseband software using flash tool on devices.
•Perform checklist using Mobile analyzer by running AT commands for registration, trace. Make voice & data calls manually.
•Run UNIX based automated scripts for voice call, data call for uplink & downlink. SMS etc. over AT&T and T-Mobile Network.
•Generate performance reports daily for crashes, resets, call drops, call failures, throughput, MTBF etc. Update Quality center with all reports.
Additional Experience
Qualcomm Inc – San Diego Sr. Engineer – System Integration and Target Test – GERAN/UMTS, Apr 2007 to May 2009
Qualcomm Inc San Diego - Sr. Engineer – Field, Technical Support & System Test – Globalstar Satellite Gateways, Dec 1998 to Apr 2007
(Qualcomm IS-95 CDMA IP based subsystem operating on C, L, and S bands.)
• Integration, test, and field deployment of Qualcomm’s IS-95 CDMA subsystem world-wide for
Globalstar Gateway a commercial low-earth-orbiting satellite system.
• Tested and modified gateway switching system tools like dialing plans, switch configuration, and
Gateway regional database according to site specific configuration. Configured raid for disk
partition.
• Performed SS7 configuration parameters according to site specific configuration and performed
global title translation table for local and roaming subscribers.
• Performed IS-41 Map, A-interface and ISUP link alignment using INET test equipment.
• Installed operating system on GMS1, GMS2, SS7, VIP, etc.
• Software downloads to all gateway subsystems like CCP, NIS, FL Link, REV Link, Disco and SBS.
Upgrades done using patches and performed operational technical procedures.
• Completed system integration tests for external devices like PSTN, HLR, SMS and GSM MSC. Alarm
management for hardware and software issues. Log analysis for failed calls.
• Trained customers on system architecture, installation and operation.
• Tested all types of call scenarios (IS41 and GSM), packet data including feature test.
• Deployed to Brazil, Canada and Clifton, Texas to perform gateway commissioning.
Education
•One year post graduate course at Indian Institute of Technology – Chennai, India. 1982
Avionics and production Technology.
•Bachelor of Engineering (Electronics and Telecommunication)
University of Mysore – Mysore, India . Pass 1980
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