Corning Incorporated

End to end validation of 5G NSA and SA gNBs and LTE eNBs

Integration, Interoperability testing deployment E2E Cores (5G Core —>Druid Raemis and 4G Core —> Aricent) with Corning Small Cell LTE, 5G C-Band and 5G mmWave solutions. 

System Automation scripting using Bash, Python, TCL, Expect.

ADB automation scripting.

Tools including protocol analyzers, XCAL - QXDM - XCAP - QCAT - PCAT, Wireshark, Channel Emulator, Spectrum Analyzers, Signal Generator.

5G System Validation Test Engineer

Development of product validation, feature validation, systems and performance analysis for 5G (Sub6 and mmW) products

• Development and system integration for 5G (Sub6 and mmW) products focusing on Air interface, E2E performance, and Call Processing.

• Defining system test cases and automation execution to ensure product meets product and system requirements for customer deployment.

• Quality Assurance (QA) testing, analyzing test results, debugging failures and working closely with the development team to identify root causes and resolve problems.

• System (SW+HW) characterization and validating product specifications by collecting and processing test data

• Interoperability testing with RAN an core network vendors as part of carrier certification and customer acceptance procedures

Quality Assurance Engineer

F2G Solutions Inc (Far Together)

• EPC core architecture (eNodeB, MME, S-GW, P-GW, HSS) network elements, and interfaces.
•5GNR NSA and SA (gNodeB, AMF, UPF)
•LTE, 3GPP and ETSI standards, LTE interface (GTP-u, S1AP, X2AP, GTPV2, DIAMETER, SIP) functionality.
•5G, 3GPP and ETSI standards, LTE interface (GTP-U, NGAP, XnAP, HTTP2, SIP) functionality
•Protocol stack (PHY, MAC, RRC, RLC, PDCP layers), Frame structure and Multiple Access technology (OFDMA, TDMA, CDMA, FDMA) 
•UE and Radio antenna technologies
•Extensive knowledge on Nokia hardware including LTE eNBs, 5G gNBs, WCDMA NBs, TDD and FDD radios
•Experience on Unlicensed and private bands spectrum: LAA (Band46) & CBRS(Band48).
• LTE /5G NR fundamentals such as 5G Numerologies, Carrier aggregation, Beamforming, mmWave / sub6G, massive MIMO.  
•Hands on experience with testing tools like QXDM, QUTS, PCAT, QCAT, BTSlog
•	Experience with log analysis and debugging tools such wireshark, QCAT, Emil, BTSlog
•Basic knowledge on 5G ORAN, ORAN architecture, ORAN interfaces (eCPRI, F1, E2, A1, O1)
•Good knowledge of IMS core technology and protocol for VoIP network like SIP, DIAMETER, P-CSCF, I-CSCF, TAS
•Knowledgeable on Multi-RAT dual connectivity technologies (ENDC, NGENDC, NEDC, NR-NRDC) 
•Good understanding of measurement events (A1, A2, A3, A4, A5, A6, B1, B2)
•Default EPS Bearer and Dedicated EPS bearer with their QCI and 5QI
•Knowledge on Throughput boosting features (UL TCP Boost, Carrier Aggregation, MIMO, Modulation, Transmission mode) and Power saving features (Power saving mode, DRX, SDRX, cDRX, eDRX).
•Experience in NB-IOT, CAT-1, CAT-M, CAT-4 UE devices.
•Technical expertise with auxiliary lab equipment: power supply, spectrum analyzer, signal generator
•Provided training to team members on new features/test equipment as needed by consulting, supporting and guiding team members and vendors employees. 
•Preparation of competence development plan for newly hired test engineer at F2G Solutions.

4G & 5G System Interoperability Engineer

Nokia

•	Planned and performed test cases including reviews/analysis of feature specifications in a well consolidated test plan of 300+ test cases from a range of 3000+ cases: registration, mobility (handovers, reselections, redirections), carrier aggregation, Call processing (VoLTE, VoNR, ViLTE, ViNR, CFSB, EPS Fallback, SRVCC, e911), CMAS, TTI Bundling, SMS, and other radio and UE features from Rel8 -Rel15, performed on TMO, ATT and Verizon (Low, Mid and High) bands in the Nokia Lab in a timely manner.  
•	Worked on Test specification: creating/updating/reviewing test documents (test plans, test cases, test reports, feature specification, instructions) using Nokia documentation and 3GPP.
•	Installed, commissioned, and integrated gNB, eNB, NB in IOT lab environment.
•	Worked on interoperability between LTE and WCDMA and LTE and 5G NR (NSA). 
•	Optimized field network radio parameters (thresholds, offsets, hysteresis) with respect with field KPIs (RSRP, RSRQ, SINR, RSSI) for smooth continuity in the clusters under testing.
•	Investigated, explained, and reported UE or Network faults which includes cooperation with other teams.
•	Analyzed logs and troubleshooted problems from the field and customer lab based on 3GPP and Nokia documentation.
•	Performed OAM on Nokia RAN, Maintained Lab equipment and software, upgrading NEs, upgrading BTS software versions (SBTS20A - SBTS22R3) and building/expanding of workstations & 5G gNB/ LTE eNBs as needed. Built /expanded of workstations & gNB/ eNBs as needed with additional Baseband Units (ABIA, ASIA, ASIK, ABIL) and additional Radios Modules (AHIB, ARZB, AHFB, UHBA, AHLOA, FRIJ, AZRA).
•	Familiarized with the tools, processes and methods used by Nokia and clients: Qualcomm Package Manager (QXDM, QCAT, PCAT, QPST, QMI Test Pro), Wireshark, EMIL, BTS counters. 
•	Performed data throughput(TCP /UDP) cases adjusting iperf2/3 server and listener commands, troubleshooting network software or RF issues if needed to delete the BLER.

Kennesaw State University

•	Responsible for students undergoing STEM Majors with course difficulties (electronics, calculus, physics, data communication, test engineering, chemistry, electric machines, senior design capstone)
•	Reviewed Course work and assisted in lab preparations, components assembly and lab results documentation.
•	Assisted students in end of semester project, circuit diagram designing, reviewed student code (C, C++, Python 3) and printing circuit boards.

Peer Mentoring Center Tutor

Orange Cameroun

•	Integrated Nokia radios (FlexiWBTS, Airscale) for 2G GSM (900MHz),3G UMTS(B1/2100MHz), 4G LTE(B3/1800MHz) and baseband modules. 
•	Performed Single site verification, drive testing and cluster drive testing and log collections for network optimization while monitoring the KPIs (RSCP, Ec/No, RSSI, CPICH). 
•	Collected logs from Hard and soft Handovers with long and short calls, SMS, registrations, throughput performance, and Inter-RAT Handover (LTE -WCDMA, LTE-GSM and WCDMA-GSM).
•	Internet configuration on UE and setting of appropriate APN. 
•	Circuit Switch domain and Packet switch domain

Intern

Kribi Power Development Company S.A.

Summer Intern

Electrical development Corporation 

My career goal is to apply my technical knowledge to the field along with my creativity in order to provide real and affordable solutions to persons in need.


Bilingual: English and French

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