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David M.DM

David M.

3G4G5G Modem & Network Troubleshooting Specialist

€630/day
Neuilly-sur-Seine, FR
15+ years

Average response time: 1 hour

About David

Long experience in the mobile industry with chipmaker (Qualcomm), infrastructure vendors (Nokia, Nortel) and mobile network operators (Optimus, Orange, Bouygues)
Solid exposure to modem and RAN validation across 3G, 4G, CAT-M and 5GNR networks
Extensive experience in cellular modem debugging and RAN troubleshooting (Ericsson/Huawei)
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Bouygues Telecom
    Cellular Radio Expert - Freelance
    TELECOMMUNICATIONS
    March 2022 - Today (4 years and 3 months)
    Vélizy-Villacoublay, France
    • Provide technical support to the internal organisation for escalated issues related to radio site deployment/densification, RAT/band/RF addition, radio infrastructure replacement, local/mass optimisation, and VIP/customer complaint
    • Optimise and improve radio KPI across 3G/4G/5GNR technologies on Ericsson and Huawei infrastructures
    • Conduct in-depth investigations on radio failures and issues using 3GPP Technical Specifications, KPI, modem/network protocol traces and network monitoring tool such as EXFO
    • Produce investigation and solution report for continuous process improvement and troubleshooting guidelines update
    • Involved in the Network Monitoring and Performance solution RFP
    • Involved in the design of the new Monitoring Environment and Anomaly Detection (MEAD) product
    Ericsson OMC Huawei OMC Call Trace EXFO KPI 3GPP 3G 4G 5GNR rno
  • Wilab.Tech
    Cellular Modem and Network Testing Specialist
    TELECOMMUNICATIONS
    November 2018 - March 2022 (3 years and 4 months)
    Paris Area, France
    • Produce Product Handling report
    • Validate advanced and IoT cellular technology/modem/module across 2G, 3G, 4G, 5GNR, CAT-M and NB networks
    • Perform field testing and evaluation of a broad range of 2G/CAT-M1 cellular trackers and DECT ULE smart home products
    • Deploy and evaluate indoor geolocation UWB/BLE based systems such as Ubisense, BeSpoon and Wirepass
    • Perform field testing and collect debugging logs
    • Conduct in-depth investigations on radio failures and issues based on modem protocol traces
    • Evaluate geolocation product performance against GNSS simulator
    • Develop test strategy and test plan (cellular, GNSS, DECT ULE)
    • Long experience with Orange, SFR and Bouygues Telecom networks; GCF and carrier product acceptance and testing of modems/modules from Qualcomm, MediaTek, Sequans, Sony/Alair, Ublox, Nordic, Thales/Cinterion, Sierra Wireless, STM, Quectel and Murata.
    Qualcomm Mediatek Nordic Altair Sequans Ublox Murata Sierra Wireless Cinterion Orolia GSG56 Ubisense BeSpoon Wirepass 3GPP 2G 3G 4G 5GNR LTE CAT-M NB-IOT Abeeway Ercogener Quectel AT command PSM eDRX Qoitech Battery Profiler Huawei Nimbelink Queclink Accent Concox Bewhere DECT UL BLE UWB Tracker Smartphone IMS GCF GSMA unisoc stm development kit
  • ORANGE
    Cellular Modem Certification Manager - Freelance
    TELECOMMUNICATIONS
    March 2010 - March 2018 (8 years and 1 month)
    Paris, France
    • Manager testing/certification of advanced cellular modem developed by Qualcomm, Motorola, MediaTek, Spreadtrum/Unisoc, ST-Ericsson, Ericsson, Intel, Broadcom, Marvell, Renesas, GCT, Sequans and Altair
    2G 3G 4G 5GNR modem 3GPP SoC Application Processor

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Education

  • Master2 Information and cabled video communication networks
    University of Méditerranée, France
    1997
  • Master Physics and applications
    University of Méditerranée, France
    1996

Skill set (77)

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