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Mathieu B.MB

Mathieu B.

Electronic Design, IOT, Embedded, Low Power

€650/day
4 projects
Sisteron, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Mathieu

Hello, I am Mathieu Berthod, a passionate and experienced power electronics engineer. With a solid background in electrical engineering and extensive experience as a field application engineer, I specialize in providing advanced technical solutions in the field of power electronics.

My core competence lies in technical support for technologies such as IGBTs, SiC MosFets, drivers, motor control, and AC-DC/DC-DC conversions. I have a strong ability to link customer requirements with cost-effective and efficient solutions, in both design and manufacturing.

I also have in-depth experience in project management, planning, and customer relations, having worked closely with sales teams to manage projects and provide technical and economic feedback. My knowledge of SiC/GaN technologies is particularly in-depth.

I am also proficient in embedded/PC software, with a good command of C/Python, Linux, VHDL, and office tools.

I am dedicated to providing innovative and reliable solutions, with a strong personal commitment to quality and excellence in every project.
  • French

    Native or bilingual

  • English

    Fluent

  • Spanish

    Basic

Remote only
Primarily works remotely

Experience

  • LEXARO COMMERCE FZCO
    Malt logoOn Malt
    Technical Feasibility Audit Report
    August 2025 - August 2025
    Limoges, France
    The audit covered technical analysis (sensor selection, feasibility, clinical accuracy), economic comparison (BOM POC & V0, packaging, certification, factory integration), and industrial structuring (testing, assembly, operator costs, processes).
    The deliverables included audit chapters, cost estimates, and tracking tables (BOM, processes, projected budget).
  • MBHREP
    Electronic Engineering (Self-Employed)
    TECH
    February 2024 - Today (2 years and 4 months)
    Périgueux, France
    As a self-employed consultant at MBHREP, I assist industrial companies and technological SMEs in designing and implementing complex electronic solutions, combining power, embedded systems, wireless communication, and energy management.

    Areas of expertise:
    Design of energy conversion systems:
    - Multi-source MPPT buck/boost boards for hybrid power supplies (solar/mains/battery) up to 1 kW
    - BLDC / PMSM motor controllers up to 5 kW based on IGBTs and SiC with FOC control and safety strategy
    - Study and control of intelligent electronic loads, regulated by DAC
    Development of low-power embedded systems:
    - Ultra-low power wireless sensing systems with periodic wake-up, target battery life of 5 years
    - Embedded architectures around STM32, ESP32 microcontrollers, integrating analog sensors, digitalization, and secure communication
    - Secure OTA updates, firmware encryption, field authentication management
    Integration of RF communications and IoT networks:
    - ESP-NOW, LoRa, BLE, RS485, CAN protocols, in point-to-point, broadcast, or mesh topologies
    - Low-frequency radio networks with dynamic slot allocation, duty-cycle optimization for ERP compliance
    Deployment of edge computing solutions:
    - Embedded data preprocessing: filtering, event detection, automatic recalibration
    Industrialization support & customer support:
    - Management of manufacturing subcontractors (PCB, assembly), DFM/DFA validation, pre-series testing
    - Writing technical documentation, schematics, BOMs, test plans, validation reports (EMC, thermal)
    Advanced customer support, sizing, assistance with CE or transport certification
    Common technical environment:
    - C / C++ / Python / VHDL
    - Embedded Linux / RTOS / FreeRTOS
    - Tools: KiCad, Altium, LTspice, STM32CubeIDE, ESP-IDF, PlatformIO, DAVE (Infineon)
    ESP32 STM32 FreeRTOS KiCad Connected Objects (IoT)
  • Avnet Silica
    Power FAE
    TECH
    February 2021 - February 2024 (3 years)
    Toulouse, France
    Experienced power electronics engineer, I specialize in technical support for advanced components such as IGBTs, SiC MOSFETs, drivers, and motor control technologies. My expertise lies in bridging customer needs with solutions that are economical, reliable, and high-performing, in both design and production.

    Accustomed to managing projects independently or in collaboration with sales teams, I provide precise technical and economic feedback to guide strategic choices. My in-depth knowledge of SiC and GaN technologies, combined with proficiency in embedded and PC software (C, Python, Linux, VHDL), enables me to develop innovative solutions tailored to industrial constraints.

    Versatile, rigorous, and results-oriented, I am involved at every stage of the project to ensure the quality and robustness of the developed systems.
    IGBT SiC Power Electronics Embedded Systems Project Management

Reviews

5.0

Out of 2 ratings

O

Olivier

Ceo - EURL O2H

Reviewed on 12/15/2025

Mathieu was very professional and gave good advice throughout the project. I highly recommend him and plan to use his services again in the future.
J

Jerome

LEXARO COMMERCE FZCO

Reviewed on 8/28/2025

Mathieu performed a comprehensive technical audit for me on a complex project (radiometric thermal camera + medical BLE probe). In a very short time, he produced work of remarkable quality: - Detailed architecture analysis, - Preliminary costed and optimized BOM, - Identification of critical points (power supply, safety, calibration, EMC/Radio), - Firmware recommendations (BLE/OTA, low power), - And a ready-to-manufacture roadmap. His professionalism, rigor, and ability to simplify complex technical points reassured me greatly. What he delivered is well worth more than the agreed price. I highly recommend Mathieu for any demanding hardware/IoT project.

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Education

  • Electrical Engineering degree, specializing in Digital Systems Design
    Polytech'Clermont-Ferrand
    2005
    Ingénieur génie électrique, option conception de systèmes numériques

Skill set

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