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Stéphane MassonSM

Stéphane Masson

Supermalter

IoT - Embedded Systems - Electronics

€580/day
62 projects
Aix-en-Provence, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Stéphane

Electronics and embedded systems engineer, I have been working for almost 20 years in embedded systems, connected objects, and mobile applications. I can handle everything from your object's firmware to API servers, including the mobile application.

Passionate about technology and an entrepreneur, I started my career in microelectronics (STMicroelectronics) where I worked on new communication protocols by participating in the creation of the first Wi-Fi cards, and home gateways/set-top boxes, as well as the first IPv6 deployments. Then I participated in the standardization of protocols such as MIPI UniPro (now in Google Ara phones).
I then joined NFC at Inside Secure, for whom I integrated their NFC component into the phones of major manufacturers (LG, Blackberry).

Today, I can assist you with the architecture and development of objects, particularly their means of communication with the outside world. I am therefore able to assist you from the idea to the production of your project on missions such as:
- firmware development (STM32, nRF, NXP iMX, Microchip, ARM...),
- creation of BSP and images (RTOS, Linux or Android) for your device/board,
- creation of SDKs (for example for mobile applications)
- setting up your object's communication (technology choice, protocol development, server APIs)
- defining your product's architecture (electronic boards, component choices, and software architecture)
- project management for the design of your electronic board (specifications, prototypes, production, subcontractor management, testbench development)
- code audit and maintenance
- training your teams on technical or architectural topics

I look forward to discussing your project with you.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Aix-en-Provence (up to 50km)

Experience

  • Laqi
    Zigbee - BLE Firmware
    E-COMMERCE
    October 2024 - February 2025 (4 months)
    • Specification and development of the BLE protocol
    • Implementation of Zigbee communication
    • Setup of CI


    Zigbee Zephyr Specifications NRF52 Github Actions Technical Specifications
  • Confidentielle
    Design and development of a connected LED lighting control box
    CIVIL ENGINEERING
    January 2022 - June 2022 (6 months)
    Aix-en-Provence, France
    - Reverse engineering of the communication protocol for an LED lighting strip
    - Prototyping on STM32L4 basis for LED control software
    - Design (with subcontracting) and realization of a control box for these LED strings, comprising 4 strings. The strings are controlled by an STM32L4 and communicate with each other via BLE mesh using an nRF52840 component
    - Validation and design of testing tools
    python C Electronics Bluetooth Low Energy STM32 Firmware
  • Legrand France
    Porting and maintenance of a YOCTO Linux distribution
    MECHANICAL ENGINEERING
    November 2021 - Today (4 years and 7 months)
    For a new Legrand product, I ported and maintained the Yocto Linux distribution for iMX8.
    This includes:
    - device tree porting
    - Setup of adapted drivers
    - Setup of necessary software for the proper functioning of the embedded application
    yocto linux docker

Reviews

5.0

Out of 46 ratings

J

Joff

Laqi

Reviewed on 9/27/2024

Hyper professional and very friendly
SébastienS

Sébastien

HelpYourShelf

Reviewed on 3/29/2023

Vision, execution, respect for deadlines: a 27th mission in line with previous ones. We do not regret a single billed day.

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Education

  • Electronics and Networks Engineer
    ENSERG
    1999
    Ingénieur en électronique et réseaux de transmissions de données

Certifications

  • Innovation Tax Credit Approval (2025-2029)
    Ministry of Economy and Finance

Skill set

Categories