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Hatim MoujahidHM

Hatim Moujahid

Electronics and embedded systems R&D engineer

€400/day
Lille, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Hatim

Do you need to develop an electronic system, integrate sensors, or improve the reliability of a measurement chain?

I assist startups, design offices, and project leaders in designing embedded electronic systems, with a specialization in sensors, IoT, measurement systems, and environmental applications.

I handle the entire technical development process: architecture definition, measurement chain selection, electronic design, schematics, PCB routing, component selection, BOM, manufacturing files, bring-up, debug, testing, and validation.

I can also take charge of firmware development on various embedded platforms: sensor drivers, communication buses, real-time acquisition, battery/power management, data storage, wireless or wired connectivity, transmission to server/cloud, testing, and operational optimization.

Possible deliverables:
electronic schematics, routed PCB, Gerber files, BOM, functional firmware, tested system, technical documentation, and improvement recommendations.

My goal: to help you transform a technical need or product idea into a reliable, functional, and usable electronic solution.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Lille (up to 50km)

Experience

  • anemon sensors
    Electronics and embedded systems R&D mission for NH3 sensor
    August 2025 - April 2026 (8 months)
    R&D development service in electronics and embedded systems for a sensor-based measurement system, with full responsibility for the hardware and firmware parts, from needs analysis to usable deliverables for manufacturing, testing, and product iterations.

    Main tasks:
    • Technical need analysis, research of solutions, and proposal of new approaches for the measurement chain and sensor acquisition.
    • System architecture definition, measurement chain selection, component selection, and structuring of electronic solutions.
    • Electronic design: schematics, PCB routing, BOM, and preparation of manufacturing deliverables: Gerber, pick-and-place, technical files.
    • Prototyping, breadboard testing if necessary, board bring-up, hardware debugging, and design iterations.
    • Firmware development and adjustments on ESP32: sensor data acquisition, power/battery management, Wi-Fi/UART communications, and operational stabilization.
    • Execution of test campaigns, functional validation, results analysis, and preparation of hardware/firmware improvements for subsequent product versions.
    Result: contribution to the development of a more reliable, testable sensor system ready for next product iterations.
    PCB Design ESP32 Sensor Acquisition Testing and Validation Firmware

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Education

  • Master in Networks and Telecommunications
    Université Paris-Saclay
    2024
  • Bachelor's degree in RF Electronics
    University of Limoges
    2022

Skill set

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