Freelancer profile translated to English.

Description

Are you developing a connected product and looking for reliable, tested, and production-ready firmware?

I'm Hamza, an embedded software developer with 4 years of experience on real products in production — IoT, embedded Linux, and AUTOSAR.

What I bring to you: I work across the entire chain, from sensor to cloud. ESP32/STM32 firmware under FreeRTOS, MQTT over TLS communication, WiFi/LTE connectivity, custom Yocto images, ECU flashing and diagnostics via CAN/UDS. I don't just deliver code — I deliver a system tested with validation benches and the accompanying documentation.

What sets me apart: I combine three rare expertise areas — product IoT (ESP32, FreeRTOS, MQTT, OTA), embedded Linux (Yocto, CI/CD, QEMU, BSP), and automotive AUTOSAR (DCM, DEM, EB Tresos, CANoe). I add a real embedded AI skill: fall detection on thermal sensor, OpenCV, real-time visualization in PyQt6.

Typical missions: ESP32/STM32/PIC firmware development under ESP-IDF and FreeRTOS. Building Yocto images with custom layers. CI/CD pipelines for build and automatic deployment. Testing and flashing tools in Python/Qt. AUTOSAR diagnostic integration. Sensor monitoring interfaces. Rapid IoT prototyping.

Concrete results: Medical IoT test/production bench rebuilt from scratch at Domalys. Yocto deployment reduced from several hours to a few minutes via CI/CD at T&S. ECU flashing tool adopted by the entire production line at Fenwick Linde.

If your project involves embedded systems, IoT, or vehicle diagnostics — let's talk.

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Paris (up to 50km)

Domalys – Groupe Linet
Embedded IoT Software Developer
HEALTH AND WELLNESS
October 2025 - Today (8 months)
86000 Poitiers, France
• • Development and maintenance of embedded firmware on ESP32/ESP8266 (Aladin 4 & 4.5) under ESP-IDF and FreeRTOS.
• • Design of AI fall detection algorithms in Python with thermal sensor data processing (8×16 matrix).
• • Development of a real-time visualization interface (PyQt6, OpenCV) for monitoring sensors in production.
• • Setup and maintenance of automated test benches for firmware validation in production.
• • Management of MQTT over TLS connections (WiFi & LTE) and diagnostics of embedded I²C/SPI/UART protocols.
• • Implementation of RF certification tests and writing associated technical documentation.
• • Technological watch on embedded optimization methods (FreeRTOS, OTA updates, watchdog).
Stack: C, C++, Python, ESP-IDF, FreeRTOS, ESP32/ESP8266, MQTT, TLS, PyQt6, OpenCV, Git, RPi4
Python C/C++ Programming C# Shell Script Bash
Technology & Strategy
Embedded Linux Engineer
August 2024 - June 2025 (10 months)
France
• • Creation and optimization of Yocto images for Raspberry Pi 4, Odroid, and STM32MP1 with custom layers and recipes.
• • Validation of OS images via QEMU: ARM target emulation, boot tests, and automated regression.
• • Setup of GitLab CI/CD pipelines for automatic build, test, and deployment of embedded Linux images.
• • Development of Python scripts for verification of open-source licenses (SPDX, FOSS compliance).
• • Monitoring of embedded processes: scripts for detecting memory leaks via journalctl and procfs.
• • Maintenance and update of BSPs (Board Support Packages) according to product evolutions.
Stack: Python, C, Shell, YAML, Yocto, QEMU, GitLab CI/CD, Raspberry Pi, Odroid, STM32
Object-Oriented Programming (OOP) Shell Script Python C/C++ Programming Gitlab CI/CD
T&S pour Fenwick Linde
R&D Engineer
July 2023 - August 2024 (1 year and 1 month)
Châtellerault, France
• • Design of a desktop application (Python/Qt) to check the status of forklifts and generate flashing files from the company's database.
• • Flashing ECUs via CAN and UDS protocol (ISO 14229): firmware upload and diagnostic session management.
• • Analysis and resolution of Diagnostic Trouble Codes (DTCs) on forklifts via CANoe and CanBox.
• • Development of automation scripts for regression tests and validation of ECUs on the production line.
• • Interdepartmental collaboration with R&D, Industrialization, and Production teams to resolve field failures.
Stack: Qt Designer, Python, PyCharm, CAN, UDS, CanBox, Etos