Joël Guittet
Pilotage Projet Et Développement Sur MCU at Witekio
Vienne, Auvergne-Rhône-Alpes, France
Summary
👤
Senior🎓
Top SchoolJoël Guittet is an embedded systems and IoT engineer with a decade-plus career bridging hardware and software, currently leading MCU project delivery and development at Witekio. An ENSEA graduate, he cut his teeth in safety-critical rail systems and has since expanded into IoT sensor design, Yocto-based Linux platforms, and cellular/LPWAN communications (3G/4G/SIGFOX/LoRa/LoRaWAN). He combines schematic and PCB design with low-level firmware on tiny microcontrollers up to complex Linux targets, and has hands-on experience with fieldbuses and radio integration. A proactive self-learner who publishes tools and libraries on GitHub, he also contributes to the widely used Zephyr RTOS—adding board support and fixing firmware update and interrupt issues—highlighting strong hardware-software interfacing skills. Based in Vienne, France, he balances project leadership with continuous R&D and training, making him equally effective as a technical lead and a practitioner.
9 years of coding experience
Diplôme d'ingénieur, Electronique des Systèmes Embarqués, Diplôme d'ingénieur, Electronique des Systèmes Embarqués at Ecole nationale supérieure de l'Electronique et de ses Applications
Github Skills (11)
embedded-language10
embedded10
rtos10
realtime10
microcontroller10
zephyr10
bluetooth-le4
c174
iot4
bluetooth4
c114
Programming languages (10)
Github contributions (5)
zephyrproject-rtos/zephyr
Dec 2022 - Feb 2025
Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.
Role in this project:
Embedded Systems Engineer / IoT Developer
Embedded Systems Engineer / IoT DeveloperContributions:75 reviews, 15 PRs, 185 comments in 2 years 2 months
Contributions summary:Joël's contributions primarily revolve around enhancing the Zephyr RTOS, focusing on board support and driver implementations for embedded systems. They fixed an interrupt issue on the rak5010_nrf52840 board, added support for the Wio Terminal board, including its peripherals (sensors, microSD, and LCD), and integrated Raspberry Pi and Grove headers, demonstrating strong hardware interfacing skills. Additionally, they addressed memory and versioning issues related to the Hawkbit firmware update mechanism and fixed a syntax error in documentation.
bluetooth-lereal-timezephyrsecuregit-repository
joelguittet/c-cote
Jan 2021 - May 2022
Zero-configuration microservices library in C
Contributions:4 releases, 3 commits, 2 PRs in 1 year 4 months
zeromicroservices-librarymicroservicesmicroservices-configurationzero-configuration
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