Gatien Chevallier
Embedded Software Engineer at Openchip & Software Technologies
Le Mans, Pays de la Loire, France
Summary
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Rockstar🎓
Top SchoolGatien Chevallier is an embedded software engineer with four years of experience specializing in secure low-level systems, having worked as a security software engineer at STMicroelectronics and now at Openchip & Software Technologies. He contributes to OP-TEE and Linux kernel development, notably adding STM32MP13 platform support, refactoring shared memory and clock handling, and introducing a PTA for secure resource management. His background includes system test automation and C++ simulator development for defense systems, plus hands-on embedded projects during an internship at KU Leuven. Based in Le Mans, France, he combines practical OEM experience with upstream open-source contributions, bridging platform bring-up and trusted execution environments. An engineer who moves comfortably between device trees, platform drivers, and secure firmware, he brings a pragmatic focus on maintainable, security-conscious embedded design.
4 years of coding experience
5 years of employment as a software developer
Diplôme d'ingénieur, Ingénierie électrique et électronique, Diplôme d'ingénieur, Ingénierie électrique et électronique at Eseo
Github Skills (16)
c1710
clock10
device-tree10
embedded10
stm10
c1110
sys10
trusted-execution-environment9
device-driver9
configuration-management9
tee9
driver9
time-management8
abstraction-layer7
linux-kernel7
Programming languages (3)
Github contributions (5)
OP-TEE/optee_os
Jun 2022 - Jan 2023
Trusted side of the TEE
Role in this project:
Embedded Systems Engineer / IoT Developer
Embedded Systems Engineer / IoT DeveloperContributions:386 reviews, 60 commits, 49 PRs in 7 months
Contributions summary:Gatien primarily focused on platform-specific configurations and driver updates within the OP-TEE OS. They removed deprecated clock helper functions, refactored shared memory configurations, and updated platform RAM settings. Furthermore, the user introduced support for STM32MP13 platform by implementing specific configurations and adding initial support for the STM32MP135F-DK board and its device tree support. The user also made changes to the BSEC (Boot Security) and introduced a PTA (Pseudo Trusted Application) for managing secure resources.
trustedtee
GseoC/optee_os
Jun 2022 - Apr 2025
Trusted side of the TEE
Contributions:2 PRs, 322 pushes, 63 branches in 2 years 10 months
trustedtee
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