Gaëtan Lehmann
XCP-ng Platform Packager
Sibiril, Brittany, France
Summary
🤩
Rockstar🎓
Top SchoolGaëtan Lehmann is a pragmatic software architect and engineer with 20 years of experience building and packaging complex systems, now working as XCP-ng Platform Packager. He combines deep C++ and Python roots with modern Rust enthusiasm, contributing to major open-source projects such as ITK and cross (cross-compilation tooling) and improving build, test and release infrastructures. He has led cloud migrations, DevOps and developer-experience efforts—designing CI/CD, Terraform/Ansible automation, and observability for high-availability, multi-tenant platforms. Comfortable across scientific imaging, big data and blockchain stacks, he bridges research-grade code with production operability. Known for liking elegant, minimal code (and the joy of deleting it), he is equally at home refactoring core libraries and crafting packaging/build systems for reproducible releases. Based in Brittany, he brings a multicultural, team-centric approach and a knack for turning complex requirements into simple, iterative solutions.
20 years of coding experience
14 years of employment as a software developer
Classe préparatoire aux grandes écoles Techniques Biologiques, Classe préparatoire aux grandes écoles Techniques Biologiques at Lycée OzenneBaccalauréat sciences et techniques de laboratoire, Baccalauréat sciences et techniques de laboratoire at Lycée René Josué ValinDESS Ingénieurie des Systèmes Informatiques, Computer Science, DESS Ingénieurie des Systèmes Informatiques, Computer Science at La Rochelle Université
Stackoverflow
935reputation
144kreached
7answers
4questions
Github Skills (57)
fftw10
opencl10
algorithms10
docker10
c-language10
package-management10
crossbuild10
image-processing10
testing10
bash10
cmake10
gt10
dockers10
java10
cicd10
Programming languages (22)
Github contributions (5)
InsightSoftwareConsortium/ITK
Aug 2006 - May 2015
Insight Toolkit (ITK) -- Official Repository. ITK builds on a proven, spatially-oriented architecture for processing, segmentation, and registration of scientific images in two, three, or more dimensions.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1027 commits, 1 comment in 8 years 11 months
Contributions summary:Gaëtan's contributions focused on enhancing the ITK codebase by addressing compiler warnings, fixing issues related to type conversions and data access, and improving the efficiency and performance of FFT operations. Their work involved modifying core classes and algorithms, including improvements to `ImageFileWriter`, `ImageFileReader`, and filters such as `FFTComplexToRealImageFilter`. The user also refactored the internal structure of several classes to address code quality concerns.
pythonitkcomputer-visionopen-sciencescientific
clMathLibraries/clFFT
Feb 2015 - Mar 2015
a software library containing FFT functions written in OpenCL
Role in this project:Automation Engineer / Build & Release Engineer
Automation Engineer / Build & Release EngineerContributions:12 commits, 21 PRs, 10 comments in 1 month
Contributions summary:Gaëtan primarily focused on build system and testing infrastructure improvements within the clFFT library. They addressed platform-specific build issues, particularly related to macOS, and implemented the integration of Google Test for unit testing. The contributions involved modifying CMake scripts to manage external dependencies and configuring compiler flags for various build configurations, including static linking. Furthermore, they added logic to conditionally define specific compiler macros to ensure proper build compatibility.
cudalibrary-softwaregpufftgpgpu
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.