Quentin Ligier
Senior Software Engineer at ahdis ag
Lausanne, Vaud, Switzerland
Summary
👤
Senior🎓
Top SchoolQuentin Ligier is a Senior Software Engineer based in Trondheim with 11 years of professional experience and a strong scientific engineering background focused on eHealth and telemedicine. He has led design and implementation of HL7/IHE specifications and medication management systems at major institutions, consulting for national eHealth bodies and participating in IHE Connectathons. Skilled across backend development and database optimization, he has contributed to open-source projects like Lychee, improving metadata, EXIF handling and SQL performance for a popular self-hosted photo manager. Quentin combines rigorous academic training in electrical engineering and medical informatics with hands-on product delivery, from inpatient tablet apps to shared medication aggregators. Outside work he pursues photography, travel, hackathons and running—traits that reflect a pragmatic, detail-oriented engineer who values usability and real-world impact.
10 years of coding experience
10 years of employment as a software developer
Maturité, Physique et application des mathématiques, Maturité, Physique et application des mathématiques at Collège de SaussureMaster's degree, Electrical and electronic engineering – Information technologies, Master's degree, Electrical and electronic engineering – Information technologies at Ecole polytechnique fédérale de LausanneCertificate of Advanced Studies (CAS), Medical Informatics, Certificate of Advanced Studies (CAS), Medical Informatics at Université de Genève
French, English, German
Github Skills (4)
php10
sql10
database-management8
image-processing8
Programming languages (17)
Github contributions (5)
electerious/Lychee
Mar 2016 - Aug 2016
A great looking and easy-to-use photo-management-system you can run on your server, to manage and share photos.
Role in this project:
Backend Developer
Backend DeveloperContributions:30 commits, 17 PRs, 89 comments in 5 months
Contributions summary:Quentin primarily focused on enhancing the backend functionality of the photo-management system. Their contributions included refactoring date-related functions for improved translation, rewriting the image extension retrieval for better handling, and adding login logs for security. Furthermore, they made improvements to image import and EXIF data extraction, improving the handling of photo metadata and GPS coordinates. Additionally, the user updated the SQL structure to improve database performance.
management-systemphoto-managementgreatsharephoto
qligier/web_userscripts
Aug 2018 - Oct 2022
🐵 Personal userscripts for Tampermonkey, Violentmonkey or Greasemonkey
Contributions:31 commits, 1 PR, 30 pushes in 4 years 2 months
violentmonkeyviolentmonkey-userscriptsgreasemonkeyuserscriptuserscripts
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