Laurent Grégoire
Co-founder, CTO at Mecatran
Bordeaux, Nouvelle-Aquitaine, France
Summary
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Rockstar🎓
Top SchoolLaurent Grégoire is a seasoned engineering leader and co-founder/CTO with 15 years of experience building embedded and full-stack systems from Bordeaux, France. His career spans senior roles at TomTom and multiple embedded software positions, grounded in an engineering education from Icam/Institut catholique d'Arts et Métiers. At Mecatran he combines hands-on development with technical leadership, blending low-level embedded expertise and modern web/back-end practices. An active open-source contributor, he has improved OpenTripPlanner’s UI, geocoding and multimodal routing logic—work that touches a widely used transit planning project. Known for pragmatic problem-solving, he often bridges device-level constraints and user-facing features to deliver reliable, user-centered systems.
14 years of coding experience
13 years of employment as a software developer
Mathématiques Supérieures et Spéciales T, Mathématiques Supérieures et Spéciales T at Icam - Institut Catholique d'Arts et MétiersMaster of Engineering (M.Eng.), Master of Engineering (M.Eng.) at Institut catholique d'Arts et MétiersBaccalauréat E (A-Level), Baccalauréat E (A-Level) at Lycée Saint Gabriel
French, English
Stackoverflow
4,086reputation
368kreached
39answers
45questions
hibernate
top-5%
spring
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apache
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java
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gwt
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orm
top-5%
Github Skills (25)
javascript10
apache9
architecture9
java9
spring9
gwt9
hibernate9
orm9
jpa9
javas8
api-design7
apim7
api7
maps6
locale6
Programming languages (4)
Github contributions (5)
opentripplanner/OpenTripPlanner
May 2011 - Dec 2017
An open source multi-modal trip planner
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:1 review, 668 commits, 32 PRs in 6 years 7 months
Contributions summary:Laurent's contributions focused on enhancing the OpenTripPlanner web application's user interface and back-end functionality, including the implementation of localization strings and locales for the geocoding results dialog box. The user also added features to improve routing, specifically the addition of a new class for a composite geocoder as well as modifications to the way the application handles routes for different modes of transport. Further, the user worked on improving the user experience via the addition of parameters.
multi-sourcemulti-modaltrip-plannermodalplanner
mecatran/gtfsvtor
Feb 2020 - Sep 2022
GTFSVTOR - Fast GTFS validator
Contributions:6 releases, 464 commits, 16 PRs in 2 years 7 months
pythonvalidationgtfsvalidatorgtfs-validator
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