Grégoire Marchal
Ingénieur SI at Decathlon France
Lille, Hauts-de-France
Summary
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Rockstar🎓
Top SchoolGrégoire Marchal is an experienced Ingénieur SI with 13 years designing and leading backend PHP/Symfony projects, currently driving platform work at Decathlon France. He has a strong track record as a lead developer building microservice-based OMS solutions, having led a Core team for Auchan Retail that orchestrated order flows and APIs. Comfortable across Symfony versions from 1 to 4+, PHP7+, REST and CI practices, he pairs hands-on coding with people leadership and delivery in agile environments. His background includes startups and large enterprises, giving him fluency in integration, workflow engines and operational concerns that often sit outside pure development. Based in Lille, he combines deep legacy knowledge (Symfony1/PHP4 era) with modern service-oriented architecture experience, making him effective at migrating and stabilizing complex e-commerce systems.
13 years of coding experience
11 years of employment as a software developer
Licence Pro, Informatique de gestion, Licence Pro, Informatique de gestion at Université Polytechnique Hauts-de-France
Stackoverflow
3,755reputation
294kreached
29answers
8questions
javascript
top-5%
jquery
top-5%
validation
top-1%
jquery-validate
top-1%
Github Skills (172)
redis-sentinel10
redis-client10
bundle10
validation10
php-framework10
pdo10
symfony-bundle10
symfony10
redis10
jquery-validate10
predis10
php10
redis-cluster10
javascript9
jquery9
Programming languages (11)
Github contributions (5)
Gregoire-M/upptime
Jul 2022 - Apr 2025
Contributions:3095 pushes, 1 branch, 13 comments in 2 years 9 months
Gregoire-M/fortune
Apr 2016 - May 2016
Contributions:7 pushes in 14 days
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