Sylvain Grenet
QA Engineer at Kisio Digital
Paris, Ile-de-France
Summary
👤
Senior🎓
Top SchoolSylvain Grenet is a QA engineer with eight years focused on ensuring reliability of public-transport web services, currently working on the navitia.io ecosystem in Paris. He blends a physics-trained experimental mindset with pragmatic QA practices to root-cause issues across data ingestion, routing calculation, and realtime feeds. Comfortable with both manual exploratory testing and scripted API checks in Python, he also uses tools like Postman, JMeter and QGIS to validate complex transport and OSM data. His approach balances process (DoR/DoD, backlog grooming) and human factors—injecting quality through collaboration with PO, support and integrators. He has deep domain experience improving data quality for major operators (Transilien, Keolis) and migrating transport data formats between regional systems. Notably, he translates operational logs and cloud monitoring into actionable test strategies, reducing false positives and targeting systemic defects.
8 years of coding experience
11 years of employment as a software developer
Physique, Physique at Université Denis Diderot (Paris VII)
Github Skills (68)
public-transportation10
ode10
autocomplete10
gtfs10
mobility10
geocoding10
osm-data10
geocoder10
ntfs10
tiled10
openstreetmap9
astar9
reverse-geocoding9
nominatim9
dijkstra9
Programming languages (7)
Github contributions (5)
hove-io/geocoder-tester
Jul 2019 - Jan 2022
Run search queries against a geocoder that supports geocodejson spec.
Contributions:2 reviews, 20 PRs in 2 years 6 months
specsearch-queriesgeocodergeocodejsonqueries
SGrenet/geocoder-tester
Jul 2019 - Sep 2019
Run search queries against a geocoder that supports geocodejson spec.
Contributions:15 pushes, 28 branches in 1 month
specsearch-queriesgeocodergeocodejsonqueries
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