Jan Gruncl
Android Developer at ČSOB
Kladno, Central Bohemia, Czechia
Summary
👤
Senior🎓
Top SchoolJan Gruncl is an experienced Android developer with 12 years of professional work spanning native Kotlin, Java, and cross-platform Flutter, complemented by a strong background in Unity for AR/VR projects. As a freelancer and long-term contributor to companies like ČSOB, KARDI AI, Xmarton and ZENTITY, he routinely ships mobile SDKs and apps across Android and iOS ecosystems. He blends hands-on native expertise with Flutter’s productivity and game/AR tooling, enabling multi-platform delivery from phones to consoles and desktop. Based in Kladno, Czechia, he has a track record of adapting to diverse domains—banking SDKs, health apps, and immersive experiences—while remaining a solo-capable engineer. Notably, his profile reflects sustained parallel roles, indicating both deep specialization and the ability to juggle multiple long-term projects simultaneously.
12 years of coding experience
6 years of employment as a software developer
Ing. (Master's degree), Applied Informatics, Ing. (Master's degree), Applied Informatics at Univerzita Hradec Králové
Czech, English
Github Skills (33)
google-play-games9
google-play9
python8
home-assistant7
fitbit7
iot7
home-automation7
raspberry-pi7
automation6
privacy6
mqtt6
asyncio5
persistent4
sdk4
piano3
Programming languages (5)
Github contributions (5)
JohnyGQD/drag-racing-pebble
Aug 2014 - Sep 2016
Contributions:12 commits, 6 pushes in 2 years
JohnyGQD/fitbit-shared-preferences
Oct 2017 - Oct 2017
Android-like persistent key-value storage for Fitbit SDK
Contributions:10 commits, 8 pushes, 1 branch in 1 day
androidsdkfitbit-sdkpersistentstorage
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