Karol Cieślar
Inżynier Ds. Oprogramowania at VISIONA
Lower Silesian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolKarol Cieślar is an Android software engineer with nine years of hands-on experience and over three years of commercial Android development, currently building products at VISIONA. He specializes in Kotlin-based mobile apps, emphasizing clean code, stability, and pragmatic design patterns while regularly performing code reviews and refactoring. Karol pairs client-facing collaboration and practical feasibility analysis with a history of shipping many Android apps and maintaining their SDK-level integrations. His background running a large Minecraft server network taught him infrastructure operations, payment integrations and Linux administration—skills he leverages when delivering reliable production systems. Open to other technologies, he focuses on continuous learning and measurable impact in team-driven environments.
9 years of coding experience
7 years of employment as a software developer
Wykształcenie średnie, Wykształcenie średnie at Liceum Ogólnokształcące dla dorosłych w WałbrzychuSzkoła Zawodowa Technologia obrabiarek skrawających/operator, Szkoła Zawodowa Technologia obrabiarek skrawających/operator at ZSZiO w Kamiennej Górze
English, Polish
Github Skills (60)
reloaded9
minecraft9
bukkit9
spigot9
paper-plugin8
jetpack-compose8
velocity8
bungeecord8
rotation8
android-library8
plugin8
android8
kotlin-library8
connections8
java8
Programming languages (2)
Github contributions (5)
KarolCieslar/DinnerChecker
Mar 2019 - Sep 2020
Contributions:12 commits, 11 pushes, 1 branch in 1 year 6 months
KarolCieslar/McSklepikPL
Jul 2020 - Apr 2023
Contributions:2 pushes, 1 branch in 2 years 8 months
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