Kostas Antoniou
Senior Android Developer at Kaizen Gaming
Athens, Attica, Greece
Summary
👤
Senior🎓
Top SchoolKostas Antoniou is a Senior Android Developer based in Athens with 11 years of hands-on experience building mobile apps across Android and iOS ecosystems. He has progressed from internships and freelance work to senior roles at wappier and Kaizen Gaming, contributing to revenue-focused, real-time marketing and betting products. Proficient in Java, C++, Objective-C, Swift and PHP, he pairs native mobile expertise with tools like Android Studio, Xcode, and a strong grasp of networking, JSON/XML and SQL. He’s comfortable across the full mobile lifecycle—architecture, UML-driven design, implementation and debugging of TCP/IP issues—bringing both product-minded and performance-driven perspectives. Known for evolving within fast-paced, data-driven teams, he often bridges backend integration needs with polished client experiences. Based in Greece, he combines a solid engineering foundation from A.T.E.I. Thessaloniki with a track record of shipping customer-facing apps in competitive markets.
11 years of coding experience
9 years of employment as a software developer
Bachelor’s Degree, Information Technology, Bachelor’s Degree, Information Technology at A.Τ.Ε.Ι. of Thessaloniki, Department of Information Technology
Github Skills (95)
progress-view10
coders10
dotnet10
android-application10
kotlin-android10
kotlin10
nutrition10
slide9
linux9
asp-net-core9
asp-net9
dotnet-core9
crowdsourcing9
java9
csharp9
Programming languages (4)
Github contributions (5)
cliffgr/ComparingPerformanceBar
Apr 2021 - Feb 2022
Simple Progress View that you can compare things, like statistics of a Football match
Contributions:5 releases, 18 commits, 1 PR in 9 months
statisticsfootballprogress-viewfootball-matchmatch
cliffgr/MyScore
Feb 2021 - Jun 2021
This project shows how to use Hilt Dependency Injection with Room DB , coroutines along with MVVM
Contributions:10 commits, 2 PRs, 103 pushes in 3 months
injectionmvvmcoroutinesroomhilt-dependency-injection
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