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I'm Silviu-Georgian Popescu-Ungureanu, a passionate product builder and Android/iOS developer with extensive experience delivering mobile apps and engaging games. I specialize in Android Studio, Kotlin, Unity, C#, SQLite, Git, Xcode, and Swift, frequently leading projects from design through production and publishing, collaborating with cross-functional teams and mentoring freelancers.…

Silviu-Georgian Popescu-Ungureanu

Developer, Programmer, Product Designer, +1

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I'm Silviu-Georgian Popescu-Ungureanu, a passionate product builder and Android/iOS developer with extensive experience delivering mobile apps and engaging games. I specialize in Android Studio, Kotlin, Unity, C#, SQLite, Git, Xcode, and Swift, frequently leading projects from design through production and publishing, collaborating with cross-functional teams and mentoring freelancers.…

Available to hire

I’m Silviu-Georgian Popescu-Ungureanu, a passionate product builder and Android/iOS developer with extensive experience delivering mobile apps and engaging games.

I specialize in Android Studio, Kotlin, Unity, C#, SQLite, Git, Xcode, and Swift, frequently leading projects from design through production and publishing, collaborating with cross-functional teams and mentoring freelancers.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Language

Romanian, Moldavian, Moldovan

Fluent

English

Advanced

Work Experience

Senior Android Developer at Up România

June 1, 2024 - November 15, 2025

Current role focusing on Android development across multiple Up projects such as Up Romania, Up Tombou, Up IFR, and Up Absolu. Responsibilities include design, production, and project coordination.

Senior/Lead Android/iOS App Developer at Goodgame Studios

November 1, 2022 - November 1, 2022

Create and maintain tools for translating games; present tech direction in board meetings; manage sprint tasks; synchronize with team; implement LiveOps features; support DevOps; fix bugs; Technologies: Android Studio, Java, Kotlin, Unity, C#, SQLite, Git, Xcode, Swift, Jira, AppCenter, Firebase.

Senior/Lead Android/iOS Developer at Football Lover Games

July 1, 2019 - November 15, 2025

Design, production, publishing; contracting freelancers; leading projects such as Football Blast, Football Crush Match 3, Sudoku Champions, Falling Balls, FC Juggle Master 24, FC Card Creator 24, Idle Fantasy Draft, FUT Puzzle.

Lead Android Developer at Softvision

June 1, 2019 - June 1, 2019

Lead Android development for Salesforce Social Studio and PAX POS; decisions on tech direction; customer sync; feature implementation; customer support; Teams using Android Studio, Java, Kotlin, Git, Jira, Postman.

Android Development Team Lead at T-Me Studios

May 1, 2018 - May 1, 2018

Led Android Development Team; worked on Stickchat, Redraw Keyboard, Android Customization Apps; responsibilities included business decisions, tech decisions, hiring, templates to reach ~6000 apps, internal ad lib development, widget design.

Senior Android Developer at Big Blue Studios

January 1, 2016 - January 1, 2016

Automatize platform that created ~6000 apps from ~15 templates; maintain internal advertising lib; implement various types of apps: Keyboards, Messaging apps, Screen Lockers, App Lockers, Wallpapers, Icon packs & more.

Regular Android Developer at Big Blue Studios

July 1, 2015 - July 1, 2015

Mid Game Developer at Big Blue Studios

November 1, 2014 - November 1, 2014

Projects: Mobytrader, Off the Record: The Final Interview; Implement flow & functionality; login, social features, pop-ups; manage user database; design different areas of the app.

Junior Game Developer at Big Blue Studios

June 1, 2012 - June 1, 2012

Programming, animations, assembling art, help with design issues; contributed to Final Cut: Fade to Black, Sea of Lies 6: Leviathan Reef.