Oleksandr Katrych
Senior Android Developer at Nord Security
Warsaw, Masovian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolOleksandr Katrych is a Senior Android Developer with a decade of software experience and over seven years focused on Android and Kotlin, currently building secure consumer products at Nord Security in Warsaw. He has driven feature delivery and architecture changes across consumer-facing apps like NordVPN and NordLocker, where he introduced Jetpack Compose, led the migration from XML, and addressed encryption and biometrics integration. Previously he improved payments UX at Lyft—rebuilding tipping modules that increased tips by 10%—and led courier app architecture and mentoring at OrderIn. Comfortable both as an individual contributor and a mentor, he frequently coaches junior engineers and conducts Android/Kotlin interviews for Lemon.io. Known for balancing UI modernization with security-first engineering, he brings practical end-to-end mobile expertise spanning performance, accessibility, and encrypted storage.
10 years of coding experience
6 years of employment as a software developer
Engineer's degree Information Technology, Engineer's degree Information Technology at Polish-Japanese Academy of Information Technology
English, Polish, Ukrainian
Github Skills (111)
appwrite10
android-jetpack-compose10
android-compose10
compose-desktop10
serverless10
backend10
firebase10
swiftui10
javascript10
jetpack10
permission10
kotlin-multiplatform10
swift10
compose-multiplatform10
kotlin-multiplatform-mobile10
Programming languages (3)
Github contributions (5)
OKatrych/RightSheetBehavior
Feb 2020 - Sep 2021
Contributions:1 release, 4 commits, 3 pushes in 1 year 6 months
OKatrych/PJATK_Android_Client
Oct 2017 - Jun 2019
Contributions:1 release, 68 commits, 4 PRs in 1 year 8 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.