Oleksandr

OLEKSANDR
RYUMIN
Mobile apps Developer
Contacts
mobile:
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e-mail:
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Personal profile Experience
Android/React native apps development, Android Developer
including UI with Material Design and Jetpack EPAM Systems
Compose, new feature creation using MVVM Jan-2021 - May-2025
architecture with clean code and design
patterns. React Native Developer
EPAM Systems
Also involves API integration, bug fixing,
May-2024 - Sep-2024
refactoring, and Scrum collaboration.
React Native Developer/PM
Education Freelance
LVIV STATE UNIVERSITY OF INTERNAL AFFAIRS July-2024 - till now

FACULTY OF ECONOMICS Developed over 5 Android applications
Management of organizations following MVVM architecture and clean code
2011-2015 principles, enhancing app maintainability and
scalability
Courses
New features development
Android Development with Java, Integration with external APIs
PLLUG Android Lviv Code refactoring, bug fixing, PR reviews
Android Developer Nanodegree Program on Collaborated in a Scrum team of 1-12
Udacity developers, Product Owner/BA
Android Development with Kotlin, Computer Languages:
EPAM Lab Lviv Kotlin (Intermediate)
Java (Intermediate)
Languages Java Script/Type Script
English Platforms:
Ukrainian Android
Firebase
Russian

Other Libraries
Android Studio, Git, Bitbucket, Gradle, Jenkins, Retrofit Coil Moshi
JIRA, SQLite, Charles, Postman, Firebase, Room Picasso Timber
Figma, OkHttp, Lint, Detekt Hilt/Dagger Lottie JUnit
Redux, React Native hooks, Axios, Zustand Koin Gson