Сергій

Serhii Vinnik Android Developer
Vinnytsia, Ukraine

Summary Experienced Android Developer with over 5+
years of expertise in the mobile app development
industry. Proficient in crafting high-quality,
maintainable, and scalable code with a strong focus
on readability and clarity. Committed to delivering
exceptional user experiences through intuitive and
well-designed interfaces.

Technical Skills Languages: Kotlin, Java
IDE: Android Studio
Project Architecture: MVVM, MVP
Development Software: Jira, Trello, Figma,
Postman, Git
Frameworks & Technologies: RxJava , Coroutines,
Glide, Coil, Google Play Services, Koin, Hilt,
Retrofit, OkHttp, Android Architecture
Components, Unit testing, UI testing, Firebase,
Facebook SDK, Realm, Room, GraphQL, gRPC,
Jetpack Compose

Experience Projects:

Zveno
Technologies: Kotlin, Java, Android SDK,
Facebook SDK, Git, RxJava, DataBinding, Retrofit,
Glide, Firebase, Koin
Responsibilities: develop android app

Digital Cleaning Director
Technologies: Kotlin, Android SDK, Git, RxJava,
DataBinding, Retrofit, Koin, Glide, Firebase
Responsibilities: develop android app

SalesBox Admin
Technologies: Kotlin, Android SDK, Git, RxJava,
DataBinding, Retrofit, Glide, Koin
Responsibilities: develop android app
Link:
https://play.google.com/store/apps/details?id=
salesbox.me.admin2

GlobalSDK
Short description: Develop library used by
merchants to implement localized e-commerce
experience in the mobile application
Duties: Developing framework from scratch
Tools & Technologies: Kotlin, Git, Retrofit,
GraphQL, Coroutines, RESTful web services,
JUnit, Robolectric

E-check
Short description: Development of software for
software recorders of settlement operations.
Duties: Development and support of the
application for phones and terminals. Payments
by QR code and NFC
Tools & Technologies: Kotlin, Java, GitLab,
Retrofit, Coroutines, RESTful web services,
JUnit, Espresso, gRPC, Glide, Koin, Firebase,
Facebook SDK, Realm, AIDL
Link:
https://play.google.com/store/apps/details?id=e
_check.prod_2_0&hl=uk

Languages:
English – А2
Ukrainian – Native

Education
2015 – 2018
Computer Academy "STEP"
Faculty of Software Development

Contact information:
e-mail: [відкрити контакти](див. вище в блоці «контактна інформація»)
phone: [відкрити контакти](див. вище в блоці «контактна інформація»)
linkedin: [відкрити контакти](див. вище в блоці «контактна інформація»)
TG: @VinSergey