Володимир

VOLODYMYR KOLOMYICHUK
ANDROID ENGINEER
[open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section) | https://github.com/kolomyichuk

ABOUT ME

Android Engineer with 3 years of commercial experience building stable and modern mobile
applications. Skilled in Kotlin, Jetpack Compose, Firebase, REST APIs, Google Map API, with
experience in clean architecture and performance optimization. I am passionate about building
valuable products that solve real user problems. I am also a strong team player, committed to
continuous learning, adopting new technologies, and writing clean, efficient, and maintainable code.

SKILLS

Android SDK, Android Jetpack, Kotlin, Java, MVVM, MVI, Retrofit, OkHttp, Jetpack Compose, Kotlin
Coroutines, Coil, Material Design, Google Maps API, XML, Hilt, Koin, Firebase (Crashlytics, Analytics,
Firestore, Auth, Remote Config etc.), Clean Architecture, Agile, Scrum, Room , JUnit, Mockk, SOLID,
OOP, Jira, GitHub, GitLab, Git, CI/CD, Mixpanel.

WORK EXPERIENCE

Aug 2023 - Present Android Engineer

Oxagile Worked on Bike Ride Tracker, a GPS-based cycling app focused on
tracking rides, distance, and routes in real time.
Integrated Google Maps API for displaying live location, cycling
routes, and ride history, enabling users to visualize rides in real time.
Implemented core ride tracking logic using Fused Location Provider
and Foreground Services, including route smoothing, improving
route accuracy by 10%
Optimized Jetpack Compose performance by reducing unnecessary
recompositions by 13%.
Implemented weekly ride statistics with a chart showing distance for
each day, increasing user retention by 30% with 70% of users
checking stats weekly.
Technologies: Kotlin, Jetpack Compose, MVVM, Coroutines, Google
Maps SDK, Retrofit, Firebase, FusedLocationProvider.

EDUCATION

2013 - 2016 Accounting and Auditing

Chortkiv College of Entrepreneurship and
Business of Ternopil National Economic University

LANGUAGE

English - Pre-Intermediate (A2) Ukrainian - Native