Vitaly S.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

Senior Android Engineer with more than 14 years of experience. Have worked in various domain areas such as Fintech, Healthcare, E-commerce, Social Media Passionate about matching technical solutions to business needs. As an independent contractor working directly with stakeholders ensures clear communication and maintaining that fine balance between technical excellence and the product roadmap from discovery to deployment. Tech stack currently used: Android SDK, Kotlin/Java, MVVM/MVI/Clean architecture, Coroutines/RxJava, Koin/Dagger2, Retrofit, Firebase, Room DB, Bitrise/CircleCI, Unit Tests (Mockk/Mockito), UI Tests (Espresso/UIAutomator/Compose UI Tests), Screenshot tests, Sonarqube code quality control