Key achievements:• Reduced application startup time by 20% by correctly configuring R8, integrating Baseline Profiles and deferred dependency initialization.• Developed a push notification SDK from scratch that works with multiple push notification services and has a convenient API, which led to a reduction in the integration time of push notification functionality into applications to several hours.• Optimized and improved the video player component (based on ExoPlayer) by… Show more Key achievements:• Reduced application startup time by 20% by correctly configuring R8, integrating Baseline Profiles and deferred dependency initialization.• Developed a push notification SDK from scratch that works with multiple push notification services and has a convenient API, which led to a reduction in the integration time of push notification functionality into applications to several hours.• Optimized and improved the video player component (based on ExoPlayer) by implementing mechanisms for preloading, caching, and selecting video quality based on network characteristics, resulting in a 25% reduction in the first frame loading time.• Participated in the process of splitting the application into Gradle modules, which led to a 30% reduction in the build speed of the application.• Participated in the formation of the technical interview process for candidates for android developer vacancies, resulting in a 20% increase in conversions from technical screenings to interviews. Show less

Key achievements:• Reduced time to market by 20% for new applications by moving core functionality to a separate SDK.• Developed an authorization SDK from scratch, reducing the integration time of authorization functionality into applications to several hours.• Refactored about a third of the most important functionality from Java to Kotlin to update the technical stack of the project.

Key achievements:• Refactored the functionality for working with push notifications, increasing the delivery rate by 15%.• Integrated the video conferencing SDK into the client application.• Developed functionality for caching chats history.