Alexander Perfilyev is a highly experienced Android developer who has contributed his expertise to multiple organizations throughout his career. Perfilyev holds a specialist degree in Design and Technology of Electronic Equipment from Russian State Technological University named after K.E. Tsiolkovsky (MATI). He has a strong skill set in Kotlin, Java, SQLite, RxJava 1/2, Dagger 2, Android Jetpack, Retrofit 2, Realm, SQLBrite, SQLDelight, Mockito, and JUnit.

Perfilyev has worked as a Senior Android Developer at renowned companies such as Sberbank and Ozon.ru, where he showcased his Android development skills and added value to the organization. He has also worked as an Android Developer at brief and OneTrak LLC. Perfilyev's skills and expertise allow him to develop high-quality and robust mobile applications for Android.

Overall, Alexander Perfilyev is a skilled Android developer with years of experience working in the field, making him a valuable asset to any organization looking to develop cutting-edge mobile applications.