10 years of development experience. Tech Expert - 6 years, Supervised professional and business development of the department; - 6 years, Managed new directions for the development of the department; Project Lead - 7 years, Led projects with small and large teams: Process management / Risk management / Mentoring; Engineer - 10 years, Developed projects of any complexity from beginning to production; Mentor - 5 years, Mentored engineers on a bench to the next level (Junior/Middle/Senior); - 5 years, Advocated people for a promotion to different levels; Estimator - 8 years, Estimated the technical and cost aspects and risks of development projects; - 5 years, Created roadmaps for a team with divided responsibilities and priorities; Interviewer - 6 years, Conducted architecture and technical interviews; - 4 years, Developed documentations and interview assessments; Tools Expert - 7 years, Maintained and developed tools to improve development velocity: Tools / Plugins / Documentations / Tech Templates / CI/CD scripts; Principles: SOLID, Clean Architecture, GOF; Architectures: MVVM, MVP, RIBs; Languages: Kotlin, Java; Multithreading: Kotlin Coroutines, RxJava; DI: Dagger, Hilt, Koin; Databases: Room, DBFlow, SQLite; Networks: Retrofit, OkHttp, PubNub, Sendbird, WAMP, REST, UDP/TCP, WebSocket; UI: Navigation, Jetpack Compose, Cicerone, MPChart, WilliamChart; AI: ML Kit, Huawei ML Kit, Google Vision, TessTwo/Tesseract; Sensors: Camera 1|2|X, BLE, Accelerometer, Gyroscope, GPS, Battery Profile, CPU Temperature; Google: Maps, Places, Play Billing, In-App Update, Dynamic Delivery, AdMob; Firebase: Auth, Config, Database, FCM, Performance, Storage, Analytics, App Distribution; Encryption: RSA and AES algorithms; Tests: JUnit, Mockk, Robolectric; Tools: Gradle, Gitlab CI, Docker, TeamCity, Jenkins, Kotlin script, Shell script; Other: AOSP, AR, MoPub, Android Profiler.