Андрій

Andrii Dotsiak PROFILE
SENIOR ANDROID ENGINEER
Senior Android Engineer and Team Lead with 6+ years of experience building mobile apps
DETAILS in fintech, media, mapping, and accessibility. Focused on scalable architecture, clean code,
and mentoring developers. Skilled in Kotlin, Jetpack, MVI/MVVM, Dagger/Hilt, and
Ivano-Frankivsk performance tuning. Delivered secure fintech, custom video players, and location-based
Ukraine apps while improving stability, delivery speed, and cross-functional collaboration through
[відкрити контакти](див. вище в блоці «контактна інформація») Agile practices.
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PROJECTS
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SKILLS IPTV Hub
JAN 2025 — PRESENT
Programming Languages: Kotlin, Java
IPTV Hub is a fast, easy IPTV player for your own M3U, M3U8 and Xtream Codes playlists.
Android SDK, MVVM, MVP, MVI/Redux MVI, Add your playlist once and watch live TV, movies and series in a clean, modern player built
Modular Application Structure, Jetpack for smooth playback.
(Compose, Room, Hilt), Google Material
Design, Custom Views, UI/UX, Responsive Google Play: play.google.com/store/apps/details?id=com.iptv.hub
Mobile Design
EMPLOYMENT HISTORY
SharedPreferences, Retrofit, Volley, Ktor,
Dagger, Hilt, Koin, Kotlin Coroutines, Realm,
Room Database, Sentry, Crashlytics, Android Team Lead, AVADA MEDIA (Remote, Ukraine)
Firebase, WebView, User Authentication, JULY 2023 — AUGUST 2025
Push Notifications, WalletConnect, Crypto
APIs, PDF Rendering/Conversion, Google Led Android development team, owning architecture decisions, feature delivery, and
Accessibility APIs, Google Navigation mentoring. Directed Agile ceremonies (sprint planning, stand-ups, retrospectives) to drive
continuous improvement and team alignment. Collaborated with product managers,
Coil, Glide, Picasso, Custom Video Players, designers, and QA to ensure features met business goals and were delivered on time.
Android TV Optimization
Communicated technical decisions and progress to stakeholders, aligning engineering
Google Maps API, MapBox, Geofencing, work with strategic objectives.
Location-based Features
Key Projects:
Git, GitHub, GitLab, Postman, Swagger API, ● Cryptocurrency Wallet App – Cryptocurrency Wallet & Exchange. Developed
Agile/Scrum
core wallet features: secure authentication, crypto transfers (send/receive), DEX
exchange, WalletConnect integration, and seed phrase backup/recovery.
LANGUAGES Designed scalable architecture with MVI, Hilt, Ktor, and Room, ensuring reliability
and security for financial operations.
English (B1)
Ukrainian (Native speaker)
● Fitness App – Fitness & Workout Video Lessons (Android TV). Built a custom
video player optimized for Android TV. Delivered user authentication and
subscription flows. Integrated networking and data storage with MVI, Hilt, Ktor,
and Room for consistent user experience.
Highlights:
● Improved stability and performance by enforcing clean architecture and modern
Android practices.
● Mentored junior developers, conducted code reviews, and aligned the team on
best practices.
● Contributed to faster delivery cycles and higher product quality through proactive
leadership.

Android Developer, Avanquest (Remote, Ukraine)
AUGUST 2022 — MAY 2023
Contributed to the development of SodaPDF, a cross-platform app for viewing and editing
PDF files, optimized for ChromeOS and Android. Worked on performance-critical

rendering and custom UI components, ensuring smooth user experience and scalability.
Collaborated in Agile teams with PMs, designers, and QA to deliver features on time and
at scale.
Key Contributions:
● Implemented and optimized PDF rendering and conversion workflows for mobile
and ChromeOS.
● Built custom UI components in Jetpack Compose tailored for PDF editing
features.
● Integrated core app layers using MVI architecture, Koin for dependency injection,
Ktor networking, and Room persistence.
● Enhanced app stability and responsiveness by profiling and optimizing rendering
performance.
Highlights:
● Delivered features that significantly improved the speed and reliability of PDF
viewing/editing.
● Collaborated with cross-functional teams to align on architecture and feature
delivery.
● Strengthened app UX with polished UI and seamless integration across devices.

Android Developer, Pecode Software (Lviv, Ukraine)
JULY 2020 — AUGUST 2022
Developed multiple Android applications across diverse domains including mapping,
education, and telecom. Delivered features from concept to release, ensuring scalable
architecture, smooth UI, and high performance.
Key Projects & Contributions:
● Vegan Maps – Integrated Google Maps with custom markers, filters, and
animations. Optimized handling of large data sets with MVP, Dagger, Retrofit,
Room.
● Choice – Added Google Maps integration for restaurant search and display.
Implemented MVVM architecture, Dagger DI, and Realm persistence.
● ECHOES – Integrated MapBox with geofencing zones to trigger audio stories. Built
caching system for offline data access. Used MVP, Dagger, Retrofit, Realm to
ensure clean and scalable architecture.
● FullFibre – Integrated MapBox to display optical fiber networks and outages.
Implemented functionality for reporting and managing network issues.
Developed with MVVM, Dagger, Retrofit, Realm.
● EnglishQuiz – Built user authentication and quiz/testing flows. Applied MVVM,
Dagger, Retrofit, Room for stability and maintainability.
Highlights:
● Gained extensive experience with maps (Google Maps, MapBox) and
location-based features.
● Delivered production-ready apps with clean architecture (MVP/MVVM).
● Collaborated with design, backend, and QA teams to ensure timely delivery.

Android Developer, MakeIT (Lviv, Ukraine)
APRIL 2019 — MAY 2020
Worked on Android applications in accessibility and logistics, focusing on usability,
reliability, and clean architecture.
Key Projects & Contributions:

● 112 – Emergency Assistance for People with Disabilities: Implemented features
for emergency service calls tailored to accessibility needs. Integrated Google
Accessibility APIs to enhance usability. Built with MVP, Dagger DI, Retrofit to
ensure stability and maintainability.
● Kranq – Delivery & Route Optimization App: Developed functionality for delivery
routing and navigation. Applied MVVM architecture with Dagger DI and Retrofit
for scalability.
Highlights:
● Delivered impactful solutions supporting accessibility and social good.
● Strengthened skills in location services, navigation, and accessibility
development.
● Collaborated closely with cross-functional teams to deliver high-value features.