Александр

Oleksandr D.
Senior Android Developer​
Ivano-Frankivsk, Ukraine

Education
Master’s Degree in Applied Mathematics​
National Technical University 'Kharkiv Polytechnic Institute'

Professional Summary
Android Developer with 7+ years of experience in designing, developing, and maintaining
mobile applications across fintech, telecom, fitness, and AI domains. Proficient in Kotlin and
Java, with expertise in Jetpack Compose, Coroutines & Flow, and modern architectural
patterns (MVVM, MVI). Experienced in working within distributed teams, mentoring junior
developers, and delivering scalable, high-quality solutions.

Technical Skills
• Languages: Kotlin, Java​
• Frameworks & Libraries: Jetpack Compose, Coroutines & Flow, Retrofit2, OkHttp, Room,
Dagger, Koin, Google Play Services, Firebase, Google Maps, Socket.io, Picasso​
• Architectures: MVP, MVVM, MVI, Clean Architecture​
• Tools: Git, Jira, Confluence, Bitbucket, Postman, Swagger​
• Other: WebSocket, Firebase Cloud Messaging, Machine Learning (Llama, Silero VAD, TTS
models)

Professional Experience
New Line Technologies, Kharkiv, Ukraine — Senior Android Developer (2020 – Present)

• AI Voice Companion (NDA) – Developed a smart voice AI assistant with natural
conversational interactions and support for CarPlay.​
Stack: MVVM, Retrofit, Glide, Silero VAD, Llama, TTS, FFmpeg.​
• Secure Messenger (NDA) – Implemented encrypted messaging with audio/video calls
using RSA & AES encryption.​
Stack: MVVM, Room, Coroutines, WebSocket, Firebase.​
• Active Parks – National sports & fitness app by the Ministry of Youth and Sports of Ukraine.​
Stack: MVVM, Room, Coroutines, Google Play Services.​
• Telus TV – IPTV solution with 630+ channels for Canadian market.​
Stack: MVP, Retrofit, Glide.
PULS Software — Android Developer (2019 – 2020)

• Swedish social network with complex animations & sensors.​
• Vehicle sharing startup with custom UI and map integrations.​
• Document management solution for a large mining company.

Freelance & NDA Projects — Android Developer (2018 – 2019)

• Fintech: crypto wallet, payments, transfers, compliance integrations.​
• Retail: shopping apps in France, loyalty systems.