Daniel Petrov

Lead mobile developer for a native (Java + Kotlin) Android application of a community organization for birds preservation. The app is an Android application for data entry with maps and background tracking:

• OpenStreetMap with polygons and pois
• KML display on OpenStreetMap and Google Maps
• Map abstraction interface for switching between Google Maps and OpenStreetMap
• Stay awake feature (disable screen sleep)
• Material design
• CRUD implementation for primary data using master-detail pattern

Lead mobile developer of a native (Java + Kotlin) Android application for sending and receiving calls, SMS, and MMS privately via US or Canadian 2nd Line.

• Taking ownership of the legacy code base
• Involved in UI/UX process
• Consulting the client for platform-specific behavior and experience decisions
• Integrate Kotlin in an existing Java code base
• Support of different ad providers
• Implement audio calls using Twilio communication APIs
• Google Play In-App Review API
• Use Exoplayer library for playing audio and video messages
• Use Glide for image loading, caching, and formatting
• Migration of legacy support libs to androidX
• Integrate Google Sign In

Lead mobile developer of a native Android dating app for
chatting and making audio/video calls.

• Taking ownership of the legacy code base
• Use Dependabot for automated dependency management
• Implement audio and video calling using Quickblox SDK
• Use Room and LiveData for communicating with the local DB
• Create a custom in-app camera screen for taking live selfies using cameraX libraries
• Integrate Google Play Billing