Микола

Mykola Khotych [відкрити контакти](див. вище в блоці «контактна інформація»)
Medium Blog
Khmelnytskyi, Ukraine
Google Play

Ukrainian (native) GitHub
English (intermediate) LinkedIn

About me
I’m a student and self-taught Android Developer with hands-on experience from my personal
projects. I have developed several full-cycle applications, seven of which are published on
Google Play. I’m also a Kotlin and Jetpack Compose enthusiast who shares my work on Medium.
I’m eager to learn and grow in the field of Mobile Development, collaborate with others, and
create innovative and valuable solutions that help others and make the world better.

Technical Skills

Language: Kotlin

Tools & Android Studio, Git, GitHub, Firebase (Analytics, Crashlytics, Remote Config),
Technologies: Google Play Services (In-App Updates, AdMob), RevenueCat

Frameworks & Jetpack Compose, Room Database, Realm Database, Dagger-Hilt, Coroutines,
Libraries: Kotlin Flows, Clean Architecture, WorkManager, Coil, Android Notifications

Experience

GoalWall

📅 Jan – Jul 2025 | 👨‍💻 Sole Developer | 📌 Google Play
A goal-tracking app that helps users stay motivated by displaying progress directly on their
phone’s wallpaper. Designed for long-term goals like fitness, savings, or personal growth.

Tech Stack: Kotlin, Jetpack Compose, Dagger-Hilt, Room Database, DataStore, In-app updates,
Firebase Analytics/Crashlytics/Remote Config, Coil, WorkManager, AdMob, RevenueCat.

✅ Key Contributions:
●​ Integrated Room Database to store and link goals with wallpapers;
●​ Developed a dynamic wallpaper editor using Jetpack Compose;
●​ Implemented background workers for automatic wallpaper updates;
●​ Enabled wallpaper setting and modification based on goal progress.
 SelfThread

📅 Feb – Apr 2025 | 👨‍💻 Sole Developer | 📌 Google Play
A chat-style note-taking app designed for quick, private, and organized self-notes. Combines
the familiar feel of messaging with features tailored for daily tasks, reminders, and file-rich
notes.

Tech Stack: Kotlin, Jetpack Compose, Realm Database, Dagger-Hilt, AlarmManager,
WorkManager, DataStore, Media3, Firebase Analytics/Crashlytics, Material 3, Coil.

✅ Key Contributions:
●​ Built chat-like interface with support for text, media, audio, replies, and inline
markdown (bold, italic, etc.);
●​ Designed custom Emoji picker with full emoji coverage for chat icons;
●​ Implemented voice message recording and playback using Media3;
●​ Enabled message sharing (with attachments) to and from other apps;
●​ Added multi-chat support with custom icons, pinned messages, and search;
●​ Integrated Realm for fast local data storage and offline-first experience;
●​ Used AlarmManager for precise message reminders with push notifications;
●​ Applied dynamic Material 3 theming for a polished, personal UI.

TxT Editor

📅 Nov 2024 – Jan 2025 | 👨‍💻 Sole Developer | 📌 Google Play
A lightweight text editor for Android that allows users to create, edit, and manage text files
without requiring storage permissions. Designed for simplicity, security, and ease of use.

Tech Stack: Kotlin, Jetpack Compose, DataStore, Dagger-Hilt, Firebase Remote Config, Google
AdMob, RevenueCat (Subscriptions), In-app Updates, Firebase Analytics, Coil.

✅ Key Contributions:
●​ Developed a minimalist text editor with essential file operations;
●​ Implemented secure file handling without storage permissions;
●​ Integrated Google AdMob for monetization;
●​ Added premium subscriptions using RevenueCat;
●​ Designed a recent files history for quick access;
●​ Implemented Firebase Remote Config for dynamic app adjustments;
●​ Implemented multi-language support for a global user base.