Native Android Development
I build production-ready Android apps with Kotlin, Jetpack Compose, MVVM, Clean Architecture, and modern Android components.
Mobile App Developer
Mahmut Alperen Ünal
Kotlin • Jetpack Compose • Flutter
3 years of experience • Founder of AlpWare Studio • Published apps on Google Play
I build privacy-first, offline-first, and Play Store-ready mobile applications with Kotlin, Jetpack Compose, and Flutter.
3+
Years of experience
30+
GitHub repositories
3+
Google Play apps
1K+
Kodex downloads
Focus
Secure, offline-first, and long-term maintainable Android products.
About
I am an Android Developer with around 3 years of experience building production-ready mobile applications using Kotlin, Java, Jetpack Compose, and Flutter. Across company, freelance, and independent product work, I have been involved in requirement analysis, architecture, UI implementation, API integration, offline data management, background services, release, and long-term maintenance. My focus areas include offline-first architecture, data security, performance optimization, real-time data flows, AES-256 encryption, biometric authentication, Play Integrity API, Firebase, and Play Store delivery. Through AlpWare Studio, I publish privacy-first Android apps used by real users, with a strong focus on sustainable, clean, and long-term mobile products.
What I Do
Android • Kotlin • Compose • FlutterOffline-first & Secure Apps
I design privacy-first products using Room, AES-256, biometric authentication, Play Integrity API, and secure local data storage.
System-level Android Solutions
I work on advanced Android topics such as foreground/background services, WorkManager, Accessibility Services, performance, and battery optimization.
Release, Maintenance & Productization
I handle Play Store delivery, Firebase Crashlytics/Analytics, AdMob, in-app purchases, and long-term maintenance workflows.
Experience
Android Developer
Inity • Istanbul, Türkiye
01/2024 – 11/2025
- Worked across the full lifecycle of client-based Android applications, from requirement analysis to Play Store delivery.
- Built offline-first synchronization and background workflows using WorkManager, WebSockets, Room, Retrofit, and Coroutines.
- Migrated legacy Java modules to Kotlin and MVVM architecture to improve maintainability.
Mobile Application Developer
Freelance • Kayseri, Türkiye
02/2023 – 11/2023
- Managed end-to-end mobile app development and release processes as an independent developer.
- Developed a Flutter-based preschool management app, including UI implementation, backend integration, and user experience improvements.
Android Developer Intern
Dener Makina • Kayseri, Türkiye
01/2023 – 02/2023
- Developed a stock tracking app with barcode scanning and Retrofit-based real-time data synchronization.
Featured Projects
Password Book
A fully offline, privacy-focused password manager built with AES-256 encryption, Room-based local storage, biometric authentication, root detection, and Play Integrity API support. Includes OCR, AutoFill, secure backup, encrypted sharing, AdMob, and in-app purchase integrations.
Kotlin Security AES-256 Biometrics Play Integrity Offline-first AdMob IAP
Adaptive-Hz
An open-source, no-root Android system utility that manages refresh rates on a per-app basis. Built with Accessibility Services and an event-driven architecture to dynamically adjust refresh rates based on user interaction, with a focus on performance, battery efficiency, and vendor-specific optimizations for devices such as Samsung and Xiaomi.
Open Source Kotlin System-level Accessibility Services Performance Battery Optimization No-root
NotifyBridge
An open-source, cross-platform utility that securely forwards Android notifications to macOS over the local network without using any cloud service. Built with Kotlin and Jetpack Compose on Android and a SwiftUI-based macOS menu bar app, featuring QR-based pairing, AES-256-GCM encrypted payload transfer, HMAC-SHA256 request signing, and foreground service support.
Open Source Kotlin Jetpack Compose SwiftUI macOS Local Network AES-256-GCM HMAC
Wakeon
An open-source Wake-on-LAN application built with Flutter. Provides device management, quick wake actions, favorites, search, sorting, import/export, and network discovery features for computers, NAS devices, and servers on the local network. Privacy-focused and stores all data locally on the device.
Flutter Dart Wake-on-LAN Networking Cross-Platform Open Source Material 3 Offline-first
Kodex
A Jetpack Compose Android app for customizable QR code generation and scanning, designed for speed, security, and everyday usability. Includes camera and gallery scanning, history management, categorization, filtering, and offline access.
Kotlin Jetpack Compose Room AES Firebase Crashlytics 1K+ Downloads
KeymapKit
An open-source, system-level Android keyboard layout solution for physical keyboards without requiring a custom IME. Focused on multi-language support and device-independent usage scenarios.
Open Source Android System-level Physical Keyboard Input No IME
Technical Stack
Kotlin Java Jetpack Compose Flutter Dart MVVM Clean Architecture Coroutines Flow / LiveData Room Retrofit Dagger-Hilt WorkManager Foreground & Background Services Accessibility Services Firebase Analytics Firebase Crashlytics Firebase Cloud Messaging AES-256 Encryption Biometric Authentication Play Integrity API Root Detection Offline-first Architecture AdMob In-App Purchases Play Store Release Management
Contact
Feel free to reach out for freelance work, full-time Android roles, mobile product development, or collaborations.