l o a d i n g

Experienced Android Developer Needed for Mobile App Development

Nov 10, 2025 - Expert

$20,000.00 Fixed

We are looking for a skilled Android Developer to develop, optimize, and deliver a high-quality mobile application built using modern Android development principles. The ideal candidate must be proficient in Kotlin/Java, Android Studio, Jetpack libraries, Material Design standards, API integration, Firebase services, and performance tuning.


You will be responsible for building clean and responsive mobile screens, implementing features, integrating APIs, managing local storage, optimizing performance, and ensuring strong security practices. This project requires experience with MVVM, ViewModel, LiveData/StateFlow, navigation components, background tasks, and error handling.


You will collaborate with our backend and design teams to translate UI/UX designs into functional Android interfaces. Responsibilities will also include integrating Firebase Authentication, Firestore/Realtime Database, push notifications, analytics, and in-app features. Knowledge of Retrofit, Room Database, Coroutines, and dependency injection (Hilt/Dagger) is essential.


Strong debugging, problem-solving, and version control experience are required. You will test the app across multiple device sizes, address crash logs, and enhance app lifecycle handling. A deep understanding of threading, memory management, and secure data handling is important for this project.


If you are passionate about building smooth, elegant, high-performance Android applications and can deliver clean, maintainable code within set timelines, we would love to collaborate with you.


✅ Responsibilities (15 points)


Develop Android application using Kotlin/Java


Implement MVVM architecture with Jetpack components


Convert UI/UX designs into responsive layouts


Integrate REST APIs using Retrofit/OkHttp


Implement Firebase Auth, Firestore, Storage, Analytics


Build Room database for offline features


Manage permissions, app lifecycle, and background tasks


Optimize app performance and reduce ANRs


Handle navigation using Jetpack Navigation Component


Implement push notifications (FCM)


Write clean, maintainable, modular code


Debug using Logcat, crash reports, and profiling tools


Ensure app compatibility across device sizes and versions


Write unit tests where applicable


Prepare documentation + deployment support


✅ Required Skills (15 points)


Strong experience with Kotlin and/or Java


Android Studio proficiency


Jetpack Components (ViewModel, LiveData, Room, Navigation)


Retrofit + OkHttp for network calls


Firebase Authentication & Firestore


Material Design & responsive UI


Coroutine-based async programming


Local storage using Room DB


Understanding of Clean Architecture / MVVM


API integration & JSON parsing


Git/GitHub version control


Knowledge of background services & WorkManager


Debugging & profiling tools


Familiarity with DI (Hilt/Dagger)


App performance optimization skills


✅ Tools & Technologies


Android Studio Flamingo/Arctic Fox


Kotlin / Java


Jetpack Components


Retrofit / OkHttp


Firebase (Auth, Firestore, FCM)


Room Database


Git / GitHub


Postman / Insomnia


Crashlytics


Material Components


✅ Deliverables


Fully functional Android application


API-integrated screens and workflows


Authentication + user flows


Offline support (Room DB)


Push notifications (FCM)


Crash-free optimized build


App bundle (AAB) for release


Code documentation + setup guides


1–2 revision cycles


✅ Budget


Hourly: $30–70/hr


Project: $3,000 – $20,000


Monthly Retainer: $3,500 – $8,000


✅ Timeline


Total Duration: 6–12 weeks


Week 1–2: UI + architecture setup


Week 3–6: Feature development + APIs


Week 7–9: Optimization & testing


Week 10–12: Final delivery + documentation


✅ Success Metrics


Crash-free sessions ≥ 99%


App startup time < 1.5 seconds


Smooth 60fps UI interactions


Low memory usage & zero ANRs


Play Store–ready optimized build


Passed QA on 10+ device sizes

  • Proposal: 0
  • Less than 2 month
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Leo Griffin Inactive
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Nov 10, 2025
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