Mobile App Developer Needed for iOS and Android Application Development

We're seeking an experienced Mobile App Developer to create high-quality, user-friendly mobile applications for iOS and Android platforms with excellent performance and modern features.

Key Responsibilities:

• Develop native or cross-platform mobile applications

• Design and implement app UI/UX from wireframes

• Integrate RESTful APIs and backend services

• Implement push notifications and real-time features

• Set up user authentication and authorization

• Integrate third-party SDKs and services

• Optimize app performance and battery usage

• Implement in-app purchases and subscriptions

• Handle local data storage and caching

• Write clean, maintainable code

• Test apps across multiple devices

• Deploy apps to App Store and Google Play

• Provide post-launch support and updates

Required Skills:

• 3+ years of mobile app development experience

• Proficiency in native or cross-platform frameworks

• Strong understanding of mobile UI/UX principles

• API integration and backend connectivity

• Mobile database management (SQLite, Realm, Core Data)

• Push notification implementation

• State management patterns

• Version control with Git

• App Store and Play Store submission experience

• Debugging and performance optimization

Development Approaches:

Cross-Platform (Preferred for cost-efficiency):

React Native (JavaScript/TypeScript)

• React Hooks and functional components

• Redux or Context API for state management

• React Navigation

• Native module integration

• Expo framework (optional)

Flutter (Dart)

• Widget-based architecture

• Provider/Riverpod/Bloc for state management

• Material Design and Cupertino widgets

• Platform-specific code

• Hot reload and fast development

Native Development:

iOS (Swift/SwiftUI or Objective-C)

• UIKit or SwiftUI

• Core Data or Realm

• Cocoa Touch frameworks

• Xcode and Interface Builder

Android (Kotlin/Java)

• Android SDK

• Jetpack Compose or XML layouts

• Room database or SQLite

• Material Design components

• Android Studio

Technical Stack:

• Languages: Swift, Kotlin, JavaScript/TypeScript, Dart

• Frameworks: React Native, Flutter, SwiftUI, Jetpack Compose

• State Management: Redux, MobX, Provider, Bloc

• Backend: REST APIs, GraphQL, Firebase

• Database: SQLite, Realm, Core Data, AsyncStorage

• Authentication: Firebase Auth, OAuth, JWT

• Push Notifications: FCM, APNs, OneSignal

• Analytics: Firebase Analytics, Mixpanel, Amplitude

• Crash Reporting: Crashlytics, Sentry

Core App Features:

• User registration and login

• Profile management

• Home screen and navigation

• Search and filtering

• Real-time data updates

• Offline functionality

• Push notifications

• In-app messaging/chat

• Photo/video upload

• Location services and maps

• Social media integration

• Payment processing

• Settings and preferences

Authentication & Security:

• Email/password authentication

• Social login (Google, Facebook, Apple)

• Biometric authentication (Face ID, Touch ID, Fingerprint)

• JWT token management

• Secure storage (Keychain, Keystore)

• API key protection

• Data encryption

• SSL pinning

• OAuth 2.0 implementation

API Integration:

• RESTful API consumption

• GraphQL queries and mutations

• WebSocket for real-time data

• HTTP client libraries (Axios, Fetch, Dio)

• Request/response interceptors

• Error handling and retry logic

• API authentication tokens

• Multipart file uploads

• Pagination and infinite scroll

Database & Storage:

• Local database (SQLite, Realm, Core Data)

• AsyncStorage for simple data

• Secure storage for sensitive data

• Cache management

• Data synchronization

• Offline-first architecture

• Database migrations

• Query optimization

Push Notifications:

• Firebase Cloud Messaging (FCM)

• Apple Push Notification Service (APNs)

• Notification scheduling

• Deep linking from notifications

• Rich notifications (images, actions)

• Notification badges and sounds

• Background notification handling

• User notification preferences

Location Services:

• GPS location tracking

• Geofencing

• Maps integration (Google Maps, Apple Maps)

• Direction and navigation

• Location permissions handling

• Background location updates

• Location accuracy optimization

• Geocoding and reverse geocoding

Media Features:

• Camera integration

• Photo gallery access

• Image picker and cropper

• Video recording and playback

• Image compression and optimization

• Audio recording and playback

• Media upload to cloud storage

• Image filters and editing

Payment Integration:

• In-app purchases (IAP)

• Subscription management

• Payment gateways (Stripe, PayPal, Razorpay)

• Apple Pay and Google Pay

• Payment receipt validation

• Refund handling

• Payment history

• Secure payment processing

Social Features:

• Social media login (Facebook, Google, Apple)

• Social sharing (share content to platforms)

• User profiles and following

• Feed and timeline

• Comments and likes

• Direct messaging

• User blocking and reporting

• Friend requests

UI/UX Implementation:

• Responsive layouts for all screen sizes

• Custom animations and transitions

• Gesture handling (swipe, pinch, drag)

• Loading indicators and skeletons

• Pull-to-refresh functionality

• Tab navigation and side menu

• Bottom sheets and modals

• Custom fonts and icons

• Dark mode support

• Accessibility features

Performance Optimization:

• Fast app launch time

• Smooth scrolling and animations (60 FPS)

• Memory management

• Image lazy loading and caching

• Code splitting and lazy loading

• Battery optimization

• Network request optimization

• App size reduction

• Crash prevention

Testing:

• Unit testing (Jest, XCTest, JUnit)

• Widget/Component testing

• Integration testing

• End-to-end testing (Detox, Appium)

• UI testing

• Performance testing

• Device testing (multiple devices and OS versions)

• Beta testing (TestFlight, Firebase App Distribution)

App Store Deployment:

iOS (Apple App Store):

• App Store Connect setup

• App metadata and screenshots

• App privacy details

• TestFlight beta testing

• App Review submission

• Version updates and releases

Android (Google Play Store):

• Google Play Console setup

• App listing optimization

• Closed/Open testing tracks

• App bundle (AAB) generation

• Release management

• Update deployment

Analytics & Monitoring:

• User analytics (Firebase, Mixpanel, Amplitude)

• Crash reporting (Crashlytics, Sentry)

• Performance monitoring

• User behavior tracking

• Conversion tracking

• A/B testing

• Custom event tracking

• User retention metrics

Additional Features:

• Offline mode with sync

• Multi-language support (i18n)

• App settings and preferences

• Onboarding screens

• App tour and tutorials

• Rate app prompts

• App feedback and support

• Terms of service and privacy policy

• App versioning and updates

• Deep linking and universal links

Third-Party SDKs:

• Firebase services (Auth, Firestore, Storage, Analytics)

• Social media SDKs (Facebook, Twitter, Instagram)

• Payment SDKs (Stripe, PayPal)

• Maps SDKs (Google Maps, Mapbox)

• Analytics SDKs

• Advertising SDKs (AdMob)

• Chat SDKs (SendBird, Stream)

Code Quality:

• Clean code architecture (MVVM, MVC, Clean Architecture)

• Design patterns implementation

• Code documentation and comments

• ESLint/TSLint or SwiftLint rules

• Modular and reusable components

• Error boundary implementation

• Proper state management

• TypeScript for type safety (React Native)

Device Compatibility:

• iPhone (all models from iPhone 8+)

• iPad support (if required)

• Android phones (Android 8.0+)

• Android tablets (if required)

• Responsive to different screen sizes

• Portrait and landscape orientations

• Notch and safe area handling

Deliverables:

• Fully functional mobile application

• Clean, well-documented source code

• iOS app (.ipa file) for App Store

• Android app (.apk or .aab file) for Play Store

• App icons and splash screens

• App Store and Play Store listings prepared

• API integration complete

• Push notification setup

• Analytics and crash reporting integrated

• User documentation and guides

• Admin panel integration (if applicable)

• Source code repository (GitHub/GitLab)

• Post-launch support (2-4 weeks)

• Bug fixes and minor updates

Budget: $40 - $85/hour or $8,000 - $25,000 (Fixed project depending on complexity)

Timeline: 8-16 weeks (depending on features and platform)