Hire the Best Android Developers
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I run an indie portfolio of 11 mobile apps with 300K+ users and 4.8-star average ratings. On Upwork I've earned $400K+ across 15 long-term contracts. 9+ years shipping native iOS, native Android, and Flutter. I took a break from Upwork to focus full-time on my own app portfolio, and I'm back taking contract work part-time, 15-20 hours a week. Most of my Upwork clients have come back for second and third projects. What I work with: - Native Android (Kotlin/Java) and iOS (Swift/SwiftUI/UIKit) - Flutter and React Native for cross-platform - Firebase, Supabase (backend, analytics, push notifications) - Subscriptions and payments (RevenueCat, StoreKit, Google Play Billing) - Backend when needed (Python, .NET, Go) - CI/CD and testing What sets me apart from most contractors here is product thinking. I run 11 of my own subscription apps in production, so I can tell you which features will actually move your metrics and which will waste your budget. Subscriptions, monetization, ASO, retention, analytics, localization. I run this experiment every week on my own portfolio, so I'm not guessing when I work on yours. If you need a mobile app built, fixed, or taken to the next level, let's talk.

I help founders turn ideas into high-quality iOS apps that scale, following industry-standards. ✅ 10+ years as a senior iOS engineer in Germany for companies like trivago, Ubisoft, and Deutsche Kreditbank (DKB). ✅ Skilled in Swift, SwiftUI, OpenAI integration, Supabase, Analytics, Subscriptions & In-App Purchases, GitHub, SwiftData, Unit Testing, MVVM+, and more. 🚀 POPULAR APPS I'VE WORKED ON: • trivago • Porsche Card (German App Store) • Miles & More Credit Card by Lufthansa (German App Store) • Hilton Honors Credit Card by Hilton (German App Store) • Assassin's Creed: Identity 💼 WHAT YOU GET WORKING WITH ME: • Proactive, reliable, and easy to collaborate with. • High-quality, maintainable, and scalable code built right from day one. • Pixel-perfect UI with attention to detail and performance. • Deep understanding of Apple’s App Review & Distribution Guidelines. 👩🏻‍💻 SERVICES I OFFER: • Consultation: Technical feedback or architecture review. • MVP Development: Build a native iOS MVP from scratch. • Feature Implementation: Add new features or improvements to your existing app. • Feature Updates: Maintenance, refactors, or upgrades. Plus more… 🛠️ CURRENT TECH STACK INCLUDES, BUT IS NOT LIMITED TO: Languages: Swift UI Framework: SwiftUI AI Integration: OpenAI Source Control: GitHub Subscriptions: RevenueCat Analytics: Google Analytics Local Storage: SwiftData (iOS 17+) Backend: Supabase, REST APIs Architecture: MVVM + modern state management (iOS 17+) Testing: XCTest 💬 Let’s build your app right from day one. Message me to discuss how I can bring value to your business.

Experienced Android developer with 6 years of experience, familiar with the whole process of app development, can work both on new projects as well as adapting existing complex code bases or debugging and fixing bugs. **My Skills** - Kotlin, Java, KMM, KMP - RxJava, Coroutines - Jetpack Compose, Flow, LiveData, Navigation, Pagination, etc (Android Architecture Component) - MVVM, MVP, MVC (Application Architectural pattern) - Retrofit, Ktor (Network call) - Junit, Robolectric, Mockito, Espresso - (Unit & UI Automation) -. Hilt, Koin, Dagger 2 (Dependency Injection) - Room, ORMLite, Realm (Database management) - Fabric, Google Analytics, NewRelic (Analytics) - Google, Facebook, Twitter (Social Media SDKs) - Figma, Zeplin, InVision, Sketch, Photoshop (Pixel perfect UI) - GitHub, Bitbucket. (Code management) - JIRA, Trello, Slack, Microsoft teams, Google Chat (Task management and communication) - Good Analytical and problem solving skills. - Google Play store. **Worked Area** Having product development experience and worked in Banking, FinTech, Telecom, E-commerce, Logistic and Social Media industries.

I am an Experienced Mobile Developer with 8 years in the industry and proficient with Flutter, Kotlin, C#, Java. I have been passionate about mobile development with Latest technology and Programming standards. I have solid experience in troubleshooting and problem solving. I am a great team player and passionate about learning new skills and challenges.

Experienced Android Developer with 5+ years of expertise in developing mobile and POS applications. Specialized in Jetpack Compose, Kotlin, LiveData, Firebase, and REST API integration. Strong background in payment integrations (Stripe, PayPal, NFC, Bluetooth Payment) and real-time data synchronization. Passionate about creating high-performance, user-friendly applications that enhance business efficiency.

- Experienced Full-Stack Developer with over 5 years of expertise in mobile development and expanding into comprehensive web and backend technologies, specializing in Kotlin, React, and cross-platform solutions. - Currently developing AutoZoku, a full-stack vehicle management platform using Kotlin Spring Boot for backend APIs, React/Next.js for web interfaces, and Compose Multiplatform for mobile applications, demonstrating end-to-end development capabilities. - Led the development of cross-platform learning management systems and streaming platforms using Flutter and Dart, resulting in successful deployments across Android and iOS with significant user growth. - Skilled in project management with a proven track record of leading cross-functional teams and managing projects from conception to completion. Google Certified UX Designer with a passion for creating seamless user experiences across all platforms.