Hire the Best Android Developers
in Germany

I'm the senior Android developer who built in-vehicle navigation for Harley-Davidson and a 100,000+ download app with on-device AI. Need the hard parts done, Bluetooth/BLE, on-device AI, or native speed that can't lag? That's my lane. 8+ years, Kotlin-first, based in Munich. See exactly how I work in my Portfolio below. iThing is a live open-source IoT dashboard (99.6% Kotlin, Clean Architecture, Jetpack Compose). Ambicam is my 100,000+ download surveillance app on Google Play. I also ship cross-platform with Kotlin Multiplatform (KMP), so you get iOS and Android from one Kotlin codebase. Most clients hire me as an Android developer for one of these: • A Bluetooth/BLE device that pairs but won't stay connected or sync reliably • An app that needs AI running on the device, not a slow round-trip to the cloud • A native Android app that lags, drains battery, or crashes under load • Two separate budgets for iOS and Android when one shared Kotlin codebase would do SERVICES I PROVIDE BLE & IoT Android App Development • BLE / Bluetooth Low Energy device pairing, reconnection and background sync • Zigbee, TCP/IP and WiFi smart-device integration • Smart-home, wearable, healthcare and industrial IoT apps • Device data synced to your backend over REST API and Firebase • Native hardware integration that no-code tools cannot fake On-Device AI & Computer Vision for Android • On-device ML with TensorFlow Lite (data never leaves the phone) • Face recognition, number-plate / object detection, OCR with OpenCV • Camera pipelines and real-time inference on the device • Gemini and Claude API integration for cloud LLM features Native Android App Development (Kotlin, Jetpack Compose) • Kotlin, Jetpack Compose, Clean Architecture, MVVM, Coroutines, Flow, Hilt • REST API integration, Firebase, Room, offline-first apps • Performance tuning, JNI/NDK and C/C++ for the critical paths • Android Automotive, in-vehicle and other latency-sensitive systems • Full lifecycle: architecture to Play Store launch, and taking over an existing Kotlin app Kotlin Multiplatform (KMP) Cross-Platform • One shared Kotlin codebase for iOS and Android (60-95% shared) • Compose Multiplatform for shared UI • Roughly 35-50% cheaper than two native teams • Migrating an existing Android app to KMP PROVEN RESULTS (see for yourself) • iThing, a live open-source IoT dashboard (in my Portfolio): 99.6% Kotlin, Clean Architecture + MVI, Jetpack Compose, Hilt • Ambicam, a 100,000+ download Android surveillance app I built and maintain solo, on Google Play (iOS in Swift too) • In-vehicle navigation for Harley-Davidson (TomTom Navkit): led 5 engineers, 25% latency reduction • On-device face + number-plate recognition (TensorFlow Lite + OpenCV) and native C/C++ live streaming via JNI/NDK • BLE, Zigbee, TCP/IP and WiFi integrations for government-scale tracking and attendance hardware • My first Upwork contract, an industrial IoT / BLE Android app, closed at 5.0 with all five client endorsements HOW I WORK Communication: I reply within a few hours, give you honest timelines, and tell you the moment something changes. No silent weeks. Quality: Clean architecture, code that respects the Android lifecycle and device memory, tested on real hardware, not just an emulator. Where I fit: a senior Android developer and Kotlin developer based in Munich, Germany. I work in English, in the EU time zone, GDPR-aware by default. Best fit: BLE/IoT apps, on-device AI, native Android performance work, Kotlin Multiplatform builds, and rescuing an existing Android app. Not a fit: surveys, research studies, or no-code builds. TECHNOLOGY AND SKILLS Native Android: Kotlin, Java, Jetpack Compose, Android SDK, Android Studio, Clean Architecture, MVVM/MVI, Coroutines, Flow, Hilt, Room, Retrofit Cross-platform: Kotlin Multiplatform (KMP), Compose Multiplatform, iOS in Swift AI/ML: TensorFlow Lite, OpenCV, computer vision, on-device ML, Gemini API, Claude API Native/Perf: JNI/NDK, C/C++, real-time streaming, performance profiling IoT/Hardware: BLE, Bluetooth, Zigbee, TCP/IP, WiFi, smart-device integration LET'S BUILD IT If your project involves a Bluetooth or IoT device, on-device AI, a performance-critical Android app, or a Kotlin Multiplatform build, send me the details. I will reply within a few hours with an honest read on feasibility, the approach I would take, and a realistic timeline. What is the hardest technical part of your app, the piece you are least sure can be done? Tell me that first. - Khyati Keywords: Senior Android Developer, Android App Developer, Kotlin Developer, Native Android Developer, Mobile App Developer, Jetpack Compose, Kotlin Multiplatform (KMP), BLE Android Developer, Bluetooth Low Energy, IoT Android Developer, On-Device AI, TensorFlow Lite, OpenCV, Computer Vision, Android NDK, Android Automotive, Clean Architecture, Firebase, REST API, iOS Developer (Swift), Android Developer Germany, Android Developer Munich.

I help businesses turn ideas into reliable, user-friendly mobile apps. With 4+ years of experience, I build Android, iOS, and cross-platform apps using Kotlin, Java, Swift, and Flutter. I’ve worked on products in travel (OTA), fintech, and healthcare—where performance, security, and smooth user experience really matter. What I can help you with: Build a mobile app from scratch (Android, iOS, or Flutter) Improve or fix existing apps Integrate APIs, payments, maps, or Firebase Optimize performance and user experience Set up CI/CD and automate app releases I focus on clear communication, meeting deadlines, and building apps that actually work well for your users—not just in code, but in real life.

Currently developing with React Native, React, and libraries including databases and server-side technologies compatible with React and React Native. I am engaged in the development of Admin Panel from interface design to programming of various functions, calculators, and automating the speed of work for the company. Consistently met my short and long-term targets. Dealing with customer complaints with empathy and composure. Actively participated in meetings and created new practices. A package of documentation has been processed and information has been entered into databases. Trained, coached, and supervised newsgroup members. Carefully handled large sums of money at the checkout. Offered an idea on how to improve productivity and efficiency. Helped management identify operational problems and find solutions. Managed and delegated tasks to a team of 6 people. Now only 4. In addition to this, I develop various projects and ideas (e.g., creating business cards or any design, developing an online store, online presentation of products—these are small projects that do not take much time). I also know how to develop 3D models and design 3D interiors (with experience in German standards). Just imagine your house or facility plan. Manage the WWW service; Conduct maintenance activities of the WWW service; Perform testing and quality assurance of the operation of the website and web applications; Maintain, monitor, and support the optimal functioning of the websites. Employment opportunities: Website technician; Webmaster; WebDesigner, etc.

🚀 Transform Your Vision into AI-Powered Mobile Apps | Expert iOS & Android Developer, with extensive experience in Cross Platform Apps Why Choose Me? 10+ Years of mobile development excellence with cutting-edge AI integration expertise. I specialize in creating intelligent, user-centric mobile applications that drive business growth and deliver exceptional user experiences. 🤖 AI Integration Specialties Machine Learning Models - Custom AI solutions using MLKit, CoreML, and TensorFlow Lite Computer Vision Apps - Image recognition, OCR, face detection, and AR features Natural Language Processing - Chatbots, voice recognition, and text analysis Predictive Analytics - Smart recommendations and behavioral analysis AI-Powered Features - Smart filters, content moderation, and automated workflows 📱 Mobile Development Expertise iOS Development Swift & SwiftUI, Objective-C, Xcode App Store optimization and deployment iOS-specific AI integrations with CoreML Android Development Kotlin & Java, Android Studio, Material Design Google Play Store publishing TensorFlow Lite and ML Kit integration Cross-Platform Solutions Flutter & React Native for cost-effective development Shared AI model implementation across platforms ☁️ Full-Stack Capabilities Backend & APIs: Firebase, Node.js, REST APIs, GraphQL, AWS Lambda Databases: MongoDB, PostgreSQL, MySQL, Firestore, Realm Real-time Features: WebSockets, Firebase Realtime Database 💼 Proven App Categories with AI Integration 🏥 Healthcare & Fitness Apps AI Symptom Checkers with machine learning diagnosis Fitness Trackers with computer vision form analysis Medical Image Analysis using deep learning models 🛒 E-commerce & Retail Smart Product Recommendations using collaborative filtering Visual Search with image recognition technology Price Optimization with predictive analytics 📊 Business & Productivity Document Scanners with OCR and text extraction Smart Scheduling with AI-powered calendar optimization Data Analytics Dashboards with predictive insights 🎮 Entertainment & Social Content Recommendation Engines for streaming apps AI Photo Editors with style transfer and enhancement Smart Social Features with sentiment analysis 🏦 FinTech & Banking Fraud Detection Systems using anomaly detection Credit Scoring Models with machine learning Automated Trading Bots with algorithmic strategies 🔧 Technical Arsenal Payment Integration: Stripe, PayPal, Apple Pay, Google Pay, In-App Purchases Push Notifications: FCM, APNS with smart targeting Maps & Location: Google Maps, Apple Maps, Geofencing, Location Intelligence Social Integration: Facebook, Twitter, Instagram, LinkedIn APIs Ad Networks: AdMob, Facebook Audience Network with AI optimization 📈 What You Get Custom AI Solutions tailored to your business needs Performance Analytics and user behavior insights Enterprise Security with data encryption and privacy compliance Scalable Architecture built for growth Cross-Platform Compatibility for maximum reach App Store Optimization for better visibility 💡 Recent AI Project Highlights Smart Recipe App: AI nutritionist with meal planning and dietary recommendations Fitness Companion: Computer vision form checker with real-time workout feedback Business Intelligence Dashboard: Predictive analytics for sales forecasting Healthcare Assistant: Symptom analysis with NLP and medical knowledge base E-learning Platform: Adaptive learning system with personalized content delivery 🏆 Why Clients Choose Me Proven Track Record - 50+ successful app launches AI Expertise - Cutting-edge machine learning integration Full-Stack Solutions - End-to-end development capability Agile Development - Fast delivery with iterative feedback 24/7 Communication - Regular updates and transparent progress Post-Launch Support - Maintenance, updates, and scaling 🔍 Keywords for Search Mobile App Development | iOS Developer | Android Developer | Flutter Expert | React Native | AI Integration | Machine Learning | Computer Vision | Natural Language Processing | Firebase | Swift | Kotlin | App Store | Google Play | Custom Software | MVP Development | Startup Apps | Enterprise Solutions Ready to build the next generation of intelligent mobile apps? Let's discuss your project requirements and explore how AI can revolutionize your mobile application. I provide free consultations to understand your vision and propose the best technical approach. Available for: Long-term projects | Short-term tasks | Consultation | Code review | App maintenance Contact me today to transform your ideas into powerful, AI-enhanced mobile experiences that users love and businesses profit from.