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I am a Senior Android & Mobile Developer with over 10 years of experience, including 5+ years of professional work building high-performance apps and automation frameworks. My expertise spans Android OS (AOSP), Kotlin, Java, and Flutter, with a strong background in rooted device modifications, reverse engineering, and system-level customization. I specialize in: - Developing native Android apps with scalable architecture (MVVM, MVP, Clean Architecture). - Building automation frameworks using Selenium, Robotium, and Android Instrumentation. - Reverse engineering Android apps & firmware with Jadx, Apktool, Frida, and Ghidra to uncover vulnerabilities or create custom features. - API integration and debugging using Postman, Charles Proxy, Fiddler, and Wireshark. - IoT and Embedded Systems integration, connecting hardware with mobile apps for robotics and smart devices. Why clients choose me: - Proven track record working on advanced system apps and custom Android features at a German tech company. - Strong focus on clean, secure, and maintainable code, following SOLID principles and Agile methodologies. - Experience collaborating with global teams and delivering solutions that boost performance, scalability, and security. If you're looking for a developer who understands Android from the inside out, can automate complex tasks, or debug at the system level, let’s discuss how I can help bring your project to life.

🚀 Expert Android & KMP Developer with a proven track record of building robust, scalable, "middle-sized" applications that punch way above their weight. Whether you need a brand-new product or a performance-driven Code Audit, I bring Modern Android Development best practices to every line of code. I specialize in building cross-platform solutions for Android, iOS, and Desktop using Kotlin Multiplatform (KMP). I provide end-to-end guidance from initial concept to Play Store/App Store deployment. App Types I Specialize In: 🔹 💳 POS (Point of Sale) Systems: Cross-platform solutions for Desktop, Android, and iOS. 🔹 🎬 Streaming Applications: Optimized for high-speed media delivery and smooth UI. 🔹 📦 Inventory Management: Built for scale, accuracy, and real-time data handling. 🔹 📸 Camera & Document Scanners: Implementing advanced Computer Vision and image processing. Technical Expertise: ✅ Kotlin & Kotlin Multiplatform (KMP): Shared logic across all platforms. ✅ Jetpack Compose: Expert in Declarative UI and Compose Multiplatform. ✅ Data Management: Expertise in Local Databases (Room, SQLDelight) and Cloud Databases (Firebase/Firestore, Supabase, Real-time Sync). ✅ API Integration: Seamless connection to REST APIs, GraphQL, and 3rd party services. ✅ Architecture: Clean Architecture, MVVM, and MVI for maintainable, testable code. ✅ Dependency Injection: Expert use of Hilt and Koin. Specialized Services: 🔍 Code Audits & Debugging: Comprehensive analysis to find bottlenecks, fix critical Bugs, and optimize performance. 🎨 App Reskinning: Efficiently updating the UI/UX of existing apps to match new branding or requirements. ⚙️ Modern Tech: Extensive use of Coroutines & Flow for asynchronous programming and reactive apps. Why Work With Me? I don’t just write code; I provide technical leadership. I emphasize clear communication, Clean Code, and collaborative teamwork to ensure your project is future-proof. 🛠️ Let’s turn your idea into a high-performing digital product! Lets discuss how I can bring your vision to life. 🤝

Hi, I’m Mohamed Boumlyk, a Senior Android Developer who thrives on challenges and security. Languages & UI Kotlin & Java: Clean, idiomatic code. Jetpack Compose & XML Views: Modern declarative UIs and legacy View support. Architecture & Patterns MVVM/MVP/Clean Architecture: Separation of Presentation, Domain, Data layers. Dependency Injection (Hilt/Dagger): Manage complex graphs, enable modular tests. Coroutines & RxJava: Asynchronous flows and reactive streams. Data & Storage Room & SQLite: Normalized schemas, efficient queries, smooth migrations. EncryptedSharedPreferences & Jetpack Security: Keystore-backed encryption for sensitive data. Networking & APIs Retrofit & OkHttp: TLS 1.2+, certificate pinning, custom interceptors, Moshi/Gson JSON. WebSockets / gRPC: Secure real-time channels (WSS/gRPC-TLS). REST API Security: Error handling, backoff strategies, input validation. Cloud & Firebase Authentication: Email/Password, Google Sign-In, Phone OTP, custom claims. Firestore & Realtime Database: Real-time sync, offline persistence, security rules. Analytics, Crashlytics & Remote Config: Event tracking, crash reporting, A/B testing. Monetization & Location Google Play Billing & Subscriptions: In-app purchases, tier management, server validation. Google Maps & Location: Custom markers, clustering, geofencing, offline caching. Security & Encryption Android Keystore & BiometricPrompt: Hardware-backed keys, biometric gating. Certificate Pinning & Network Security Config: HTTPS enforcement, cleartext blocking, pin rollover. Runtime Protection: Root/emulator detection, APK signature checks, basic anti-debugging, ProGuard/R8 obfuscation. Background & Automation AccessibilityService & USSD Automation: Read/interact with USSD dialogs, multi-SIM support, non-blocking state machines. WorkManager & Foreground Services: Reliable background tasks that survive restarts and system limits. UI/UX & Performance Animations & Transitions: AnimatedVisibility, MotionLayout, Material motion guidelines. Responsive Layouts & Internationalization: Support all screen sizes, RTL for Arabic/French/English, proper pluralization. Memory & Battery Efficiency: Leak detection (LeakCanary), profiling (Android Profiler), RecyclerView/LazyColumn optimization. Ads & Engagement AdMob, Facebook, Unity, IronSource, etc.: Banners, interstitials, rewarded and native ads with minimal overhead, frequency capping, test-device setup. Push Notifications & Campaigns: FCM segmentation, A/B-tested notification content, feature flags via Remote Config. Testing & CI/CD Unit & UI Testing: JUnit/Mockito for ViewModels/repositories, Espresso/EarlGrey for UI. Static Analysis & Linting: Android Lint, SpotBugs (FindSecurityBugs), custom Detekt rules. CI/CD (GitHub Actions, GitLab CI, Fastlane): Automated builds, tests, vulnerability scans (OWASP Dependency-Check), signed AAB deployment to Play Store. Why Work With Me? I apply a “security-first” mindset from design (threat modeling, encryption, pinning) to production, proactively fixing vulnerabilities. My data-driven approach—analyzing crash reports, analytics, and user feedback—delivers stable, secure features quickly. I also mentor junior developers on best practices (Kotlin Coroutines, DI, Jetpack Security) and continuously refine workflows (migrating to Compose, exploring Kotlin Multiplatform). Whether you need a security audit, performance tuning, or end-to-end feature development (from Firebase backend to polished UI/UX), I’m ready to deliver robust, user-safe Android apps.

I am a freelance Android developer with over 6 years of professional experience building and maintaining high-traffic mobile applications. My expertise covers Kotlin, Java, Jetpack Compose, XML, MVVM, and Clean Architecture, with a strong focus on clean, scalable, and maintainable code. Throughout my career, I’ve worked on both greenfield projects (apps built from scratch) and legacy modernization/maintenance, ensuring smooth migration to the latest Android SDKs and libraries. I have solid experience in : - App Maintenance & SDK Migrations: Updating apps to comply with the latest Android standards - WebView Integrations: Secure login modules (F5), payment systems, and Unity WebGL content. - API Integrations: REST, GraphQL, and Firebase backends. - Authentication & Security: Email/password, Google, Apple sign-in, and biometric authentication. - Offline-first Apps: Local caching, Room, and Datastore for stable user experiences. - Push Notifications & In-App Messaging with Firebase Cloud Messaging. - Publishing & Deployment: Experience releasing and maintaining apps on the Google Play Store and setting up CI/CD pipelines. I enjoy collaborating with teams to bring impactful mobile solutions to life and continuously stay updated on the latest Android technologies.

Stop hitting "Access Denied." If the data exists on a screen (web or mobile) I can extract it. Most scrapers fail when they hit advanced anti-bot shields, React Native apps, or complex SSL pinning. With a Master’s Degree in Data Engineering and over 7 years of freelance experience, I specialize in the "impossible" jobs. Whether it’s a well-engineered website or a high-security mobile app, I build custom solutions to get you the data you need, fast and clean. 🎯 Specialized Extraction: Events & Lead Gen I have extensive experience helping companies dominate their lead generation by extracting attendee and guest lists from major event platforms, including: 1. Event Platforms: Cvent, Eventbrite, Whova, Bizzabo, and specialized trade show apps. 2. Lead Generation: Automated extraction of potential customers and direct injection into your CRM or Lead System. 3. Mobile App Interception: Scraping data from iOS/Android apps by reverse-engineering APIs and bypassing security layers. 🛠️ My Core Expertise 1. Advanced Scraping: Bypassing Cloudflare, Akamai, Datadome, and CAPTCHAs. 2. Mobile Data Extraction: Intercepting traffic from mobile apps (even those with certificate pinning) to pull hidden data. 3. Data Engineering & Pipelines: Building scalable ETL processes to move data from scrapers to SQL/NoSQL databases or Cloud storage. 4. Business Automation: Turning manual data entry into 100% automated workflows. If you need to process data in bulk and store it in a usable format, I have the expertise. 5. Custom Dashboards: Transforming raw scraped data into actionable insights using Tableau and Power BI. ✨Technical Stack 1. Languages: Python (Scrapy, Selenium, Playwright, Scrapling...), Java, JavaScript, Kotlin, SQL. 2. Mobile Tools: Frida, Burp Suite, Mitmproxy, Charles Proxy, Appium, ADB. 3. Data/Cloud: AWS, Google Cloud, Azure, Spark, Hadoop. 4. Databases: PostgreSQL, MongoDB, Pinecone, Redis.

I build AI-powered mobile apps that ship to the App Store and Play Store — React Native apps with real OpenAI, LangChain, and AI chatbot features built in. Most developers can build a React Native app OR integrate AI. I do both. Founders and product teams hire me when they want an AI-powered mobile app — smart search, in-app chatbots, AI agents, personalized recommendations — built end-to-end and actually deployed to real users. 100% Job Success, Top Rated, 1,400+ hours across 11 contracts on Upwork. WHAT I BUILD • AI-powered mobile apps with React Native & Expo (iOS & Android) • In-app AI chatbots and assistants using OpenAI API and LangChain • RAG (Retrieval-Augmented Generation) and vector search for smart, context-aware features • AI agents and conversational AI inside mobile products • Node.js / NestJS backends powering real-time AI features • REST & GraphQL APIs, Stripe payments, AWS deployment AI MOBILE APPS I'VE SHIPPED → Atikia — AI-powered real estate app: smart property search, in-app AI chatbot, interactive maps, and booking (React Native + Node.js + OpenAI) → AMG — AI-powered real estate app with villa construction tracking → Dal — social network mobile app built with Expo React Native → MySyndic — property management app with real-time dashboards and push notifications HOW I WORK Async daily updates, clean documented TypeScript, full deployment guides through App Store & Play Store submission. Clear communication, predictable delivery, no surprises. You work with me directly — never a junior handoff. CORE STACK React Native · Expo · OpenAI API · LangChain · RAG · Vector Databases · Node.js · NestJS · TypeScript · PostgreSQL · MongoDB · AWS · Docker Available for fixed-price projects and long-term contracts. Send me your app idea or brief and I'll reply within a few hours.