Hire the Best Android Developers
in Bangladesh

Freelance Android Developer with expertise in custom VPN and low level mobile development. Built custom VPN solutions from scratch and implemented near impossible features on mobile.

Hello! I’m Mahbub Alam, a Top-Rated Android Developer (100% Job Success) with 5+ years of experience building scalable, high-performance mobile and web applications. I specialize in: ✔ Android Development (Kotlin/Java) ✔ Kotlin Multiplatform (KMP) – build once, run across platforms ✔ Jetpack Compose & Modern UI ✔ Clean Architecture, MVVM & SOLID principles ✔ REST API, Firebase, MongoDB, AWS Cloud I have built and delivered 150+ apps, including: AI-powered apps (AI Keyboard, Hashtag Generator) Live Translator (KMP cross-platform app) eCommerce & business apps Utility tools (Volume Booster, VPN, Media apps) 💡 I also develop web apps using Kotlin Compose (Kobweb), including blog and eCommerce platforms. 🏆 Achievements: Top-Rated Freelancer on Upwork (100% success rate) Best Performer of the Year (Envobyte Ltd.) 🚀 I focus on writing clean, maintainable, and scalable code, ensuring your app is fast, secure, and user-friendly.

Your Android app is your business. I ensure it runs smoothly and helps you generate more profit. STEP 1:- I'll audit your Android app codebase and deliver a full bug analysis report in plain English. STEP 2:- I'll audit and fix critical bugs, crashes, and performance issues in your Android app codebase. If you're building a new Android app or trying to fix your existing Android app that's broken, slow, or impossible to scale — You need a developer who doesn't just write code, but thinks about — - your product, - your users, and - your long-term growth. 🏗️ My Tech Stack Languages: Kotlin, Java UI: Jetpack Compose, XML Architecture: MVVM, Clean Architecture, MVI Firebase: Auth, Firestore, Realtime DB, FCM, Crashlytics Networking: Retrofit, OkHttp, Coroutines, Flow Local DB: Room, DataStore DI: Hilt, Dagger2 Testing: JUnit, Espresso, Mockito DevOps: GitHub Actions, Play Store Console ML: TensorFlow Lite ✅ App Migration & Modernization - Java ➝ Kotlin + Jetpack Compose - XML ➝ declarative UIs with AI enhancements - Flutter upgrades, ML model migrations, and feature extensions ✅ Bug Fixing & Code Rescue - Diagnose/fix slow, broken Android/Flutter apps with ML debugging - Resolve crashes, ANRs, and performance bottlenecks - Boost stability and usability with on-device AI monitoring ✅ Types of Mobile Apps I've Built - E-commerce & Service Apps – With AI recommendation engines - AI/ML-Powered Tools – TensorFlow Lite for child emotion detection and image masking - Social & Community Platforms – Real-time ML moderation - Utilities, Fintech, & Lifestyle Apps – On-device personalization - Media, Camera, & Content Apps – Advanced ML vision features 📩 Message me first. Tell me about your app, where you are, and what you need. I'll give you a straight answer on what it will take — no sales pitch, no pressure.

A Mobile Application Developer with more than four years of extensive experience in building high-quality Mobile Apps with a Bachelor's degree in Computer Engineering. What tools and technologies are in my portfolio? • Java, Kotlin • Android SDK, Android Components, Background Task, Android Jetpack (Architecture Component, Navigation component, LiveData, DataBinding), Coroutines, Dagger2, Dagger Hilt, Jetpack compose • Retrofit, Volley • Material Design, Device Compatible design with Constraint Layout. • Firebase, SQLite, MySQL, Realm • Hardware Task (Camera, Biometric, Gps, and other sensors) • MVVM, MVP, and MVC Architecture • Audio, Video (EXO Player, Youtube Player) What is my persuasion? • Clean code and Clean Architecture • Implement Best Practices • Transparent working process Why choose me? • Velocity – Have your projects designed and developed promptly. • Veracity – With detailed and efficient prototyping your project will be exactly what you expected it to be. • Value – Delivering industry-standard practice at Ingestion, Integration, Development, and Testing. It's important to me to build long-term relationships with clients. 'm flexible with my working hours and I am happy to work closely with any existing freelancers. I love my work and enjoy it at most. I look forward to hearing from you!

I help businesses turn ideas into production-ready mobile apps for iOS and Android using Flutter, while also building the backend systems that power them. I've delivered 34 projects on Upwork with a 100% Job Success Score, working with startups, founders, and businesses that need someone who can take ownership of the entire product—not just the mobile UI. Whether you're building a new app from scratch, improving an existing product, or adding advanced features, I can handle both the mobile application and the backend so you don't have to coordinate multiple developers. What I Can Help With ✅ Flutter app development for iOS and Android a. New app development from idea to launch b. Clean, scalable architecture c. App Store and Google Play deployment d. UI implementation from Figma or existing designs ✅ Backend development for mobile apps a. Node.js and REST APIs b. Firebase integration c. Authentication and user management d. Payment gateway integration e. Database design and cloud deployment ✅ AI-powered mobile features a. Face recognition b. Object detection (YOLO) c. On-device machine learning d. Offline AI features that run directly on the phone ✅ Maintenance and improvements a. Bug fixing and debugging b. Performance optimization c. Feature development d. Legacy app modernization Why Clients Work With Me a. End-to-end ownership of both app and backend b. Clear communication and milestone-based delivery c. Focus on maintainable, production-quality code d. Proven track record with successful Upwork projects If you have an app idea or an existing product that needs work, send me a message. I'll review your requirements and explain the best approach before we get started.

Hi! I’m Hosen Ali, an Android developer focused on helping clients turn their app ideas into reality — from development to Google Play publishing support. I work with startups, entrepreneurs, and businesses who want reliable assistance with Android app development and Play Console processes. Whether you’re launching a new app or preparing for release, I provide structured and professional support. 📝 My Services Include: ✅ Android App Development ✅ App Updates & Customization ✅ Closed Testing Guidance ✅ Real Device Testing Support ✅ Play Console Setup & Publishing Assistance My goal is to ensure a smooth development and publishing experience through clear communication and professional collaboration. Let’s build your app and prepare it for a successful launch on Google Play. 🚀