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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 build 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻-𝗿𝗲𝗮𝗱𝘆, 𝗳𝘂𝗹𝗹-𝘀𝘁𝗮𝗰𝗸 .Net Web 𝗶𝗢𝗦 & 𝗔𝗻𝗱𝗿𝗼𝗶𝗱 𝗮𝗽𝗽𝘀 with 𝟵+ 𝘆𝗲𝗮𝗿𝘀 of hands-on experience Flutter for fast MVP/Production, and native Java/Kotlin/Swift when performance or device-SDK work needs it. I’ve built and maintained 𝗹𝗮𝗿𝗴𝗲-𝘀𝗰𝗮𝗹𝗲, 𝗵𝗶𝗴𝗵-𝘁𝗿𝗮𝗳𝗳𝗶𝗰 𝘁𝗲𝗹𝗰𝗼/𝗰𝗼𝗿𝗽𝗼𝗿𝗮𝘁𝗲 𝗮𝗽𝗽𝘀 used by 𝟰𝟬𝟬𝗞+ 𝘂𝘀𝗲𝗿𝘀 and handling ~𝟱𝟬𝟬 𝗧𝗣𝗦—so I’m comfortable with real-world production challenges (performance, stability, edge-cases, releases, and long-term maintenance). I’ve delivered 𝗯𝗼𝘁𝗵 𝗻𝗮𝘁𝗶𝘃𝗲 𝗶𝗢𝗦 𝗮𝗻𝗱 𝗵𝘆𝗯𝗿𝗶𝗱 𝗙𝗹𝘂𝘁𝘁𝗲𝗿 𝗮𝗽𝗽𝘀 that run in 𝗰𝗼𝗿𝗽𝗼𝗿𝗮𝘁𝗲/𝘁𝗲𝗹𝗰𝗼 𝗲𝗻𝘃𝗶𝗿𝗼𝗻𝗺𝗲𝗻𝘁𝘀, where reliability and SLA-grade stability matter. If you’re facing tough issues or scaling problems, I can 𝗱𝗶𝗮𝗴𝗻𝗼𝘀𝗲 𝗾𝘂𝗶𝗰𝗸𝗹𝘆 𝗮𝗻𝗱 𝗱𝗲𝗹𝗶𝘃𝗲𝗿 𝗿𝗲𝗹𝗶𝗮𝗯𝗹𝗲 𝗳𝗶𝘅𝗲𝘀—not just “write code.” I’m 𝗳𝘂𝗹𝗹-𝘀𝘁𝗮𝗰𝗸 𝗶𝗻 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝘆: clean UI + backend/API integration + release support (App Store / Google Play). 𝗪𝗵𝗮𝘁 𝗜 𝗰𝗮𝗻 𝗱𝗼 𝗳𝗼𝗿 𝘆𝗼𝘂: • Flutter apps (iOS/Android/Web) with clean architecture & smooth performance • Native Android (Kotlin/Jetpack Compose) + iOS (Swift/SwiftUI) when required • Backend integration: REST APIs, auth/roles, secure data flows • Firebase: Auth, Firestore, Cloud Functions, FCM, Analytics, Crashlytics • Maps/GPS tracking, offline-first sync, real-time updates • Payments: Stripe/PayPal, in-app purchases (when needed) • 𝗔𝗜 𝗶𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻: 𝗢𝗽𝗲𝗻𝗔𝗜/𝗖𝗵𝗮𝘁𝗚𝗣𝗧 — in-app chat, smart summaries, content generation, Q&A/search, and workflow automation (cost + safety minded) Let’s discuss your project—I’d love to help turn your vision into a successful mobile app. Feel free to message me anytime! 🚀

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.

Thank you for taking the time to visit my profile. With over Nine years of dedicated experience in software development, I bring a wealth of expertise to the table. While the following areas represent my core strengths, my skills extend beyond these boundaries: ✅ Top Rated Plus on Upwork: I'm a Top Rated Plus freelancer with 100% Job Success Score, around 30 completed jobs, and a spotless record with zero negative feedback. ✅ Full Stack Development: Skilled in NestJs, NextJs, React JS, React Native, TypeScript, MySql, PostgreSQL, Docker, K8, Helm Chart ✅ Cloud Service & AWS: Proficient in AWS services like Cognito, EC2, S3, Lambda, IAM, SNS, SQS, ECS, EKS, ALB and many more. I also have a good experience with different Firebase services. ✅ GitOps: Experienced in GitOps/DevSecOps practices and CI/CD with tools like Jenkins, Github Actions, and Gitlab CI/CD. I'm eager to join your team or discuss your project. Let's create something extraordinary together!