Hire the Best Kotlin Developers
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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!

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.

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.

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!

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.

If you want a best android app at a reasonable price then you are at the right place. My main target is the client satisfaction. So I will do my best to get the best response from you. Why me? I have been doing android development since three years. I have a BSc. in Eng. degree in computer science. So I am well experienced with that work. Now I am working in a Software company called Smart Software Ltd. as an Android Developer. So I am very well experienced by working with many projects before. What you can expect? - Fully satisfaction - 100% solid app by android studio. So no problem to publish in google play store - Beautiful Material design Features that I will provide : - Google Map - Restful API to connect Mobile app with the server - Authentication (Login/Registration with verification code) - Firebase - SQLite Database - Save data offline - Files and Directories - Data Security (Encryption/Decryption) Tools that I will use : - Android Studio - Ui/Ux design - Java - XML for design Thank you so much for patiently reading the entire article.