Hire the Best Android Developers

We are a team of experienced designers, frontend and backend developers, and AWS experts with over a year of experience in web development. We specialize in designing, developing, and deploying high-quality digital solutions tailored to your needs. Our Services: Full-Stack Web Development (MERN) – Single Page Applications (SPAs) Android App Development UI/UX & Web Design AWS Cloud Solutions – Deployment, Optimization, and Management Web Scraping & Data Extraction Whether you need a scalable web application, a modern mobile app, or cloud infrastructure setup, we provide end-to-end solutions to bring your ideas to life.

Google-certified Android Developer Expert building production-grade apps for fintech and banking. 5+ years, zero critical post-launch failures. Clean Architecture, real transactions, real users. I've shipped Android apps that handle real-world pressure, not just demos: 1. Led full-stack Android development for fintech apps processing live transactions with high-security requirements 2.Built consumer lifestyle apps with sustained daily active users and strong retention rates 3.Delivered across the full Android stack: from architecture decisions to Play Store deployment I architect before I code. Every project starts with a clear structure, MVVM or Clean Architecture so future features are fast to add and cheap to change. Clients get readable, tested, documented code that their next developer won't curse at. Core stack: Kotlin, Jetpack Compose, MVVM, Clean Architecture, Coroutines, Retrofit, Room, Hilt/Dagger, Firebase, RESTful APIs, Google Play deployment. Domains: fintech, banking, lifestyle apps. If you're building an Android app that needs to hold up under real usage, not just pass a demo, send me a message. I typically respond within 12 hours.

Hi I am Edmer, I live in Shibuya, Tokyo, with around 10 years of IT experience as a web app and mobile app Engineer, I specialize in Typescript, Kotlin, Swift, Dart, Objective-C and Java Throughout my career, I’ve developed a strong track record in product design, implementation, integration testing, and bug fixing for Web, Android, iOS applications. I've had the opportunity to work on a variety of web and mobile applications, particularly in the E-COMMERCE space, including shopping carts and IoT applications. I’m passionate about creating user-friendly and innovative app solutions, and I’m excited to bring my expertise to new challenges. I have a Project Leader experience with my first IT company in Kawasaki, Kanagawa. I had experience making an app from scratch. I can help you build your app that will be modern, visually appealing and can be user friendly.

🚀 100k+ MAU app dev experience ✅ 10yrs in the trenches: native Android Developer & Mobile Developer ✅️ Staying compliant with Google Play policies ✅️ 4.5+ average rating across launched Google Play apps ✅ 99.9% crash & ANR free users across all launched apps ✅️ Kotlin + Jetpack Compose ✅️ Hands-on experience with local LLMs, MediaPipe, LiteRT / TFLite and AI-powered apps ✅️ Hands-on experience with Kotlin Multiplatform ( KMP , CMP ) ✅️ 5-star feedback from past clients ✅️ 100% JSS ✅️ 30+projects delivered As a 10yrs Android Developer & Kotlin Developer, I help founders build, scale, and maintain complex apps, fix "vibe-coded" app performance, and integrate on-device AI / LLMs to save cloud costs. In 2026 I specialize in: - on-device AI integration using MediaPipe / LiteRT / Google ML Kit / TensorFlow ( Object detection , Face detection , Pose detection , Text summarizing, OCR , TTS, STT ); - video / media editing apps ( FFMpeg , AndroidX Media3 , MediaCodec ); - build, improve and maintain media , social , edtech, utility, productivity tools); - performance optimization , bug fixing , firebase crash resolution and ANRs 🌟🌟🌟🌟🌟 Recent feedback : "I was particularly impressed by his strong attention to detail - nothing was overlooked, and the quality of the work consistently met high standards. He showed real commitment to the project, staying engaged and proactive throughout the development process. His regularity and consistency in delivering work made collaboration smooth and reliable." - Neil 🚀 Also I've been building my own Android apps so that gives me a deep understanding of not only a technical part but also ASO and monetization strategy. ✅️ Recent large-scale projects: --- PDF Maker & Reader (130k+ installs , 🌟4.6 on Google Play) Role: Android Developer / Android App Developer / Kotlin Developer I recently built this high-performance Android app from scratch based on Figma mockup using Kotlin. It allows users to quickly convert images to PDF and edit existing PDFs using a fast, local-first architecture. The app has achieved 130k+ downloads and 8k monthly active users on Google Play, with the crash rate lower than 0.1%. --- --- US Medical Education App (COMQUEST for COMLEX & COMAT Prep) Role: Android Developer / Android App Developer / Mobile Developer As part of an international team alongside iOS Developer and Web Developer, I built this Android app from scratch based on Figma designs for US medical students. Continue providing ongoing support for this project, ensuring the mobile app remains a stable and reliable tool for users. --- --- US Automotive Video Suite app Role: Android Developer / Android App Developer / Mobile Developer In collaborating with an iOS Developer and a Full Stack Developer, I built two native Android apps from scratch as a clone of iOS apps (Dealer Video Inventory and Dealer Video Suite) that allows dealers to capture high-quality vehicle inventory videos and photos. These projects helps dealers increase sales through personalized video. --- 🌟 🌟🌟🌟🌟 "Dmitri is a pleasure to work with. He's Android programming skills are exceptional. He's always professional and easy to work with. He is very methodical in his approach. Which at times has resulted in delivery scheduling slipping a little but I rather have a good product than a hastily put together product. We're continuing to work with Dima for other projects." - Philip Whether you are looking for a Mobile Developer to lead a new project or an Android Developer to optimize an existing Java / Kotlin codebase or optimize performance, my goal is to provide technical clarity and long-term stability. As a team player for cross-platform projects I have a proven track record of working alongside iOS developers to ensure smooth releases. I also have specific experience collaborating with Flutter Developers and Full Stack Developers to bridge the gap between cross-platform Flutter / React Native code and the system features specifically by developing custom Java / Kotlin modules to handle native Android OS functionality that standard Flutter plugins can't reach. --- 🚀 My core stack: 🔸️Languages: Java , Kotlin 🔸️UI: XML , Jetpack Compose 🔸️Architecture: MVVM , MVI , Clean Architecture 🔸️Native: Android SDK , Android Studio 🔸️Multiplatform: Kotlin Multiplatform ( KMM / KMP ) / Compose Multiplatform ( CMP ) 🔸️Key features: Camera , Photo & Video capture and edit using FFMpeg , OpenGL , OpenCV ; GPS , Location , Chat , Background syncronization , WorkManager and foreground services, ofline-first approach, on-device AI / LLM , VPN / WireGuard , ExoPlayer / Media3 🔸️On-device AI integration : Video analysis , Image recognition , Object detection , Face detection , Pose Detection , Camera stream analysis , Text-to-Speech , Speech-to-Text ( MediaPipe / Google AI Edge , TensorFlow / TFLite , Google ML kit ). 🔸️Cloud AI integration : OpenAI , Gemini API

10+ years in mobile development. Flutter, Swift, Objective-C, Kotlin, Java. ✅ OOP, FRP, Protocol Oriented Programming, Reactive Programming ✅ Architecture Patterns: MVC, MVP, MVVM, Viper, Clean Swift, RxSwift, RxJava, GAA ✅ Understanding & ability to leverage iOS and Android features ✅ JSON, REST API ✅ Custom transition and animation ✅ Build chat applications ✅ Git; ✅ Agile Methodology ✅ Friendly, Flexible, Punctual, and Professional ✅ Working on iOS and Android apps since 2011 ✅ Fluent English ✅ 9000+ hours billed on Upwork ✅ Worked with successful startup companies ✅ 100% Job Success ✅ Agile Methodology ✅ $300,000+ billed

Building an Android، iOS app, or stuck with one that's broken? Before I give you a number, I want to look at what you already have. The code, the designs, the crash reports, a screen recording of the bug, whatever exists. Half the time the problem isn't what someone was told it was. I'd rather find that out in the first two days than in week three. So send me the app, the Figma file, or just a description of what's going wrong. You'll get an answer within a day: what I think is actually happening, roughly how long it takes, and whether it's worth doing at all. If it's not something I should be the one building, I'll tell you that. I'm a senior Android developer. Four years of it, across telecom, fintech, e-commerce, streaming and TV. Most recently at Vodafone Egypt, before that e-finance and Mtor. Some of what that looked like: A payment module at Vodafone that was quietly failing about a fifth of its transactions. Found it, fixed it, transaction success went up 20% on an app serving 50M+ users. Crash rate came down 15% and load time 10% over the same period. An app at e-finance that was 80MB. Got it to 38MB. Downloads went up 25%, mostly from people on slower connections who'd been giving up on the install. Two e-commerce apps built from scratch at Mtor with Jetpack Compose, plus courier and supplier apps on a reactive MVVM architecture, with Firebase and Bitrise CI/CD behind them. A live streaming app I built on my own, with real-time video, in-app games, digital gifts and in-app purchases. A Flappy Bird-style game running on Android, iOS, desktop and web from a single Kotlin codebase using Compose Multiplatform. On Upwork specifically: an Android TV app in Kotlin, a Jetpack Compose performance bug nobody had been able to pin down, a web scraping Android app, and an Android payment terminal build. I work in Kotlin and Java, Jetpack Compose, Android SDK and Android Studio, Flutter for hybrid and cross-platform builds, and Kotlin Multiplatform when a project needs Android and iOS from one shared codebase. Clean Architecture, MVVM, Coroutines and Flow, Retrofit and Ktor, Firebase, Room, Hilt, REST APIs, unit testing with MockK. I've mentored seven Android interns; two of them got hired full-time. The thing most clients are actually worried about isn't whether the developer can code. It's whether he'll go quiet, or hand back something the next person can't maintain. I write code the next person can read, and I tell you early when something's going to take longer than I said. Top Rated on Upwork with 100% Job Success. Tell me what you're building, or what's broken.