Hire the Best Android Developers
in Poland

With over 8 years of experience, I specialize in developing native Android applications for high-profile clients and businesses. My expertise encompasses the entire app development process, from planning and development to publishing, maintenance, and support, ensuring the delivery of high-quality Android applications. If you're seeking to create functional Android apps with effective design and performance, you've come to the right place. I understand how to satisfy your customers and increase your sales. I take on a limited number of projects at a time, allowing me to provide the necessary focus and time each one deserves. My commitment to quality control ensures that every project receives meticulous attention. Customer satisfaction is my top priority, and I consistently go the extra mile. I empathize with both my clients and their end-users, considering the unique needs, expectations, and preferences of the target audience. Throughout my process, I employ empathic design and techniques to uncover user values and aspirations. Strengths and skills: - Mastery of various architecture patterns, including MVP, MVVM, and MVI. - Proficiency with Firebase services such as push notifications, dynamic linking, analytics, Crashlytics, real-time NoSQL databases, and cloud functions. - Experience with Amazon Web Services, including EC2, API Gateway, S3 Buckets, Lambda functions, and push notifications. - Skilled in Google services like authentication, Google+, voice recognition, image recognition, text processing, and machine learning. - Familiarity with Dropbox storage APIs. - Integration of social media platforms such as Twitter, LinkedIn, and Facebook for authentication, analytics, and crash reporting. - Comprehensive knowledge of various application tools, including background services, system-level communications, file storage, notifications, offline apps, communication apps, wallpaper apps, and system tracking apps. Development tools and professional techniques: • Project Management Tools: Jira, Trello • Version Control Systems: Bitbucket, GitHub, GitLab, etc. • Communication Platforms: Skype, Zoom, Google Meet, Webex, Teams • Android Studio • IntelliJ IDEA • Postman • Charles Proxy I am eager to establish long-term relationships with clients and build a strong, ongoing working partnership. I will ensure that the overall budget is reasonable for you and your team. With lower maintenance costs, you can overcome any obstacles and lead a successful Android product to market.

🚀 Mobile App Developer with 8+ years building high-performance iOS and Android applications that reach real users and drive real results. I specialize in cross-platform and native development using React Native, Expo, Flutter, FlutterFlow, and Swift - delivering polished, production-ready apps from concept to App Store launch. My background blends technical depth with a sharp sense for user experience and product thinking. Before going full-time into mobile development, I worked in digital marketing and e-commerce, which gave me a valuable edge: I don't just build apps - I build apps that convert, retain users, and perform in the real world. That marketing DNA means I understand mobile growth, push notification strategy, user onboarding flows, and ASO (App Store Optimization) at a level most developers simply don't. 🔧 WHAT I BUILD ✅ Cross-platform apps with React Native + Expo (single codebase for iOS & Android) ✅ Flutter & FlutterFlow apps - rapid UI development with pixel-perfect results ✅ Native iOS apps in Swift / SwiftUI for performance-critical use cases ✅ Real-time features: live chat, push notifications, geolocation, background sync ✅ Backend integrations: REST APIs, GraphQL, Firebase, Supabase, AWS Amplify ✅ Third-party SDKs: Stripe, RevenueCat, Twilio, Google Maps, OneSignal, Sentry ✅ App Store & Google Play deployment - certificates, signing, submission, review cycles ✅ Legacy app refactors, performance tuning, and code audits 💡 HOW I WORK I believe great mobile apps are built through clear communication, well-structured code, and relentless attention to detail. My workflow is transparent: I document decisions, write clean and maintainable code (TypeScript-first), and keep you in the loop at every milestone. I've worked with startups, scale-ups, and small businesses across the US and Europe - handling full project lifecycles solo or as part of distributed engineering teams. I adapt quickly to existing codebases, and I'm comfortable leading architecture decisions as well as executing within defined specs. I'm responsive, deadline-aware, and genuinely invested in the success of every product I touch. I treat your app like it's mine. 🛠 TECH STACK AT A GLANCE Mobile: React Native, Expo SDK, Flutter, FlutterFlow, Swift, SwiftUI, Objective-C (legacy) State Management: Redux Toolkit, Zustand, Riverpod, MobX, Context API Navigation: React Navigation, Expo Router, Flutter Navigator 2.0 Backend & Cloud: Firebase (Auth, Firestore, Storage, Functions), Supabase, Node.js, REST, GraphQL Databases: SQLite, Realm, AsyncStorage, Core Data DevOps & CI/CD: GitHub Actions, Fastlane, EAS Build, TestFlight, Bitrise Testing: Jest, Detox, Flutter Test, XCTest Design: Figma (can work from wireframes or full design specs) 🌍 INDUSTRIES SERVED E-commerce & retail apps | Health & fitness | Marketplace platforms | SaaS mobile clients | Social & community | On-demand services | EdTech | FinTech (payments, wallets) 📦 WHY CLIENTS CHOOSE ME → Full ownership from wireframe to live App Store listing → Strong English communication, US timezone overlap available → No disappearing acts - consistent updates and Slack/email availability → Experience with both greenfield projects and messy legacy codebases → Business-aware developer who thinks beyond the ticket Let's build something great together. Send me a message and let's discuss your project. KEYWORDS: mobile app developer, React Native developer, Flutter developer, Expo developer, iOS developer, Android developer, Swift developer, SwiftUI, FlutterFlow, cross-platform app, hire mobile developer, React Native freelancer, Flutter freelancer, app development, mobile app design, Firebase integration, Supabase, App Store submission, Google Play deployment, TypeScript mobile, Redux Toolkit, Zustand, Riverpod, REST API integration, GraphQL mobile, push notifications, Stripe in-app payments, RevenueCat subscriptions, real-time chat app, geolocation app, e-commerce mobile app, SaaS mobile client, startup app development, MVP development, app audit, performance optimization

Hello. I'm an AI engineer, full-stack iOS/Android/PHP/JavaScript/TypeScript/React/React Native developer and problem solver with more than 17 years of experience iOS/Android/PHP/JavaScript/TypeScript/React/React Native developer and problem solver with more than 17 years of experience. Specializing in MERN and LAMP stacks, artificial intelligence (AI). I embrace modern AI-powered development workflows using tools like 🤖 Claude Code, 🧠 Cursor and 🏄 Windsurf IDEs. What I do: 📱 Mobile apps, 🖥️ Desktop apps, 🌐 Websites, ⚙️ Web services, 👨🏻‍💻 Admin Backends, 🧩 API for them, 🤖 ChatGPT integrations. I embrace modern AI-powered development workflows using tools like 🧠 Cursor IDE and 🤖 Claude Code. Kinds of software I've created: 🛍️ Shopping & online stores, 🏃 Sports, 🎮 Games, 🧘 Medicine & well-being, ✈️ Travel, 💰 Bank systems, 📣 Ad networks, 🛡️ Insurance, 🛬 Landing pages. I have strong skills in the following programming languages: 📜 TypeScript, ☕ JavaScript, 🦅 Swift, 🎯 Objective-C, 🐘 PHP, 🐱 Kotlin, ☕ Java. Frameworks and technologies: 🦕 Deno & Node, ⚛️ React, ⚛️ React Native, 🤖 ChatGPT API, 🔮 Anthropic AI API, 🐻 Zustand, ⚛️ Electron, 🆁 Redux, 🆁 Redux Toolkit, 🐆 Nest js, 🅽 Next js, 🆅 Vue, 🐆 Fastify, 🥤 Fresh, 🅰 Apollo GraphQL Client and Server, 🔌 Relay, 🅼 MobX, 🌳 Koa, 🅴 Express js, 📈 GraphQL, 😎 Swagger, 💨 Tailwind, 🦅 SwiftUI, 🎥 Lottie Files, 🥤 Cocoa Touch, 🥥 Cocos2D, 🅻 Laravel, 🎵 Symfony, 🆈 YII and YII2, 🔥 CodeIgnitor, 🆉 Zend Framework, 📍 CoreLocation, 🎥 CoreAnimation, 🏠 Apple HomeKit, ❤️ Apple HealthKit, 💰 Superwall. Databases: 🍃 Mongo, 🐬 MySQL, 🪶 SQLite, 🍉 Watermelon DB, ⚡️ Supabase, 🔥 Firebase, 🐘 Postgres, 📄 TypeORM, ➡️ Doctrine, ⚪ DynamoDB/PartiQL, 🔴 Oracle, 🅲 CoreData, 🟣 Realm. Cloud Computing: 🐳 Docker, ☸️ Kubernetes, ☸️ Google Kubernetes Engine, 🌊 DigitalOcean Cloud, 🅷 Heroku, 🆁 Render, ☀️ Netlify, 🅰 Microsoft Azure, 🔺 AWS Lambda. I have developed over 20 iOS apps, 15 React Native apps, several Android apps, APIs for some of them, over 20 websites. I'm proficient in problem-solving and have solid track record of success in solving complex problems for teams that have struggled to do so on their own. I like to explore modern technologies, build amazing user interfaces, develop software of any complexity. I always strive to create apps and sites according to the best practices, thoroughly test them and provide the best user experience. It's important to me to write clean and readable source code which is easy to understand and maintain for any other developer.

Java, C#, C++, web-kit+JS(React), PHP, SQL but mainly I work with Android Studio. I have a game in Google Play but it's in closed testing 'cause I don't have testers yet.

Looking for a robust, scalable, and high-performance mobile solution? I am a specialized Android Developer with a strong focus on Kotlin Multiplatform (KMP) and modern native development. With a Master's degree in Applied Mathematics and over 5 years of intensive commercial experience, I don't just write code—I solve business problems using technology. My goal is to help you launch products faster and more efficiently, whether it's a complex enterprise solution, a consumer app, or a cross-platform project using KMP. 🚀 What I Bring to Your Project: - Fintech & Security: Proven track record with sensitive financial data, secure APIs, and strict compliance (ATON Investment Co.). - Modern & Legacy Stack: Expert in Kotlin/Jetpack Compose with strong skills in refactoring legacy Java code. - KMP Efficiency: Share business logic between Android/iOS to cut budget and time-to-market. - Complex Integrations: Hardware (NFC, printers), Fiscalization systems, Custom UI, and CI/CD pipelines. 🏆 Key Achievements: - ATON (Fintech): Developed ATON Line investment app for high-net-worth clients. Refactored Java→Kotlin, ensured security compliance, and optimized architecture (MVP→MVI). - Bark (Logistics): Led development of a Kiosk Self-Service App with NFC integration and fiscalization. Worked directly with Chinese technical documentation. - Startups & Enterprise: Built scalable UI Kits, multi-language apps (XmarineIQ), and established CI/CD processes from scratch. 🛠 Tech Stack: Kotlin, Java, Jetpack Compose, KMP, MVVM/MVI, Clean Architecture, Retrofit, Ktor, Room, Koin, Dagger2, GitLab CI/CD, Firebase. I actively use Claude Code (Anthropic's AI coding assistant) as part of my development workflow to accelerate delivery and maintain high code quality. 🤝 Why Work With Me? - Strong Math Background: Ensures logical, optimized, and bug-free algorithms (crucial for finance). - Business-Oriented Mindset: I focus on ROI and product goals, not just closing tickets. - Enterprise Standards: Experienced in code reviews, team collaboration, and delivering stable releases without micromanagement. - AI-Augmented Development: I leverage Claude Code to speed up routine tasks, catch issues early, and keep focus on architecture and business logic — delivering more in less time. I am ready to dive into your project and deliver results that exceed expectations. Let's discuss how I can help bring your app idea to life! 📩 Invite me to your job, and let's get started!

We close the gap between fancy AI-built apps that crash on scale and too expensive old-school approach development. By combining 15+ years of deep engineering foundation with a specialized AI-driven delivery workflow, our small senior team operates as a "force multiplier." We deliver the architectural complexity of a 10-person agency with the speed and cost-efficiency of a single senior lead. We don’t just "use AI" - we’ve re-engineered the development lifecycle to remove the two biggest bottlenecks in mobile dev: management overhead and repetitive coding tasks. ● AI-Augmented Architecture: Instead of a bloated agency team, you work directly with a compact senior cell. We use AI internally to automate routine coding, freeing us to focus entirely on complex architecture, and externally to embed LLM agents into your app, replacing heavy backend infrastructure ● Senior-Only Execution: We use 15+ years of experience to design the architecture and set up precise, automated quality gates. We validate the codebase, ensuring everything functions perfectly as a whole without accumulating technical debt 𝗪𝗵𝗮𝘁 𝗬𝗼𝘂 𝗚𝗲𝘁 We can build your project from zero or pickup existing codebase. ● Full-Cycle Ownership: End-to-end delivery including technical breakdown, UI/UX oversight, backend integration (Node.js/Python), and App Store deployment ● From "Lovable" to Scalable: We take your MVP and ensure it has an enterprise-grade foundation. No technical debt that forces a rewrite after your first 1,000 users ● Code Recovery & Audits: We step into "messy" or incomplete projects, identify architectural bottlenecks, and refactor them into stable, scalable products 𝗢𝘂𝗿 "𝗡𝗼-𝗥𝗶𝘀𝗸" 𝗚𝘂𝗮𝗿𝗮𝗻𝘁𝗲𝗲 ● 48-Hour Technical Assessment: Within two days of our first call, you receive a realistic breakdown, a fixed-estimate proposal, and a clear path to production ● Production-Quality from Day One: If our code audit doesn't reveal actionable improvements in your current project, we’ll tell you for free. We stand by "Clean Architecture" that your future in-house team can easily maintain 𝗪𝗵𝘆 𝗨𝘀? In a world of "GPT-wrappers" and junior developers, we are the architects who stayed hands-on. We are the only team that combines 15 years of "old-school" engineering discipline with a "superhuman" AI-augmented workflow to get you to production while others are still in discovery. 𝗛𝗼𝘄 𝘁𝗼 𝗦𝘁𝗮𝗿𝘁 ① Message us with a brief summary of your project (even if it's messy or incomplete) ② We’ll conduct a quick technical sync to understand your goals ③ Get your roadmap: Within 48 hours, you’ll have a clear execution plan to reach production-ready status I'd be happy to discuss the idea and help determine the best technical approach.