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Need a highly responsive, reliable Flutter developer to build a new app from scratch, launch an MVP, crush stubborn bugs, or integrate APIs today? I deliver production-ready mobile products fast, without the headaches. I am an experienced cross-platform mobile engineer specializing in delivering clean, reliable applications for iOS and Android. Whether you need a fresh application engineered correctly from day one, or have an existing app that is crashing, lagging, or stalled on a critical feature, I can step in and deliver. I don't rely on brittle, unverified AI shortcuts. I write manual, high-quality code from the ground up so your product works flawlessly for your users and scales smoothly as you grow. Core Areas of Support Available Immediately: 1. Greenfield App & MVP Development: Turn your design prototypes (Figma) or ideas into fully functional, launch-ready iOS and Android apps. 2. Quick Bug Fixing & Troubleshooting: Instantly isolate and resolve app crashes, broken UI layouts, and state management lag. 3. Third-Party Integrations: Secure Stripe/Firebase/Supabase setups, authentication pipelines, and real-time data syncing. 4. Feature Additions: Fast implementation of new UI screens, complex forms, and backend API endpoint connections. I am available to start immediately, communicate clearly throughout the day, and respect your deadlines. Let’s get your project moving click the "Message" button on the top right to get started today. Keywords: Senior Mobile Developer, Flutter Architect, Dart FFI, iOS Swift, Windows Desktop, macOS Native, Clean Architecture, BLoC Pattern, Supabase, CI/CD, App Performance, Technical Debt Rescue.Mobile App Developer, Flutter Developer, iOS and Android App Development, Cross-Platform Developer, Mobile Apps, Mobile Architecture. Senior Mobile Developer, MVP Development, App Performance Optimization, Firebase Integration, Supabase Expert, CI/CD Pipelines, GitHub Actions, Legacy Code Refactoring,Flutter Architect, Clean Architecture, BLoC Pattern, State Management, Dart FFI, C++ Integration, Desktop App Development, Technical Debt Rescue.

Hey! I'm Mykyta, a mobile app developer, React Native specialist, and full-stack engineer with 10+ years of experience and 32 successfully released apps. My core specialty is end-to-end mobile app development and building high-performance applications as a dedicated ios android developer for wellness, startups, and SaaS businesses. I've hit "App of the Day" on the App Store, helped a startup secure $750k, scaled products to 100K+ active users, and delivered 30%+ growth in user retention. That's a proven track record. 🏄 React Native & Cross-Platform Expertise As a battle-tested mobile app developer, I build cross-platform applications that feel truly native. For comprehensive mobile app development, whether you're comparing React Native vs Flutter or need an expert perspective to make the right choice, I help you select the exact stack that fits your business goals, timeline, and budget. As a versatile ios android developer, I ship apps across both ecosystems using React Native, Expo, TypeScript, and JavaScript, managing the pipeline from architecture to final App Store deployment. Every professional mobile app developer knows that seamless integration requires deep platform knowledge and clean memory management — that is exactly what I bring to the table. 💻 Full Stack & End-to-End Product Ownership I own the entire product lifecycle, providing full-cycle mobile app development from web dashboards to final deployment. When you hire an all-in-one ios android developer, you get native-level client performance backed by a scalable infrastructure: Mobile: React Native, Expo, TypeScript, JavaScript, Redux, GraphQL, Reanimated, Lottie. Backend & Cloud: Node.js, Nest.js, AWS (S3, EC2), Firebase, Supabase, PostgreSQL, MongoDB. APIs & DevOps: Stripe, PayPal, Segment, Appsflyer, Sentry, CI/CD pipelines, Docker, GitHub Actions. As a React/Next.js developer, I complement every mobile product with robust web frontends. Working as your trusted mobile app developer, I ensure you get one reliable partner for the full stack. 🤖 AI Features & MVP Launch AI is no longer optional. I build intelligent mobile features — custom LLM integrations, smart AI recommendation engines, and predictive UX. Having an expert in AI-native mobile app development on your team is a massive competitive advantage. As an innovative ios android developer, I blend AI with mobile performance seamlessly. I've built MVPs from zero to App Store deployment as a skilled ios android developer dozens of times. My optimized mobile app development process focuses on agile execution, rock-solid security, award-winning UI/UX, and long-term post-launch support from a reliable mobile app developer. I focus heavily on business metrics, helping founders achieve at least a 42% ROI on their mobile investment. 🎯 My Collaboration & Communication Philosophy A great app requires more than just clean code; it demands absolute transparency and alignment. I do not operate in a vacuum. When we work together, you get clear asynchronous updates, structured Slack or Microsoft Teams communication, and weekly video syncs with measurable milestones. I deeply understand business priorities, constraints, and the critical importance of keeping deadlines, making our partnership stress-free and highly predictable from day one. ⚙️ Scalable Architecture & Clean Code Approach Production-ready apps require careful planning. I focus on creating clean, modular, and maintainable codebases using cutting-edge design patterns. This means your application will be ready for rapid feature additions, team scaling, and heavy traffic loads without requiring a complete rewrite in six months. I prevent technical debt early by implementing strict TypeScript typing, optimized component re-rendering, and robust offline data caching mechanisms right from the start. ⚙️ Who I Work With I'm a great fit if you're looking for an experienced ios android developer to build: A React Native cross-platform app for iOS & Android with complex business logic. A SaaS mobile product with a Node.js, AWS, or Firebase infrastructure. An AI-powered mobile experience designed by a top-tier mobile app developer. A wellness or health tech application (deep niche domain experience). 📱 Core Summary of Expertise ✔️ Mobile App Development: From wireframes to 100K+ active users and global scaling. ✔️ Mobile App Developer: Specialist in React Native, Expo, and performance optimization. ✔️ iOS Android Developer: Full-stack integration with Node.js, AWS, Firebase, and Supabase. ✔️ Web & AI Development: Next.js architecture, REST/GraphQL APIs, and LLM integration. ✔️ App Store Deployment: 32 successful apps shipped, approved, and actively maintained. Let's build something that matters. Drop me a message with your project details! Key Words: Flutter Developer | Mobile App Development | React Native Developer | Web App Development | Python Developer | Wordpress | iOS Developer | Android Developer | Mobile App Designer

👋 𝐎𝐥á! 𝐈'𝐦 𝐒𝐲𝐞𝐝 𝐒𝐮𝐟𝐢𝐚𝐧: 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫, 𝐚𝐧𝐝 𝐔𝐈/𝐔𝐗 𝐃𝐞𝐬𝐢𝐠𝐧𝐞𝐫. For over 6 years, I have helped businesses and startups across the globe design and develop efficient, scalable digital products from mobile applications to web platforms. I combine design thinking with clean, future proof development to deliver solutions that not only function well but also offer excellent user experience. 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 𝐈 𝐎𝐟𝐟𝐞𝐫: 🔹𝐔𝐈/𝐔𝐗 𝐃𝐞𝐬𝐢𝐠𝐧 (𝐅𝐢𝐠𝐦𝐚, 𝐀𝐝𝐨𝐛𝐞 𝐗𝐃, 𝐒𝐤𝐞𝐭𝐜𝐡) Crafting intuitive and responsive user interfaces for websites and mobile apps, with a focus on usability and conversion. 🔹𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐖𝐞𝐛 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 Custom websites, and web applications with MERN Stack, PHP, Laravel, Next.js, and more. 🔹𝐅𝐥𝐮𝐭𝐭𝐞𝐫 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 Cross-platform mobile applications with smooth performance and modern UI for iOS and Android. 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐀𝐩𝐩𝐫𝐞𝐜𝐢𝐚𝐭𝐞 𝐖𝐨𝐫𝐤𝐢𝐧𝐠 𝐰𝐢𝐭𝐡 𝐌𝐞? ✔️ 𝐌𝐮𝐥𝐭𝐢𝐝𝐢𝐬𝐜𝐢𝐩𝐥𝐢𝐧𝐚𝐫𝐲 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞– Design, frontend, and backend — all under one roof. ✔️ 𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬-𝐎𝐫𝐢𝐞𝐧𝐭𝐞𝐝– I design with your goals in mind: conversions, engagement, or user satisfaction. ✔️ 𝐑𝐞𝐥𝐢𝐚𝐛𝐥𝐞 𝐂𝐨𝐦𝐦𝐮𝐧𝐢𝐜𝐚𝐭𝐢𝐨𝐧– I maintain smooth communication and provide regular progress updates. ✔️ 𝐒𝐜𝐚𝐥𝐚𝐛𝐥𝐞 & 𝐂𝐥𝐞𝐚𝐧 𝐂𝐨𝐝𝐞– All code is written with performance and long-term scalability in mind. If you're looking for a dependable professional to help launch your next web or mobile app — let's connect.🚀 ________________________________________________________________________

📍 React Native development for production mobile apps 📍 Full stack engineering for complex backend systems 📍 AI Agent Development for automation and intelligent workflows For more than 11 years, I’ve been working in mobile app development and full stack development, delivering scalable web platforms, high-performance mobile apps, and modern AI-driven systems. This combination allows me to build products end-to-end, from mobile UI to backend architecture and AI logic. 📱 Mobile App Development & React Native Expertise As a React Native developer, I’ve built and scaled mobile applications used in fintech, real estate, healthcare, marketplaces, and social platforms. My mobile app development experience includes: - Cross-platform iOS and Android apps - Complex user roles and permissions - Real-time features (chat, live updates, tracking) - High-load backend integrations - Clean architecture designed for long-term growth One of my key projects Breeze, a real estate mobile platform was developed end-to-end as a full stack developer and later raised $3M+ in investments. That experience strongly shaped how I approach architecture, scalability, and product quality. 🤖 AI Agent Development & Automation In parallel with product engineering, I focus heavily on AI Agent Development. As an AI Agent Developer and AI Automation Expert, I design systems that go far beyond simple chatbots. I build: - AI agents with planner-executor architecture - Multi-agent systems with task orchestration - AI chatbots connected to business data - AI automation pipelines for operations, research, and analytics - RAG systems using embeddings and vector databases These AI agents are designed to interact with real systems, APIs, CRMs, databases, internal tools, and operate as part of a real product ecosystem. My goal is always the same: turn AI from an experiment into a reliable, controllable product component. 🔗 Where AI meets Full Stack Development What makes my approach different is the combination of: AI Developer + Full Stack Developer + Mobile App Developer This means: - AI agents integrated into web platforms - Mobile apps powered by AI logic - Backend services managing agent execution - Dashboards for monitoring and control - Secure and scalable infrastructure Instead of isolated AI tools, clients get complete AI-powered products. 💡Clients usually come to me when they need: - A senior engineer who understands product logic - A CTO-level partner, not just a coder - Clean architecture from day one - Systems prepared for growth, investment, and scale That’s why many clients stay long-term and treat me as a technical partner, not a temporary freelancer.

🚀 Is your MVP taking months instead of weeks? 💡 Tired of developers who don’t understand your business and just write code? I help startup founders launch production-ready MVPs in 𝟮–𝟯 𝘄𝗲𝗲𝗸𝘀, using a clear, 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀-𝗼𝗿𝗶𝗲𝗻𝘁𝗲𝗱 development approach. As an Upwork Expert-Vetted React Front End Developer with a Master’s in Computer Science and 7+ years of experience building scalable SaaS platforms, dashboards, and custom APIs, I translate complex tech into clear product decisions that drive results. I’ve worked with startups from idea stage to Series B, as well as enterprise clients like 𝗦𝗮𝗺𝘀𝘂𝗻𝗴, 𝗛𝗼𝗿𝗶𝘇𝗼𝗻𝘀, and 𝗕𝗲𝗻𝘁𝗹𝗲𝘆 - always focusing on fast delivery, clean architecture, and measurable outcomes. 💬 Clients’ Feedback: “𝘎𝘳𝘦𝘢𝘵 𝘦𝘹𝘱𝘦𝘳𝘪𝘦𝘯𝘤𝘦 𝘸𝘰𝘳𝘬𝘪𝘯𝘨 𝘸𝘪𝘵𝘩 𝘒𝘺𝘳𝘺𝘭𝘰! 𝘏𝘦 𝘥𝘦𝘭𝘪𝘷𝘦𝘳𝘦𝘥 𝘢 𝘩𝘪𝘨𝘩-𝘲𝘶𝘢𝘭𝘪𝘵𝘺 𝘙𝘦𝘢𝘤𝘵 + 𝘛𝘺𝘱𝘦𝘚𝘤𝘳𝘪𝘱𝘵 𝘧𝘳𝘰𝘯𝘵𝘦𝘯𝘥 𝘴𝘵𝘺𝘭𝘦𝘥 𝘸𝘪𝘵𝘩 𝘛𝘢𝘪𝘭𝘸𝘪𝘯𝘥 𝘊𝘚𝘚, 𝘣𝘶𝘪𝘭𝘵 𝘸𝘪𝘵𝘩 𝘤𝘭𝘦𝘢𝘯 𝘤𝘰𝘥𝘦 𝘢𝘯𝘥 𝘴𝘵𝘳𝘰𝘯𝘨 𝘢𝘵𝘵𝘦𝘯𝘵𝘪𝘰𝘯 𝘵𝘰 𝘥𝘦𝘵𝘢𝘪𝘭. 𝘊𝘰𝘮𝘮𝘶𝘯𝘪𝘤𝘢𝘵𝘪𝘰𝘯 𝘸𝘢𝘴 𝘴𝘮𝘰𝘰𝘵𝘩 𝘢𝘯𝘥 𝘥𝘦𝘭𝘪𝘷𝘦𝘳𝘺 𝘰𝘯 𝘵𝘪𝘮𝘦 - 𝘩𝘪𝘨𝘩𝘭𝘺 𝘳𝘦𝘤𝘰𝘮𝘮𝘦𝘯𝘥!” “𝘒𝘺𝘳𝘺𝘭𝘰 𝘥𝘦𝘭𝘪𝘷𝘦𝘳𝘦𝘥 𝘤𝘭𝘦𝘢𝘯, 𝘴𝘤𝘢𝘭𝘢𝘣𝘭𝘦 𝘤𝘰𝘥𝘦 𝘢𝘯𝘥 𝘩𝘢𝘯𝘥𝘭𝘦𝘥 𝘧𝘳𝘰𝘯𝘵-𝘦𝘯𝘥 𝘥𝘦𝘷𝘦𝘭𝘰𝘱𝘮𝘦𝘯𝘵 𝘸𝘪𝘵𝘩 𝘱𝘳𝘦𝘤𝘪𝘴𝘪𝘰𝘯. 𝘊𝘰𝘮𝘮𝘶𝘯𝘪𝘤𝘢𝘵𝘪𝘰𝘯 𝘸𝘢𝘴 𝘴𝘮𝘰𝘰𝘵𝘩, 𝘢𝘯𝘥 𝘩𝘦 𝘸𝘢𝘴 𝘱𝘳𝘰𝘢𝘤𝘵𝘪𝘷𝘦 𝘪𝘯 𝘴𝘰𝘭𝘷𝘪𝘯𝘨 𝘵𝘦𝘤𝘩𝘯𝘪𝘤𝘢𝘭 𝘤𝘩𝘢𝘭𝘭𝘦𝘯𝘨𝘦𝘴. 𝘏𝘪𝘨𝘩𝘭𝘺 𝘳𝘦𝘤𝘰𝘮𝘮𝘦𝘯𝘥𝘦𝘥 𝘧𝘰𝘳 𝘸𝘦𝘣 𝘥𝘦𝘷𝘦𝘭𝘰𝘱𝘮𝘦𝘯𝘵, 𝘈𝘗𝘐 𝘪𝘯𝘵𝘦𝘨𝘳𝘢𝘵𝘪𝘰𝘯, 𝘢𝘯𝘥 𝘱𝘦𝘳𝘧𝘰𝘳𝘮𝘢𝘯𝘤𝘦-𝘧𝘰𝘤𝘶𝘴𝘦𝘥 𝘦𝘯𝘨𝘪𝘯𝘦𝘦𝘳𝘪𝘯𝘨 𝘱𝘳𝘰𝘫𝘦𝘤𝘵𝘴.” “𝘏𝘢𝘱𝘱𝘺 𝘸𝘪𝘵𝘩 𝘴𝘱𝘦𝘦𝘥 𝘢𝘯𝘥 𝘲𝘶𝘢𝘭𝘪𝘵𝘺!” Here’s what my clients value most: 🎯 Business-first mindset - I understand your priorities and align tech decisions with them ⚙️ Rapid MVP execution - from concept to launch in weeks, not months 🧩 Front End ownership - React, Next.js, API integrations, Tailwind, MUI and scalable architectures 🧩 Full Stack ownership - MERN, Express.js, Node.js, MongoDB 🧠 Strategic guidance - helping you define what truly matters for your first release I don’t take on last-minute fixes or e-commerce stores - I focus on SaaS and MVP projects where clear product thinking makes the difference. If you’re a founder looking for a reliable technical partner who speaks your language and delivers predictably - let’s build something great together. 🛠️ Tech Stack & Tools: • Languages & Libraries: React, React.js Node.js, JavaScript, ReactJS TypeScript, ReactJS NodeJS, Python, PHP, React Native, NextJS, MERN Stack • Styling: Material UI, Tailwind CSS, MUI React, custom SCSS / CSS • Build Tools: Webpack, Vite, NPM; • UI/UX: Figma, Frontend Design tools for pixel-perfect visuals; • Visualization: Leaflet, maps & data-driven charts. • Databases: MongoDB, PostgreSQL, MySQL, Firebase. • State Management: Redux, Zustand, RTK Query. • Cross-browser / cross-platform manual testing.