👋 Hi, I’m Dmytro - a Full Stack Developer, Mobile App Developer, and founder of Inmost. Together with my engineering team, I help startups and companies build production-ready web and mobile products using React Native, React, Node.js, iOS, Android, AWS, Firebase, BLE, and IoT integrations. If you need a Full Stack Developer who can build more than a website, or a Mobile App Developer who can build more than app screens, we can help with the full product layer: frontend, backend, mobile apps, APIs, databases, cloud infrastructure, QA, and scalable architecture. We are a Full Stack Developer and Mobile App Developer team with 50+ delivered web and mobile projects, 6,000+ engineering hours, 20+ React Native mobile applications, 15+ native iOS Swift production apps, and 20+ MVP projects for startups. We build reliable software products, not just code: web apps, mobile apps, SaaS platforms, admin dashboards, backend APIs, cloud infrastructure, real-time systems, BLE apps, IoT mobile applications, wearables, and connected device applications. Our engineering process is built around quality, structure, and speed. We use AI-assisted engineering workflows to accelerate planning, development, testing, documentation, and delivery. But AI never replaces engineering judgment: architecture, code review, QA, testing, and production releases stay under experienced engineers’ responsibility. What we build: ⚙️ Full Stack Development As a Full Stack Developer team, we build complete products from frontend to backend. Our full stack development work includes React development, Node.js development, backend development, REST API development, SaaS platforms, web applications, admin panels, dashboards, authentication, payments, databases, cloud infrastructure, and scalable systems. 🌐 Web App Development We build web applications for startups and companies that need reliable and easy-to-maintain products. Our web app development experience includes SaaS development, marketplace platforms, CRM systems, internal tools, admin dashboards, customer portals, real-time web applications, and backend-connected platforms. ⚛️ React & Node.js Development If you need a Full Stack Developer for React, Node.js, TypeScript, PostgreSQL, MySQL, Firebase, or AWS, we can support both frontend and backend development. Our Node.js development experience includes backend APIs, REST API development, third-party integrations, payment systems, real-time features, cloud services, and scalable backend architecture. 📱 Mobile App Development As a Mobile App Developer team, we build iOS and Android applications for startups and companies that need production-ready mobile products. Our mobile app development work includes MVP mobile apps, enterprise mobile systems, SaaS mobile apps, healthcare applications, marketplace apps, real-time mobile platforms, and cross-platform mobile development. ⚛️ React Native Development We have delivered 20+ React Native mobile applications for iOS and Android. If you need a Mobile App Developer for React Native development, we can handle cross-platform development, backend-to-mobile integration, API-driven mobile architecture, Firebase integration, push notifications, payments, chat, video, real-time updates, and scalable MVP development. 🍏 iOS & Android App Development Our Mobile App Developer team has strong iOS app development and Android app development experience, including 15+ iOS Swift production applications. We work with Swift, Kotlin, Java, API integration, authentication, in-app purchases, push notifications, mobile app testing, performance optimization, and App Store / Google Play-ready products. 📡 BLE, IoT & Wearables One of our strongest technical areas is BLE and IoT mobile app development. We build mobile applications connected to hardware devices, sensors, wearables, and cloud platforms: Bluetooth Low Energy apps, BLE iOS apps, BLE Android apps, AWS IoT Core, MQTT, wearable app development, real-time device communication, sensor data streaming, and IoT device integration. ☁️ Backend, API & Cloud Architecture A serious web or mobile product needs more than a frontend. As a Full Stack Developer and Mobile App Developer partner, we support products with backend development, API development, REST API integration, PostgreSQL, MySQL, Firebase, AWS, AWS IoT Core, real-time systems, and scalable architecture. Clients hire us when they need a Full Stack Developer or Mobile App Developer who can build reliable web apps, mobile apps, SaaS platforms, React Native products, Node.js backends, admin dashboards, API-driven platforms, BLE apps, IoT mobile applications, and connected device systems. If you are looking for a Full Stack Developer or Mobile App Developer to build or scale your product, let’s discuss how to turn it into reliable, production-ready software.

Top Rated Plus Full Stack & React Native Developer with 10+ years of experience building high-quality mobile and web applications for startups, businesses, and growing brands. I have successfully delivered 100+ live mobile applications for Android and iOS with a strong focus on performance, clean design, smooth user experience, and scalable architecture. My goal is simple: build reliable products that help businesses grow. I specialize in React Native development and create fast, modern cross-platform apps that work seamlessly across all devices. Whether you need a business app, eCommerce platform, booking system, social app, or custom solution, I can help turn your idea into a polished product. What I Can Help You With: • Cross-platform mobile app development (Android & iOS) • Full Stack web and mobile solutions • UI implementation with responsive and modern design • API integration and backend connectivity • Real-time features such as chat, notifications, and live updates • Firebase integration • Payment gateway integration • Google Maps and location-based features • Authentication and social logins • App optimization and performance improvements • Bug fixing and long-term maintenance Technologies & Tools: • React Native • React.js • Expo • TypeScript & JavaScript • Node.js • Firebase • Redux Toolkit • GraphQL & REST APIs • MongoDB & PostgreSQL • Shopify & WooCommerce Integration Why Clients Work With Me: • Clear communication throughout the project • Focus on clean, maintainable, and scalable code • Reliable delivery and attention to detail • Flexible and easy to work with • Experience working with startups, agencies, and businesses worldwide I believe great apps are built through collaboration, transparency, and understanding the client’s vision. If you have an idea you want to bring to life, feel free to message me. I’d be happy to discuss your project and suggest the best approach for your goals.

🏆 React Native & Mobile App Development Expert | 200+ Projects Delivered | 100% Client Satisfaction I build mobile applications that launch faster, scale reliably, and are easy to maintain long after release. From MVPs to enterprise platforms, I help startups and businesses turn ideas into production-ready iOS and Android applications. You're in the right place if: • You need an experienced React Native developer who can take ownership. • Your app has bugs, crashes, or performance issues that need fixing. • You need to launch an MVP quickly without sacrificing quality. • You need pixel-perfect implementation from Figma. • You want AI features integrated into your application. • You need a developer who can handle both mobile and backend development. Over the last 6+ years, I have helped startups, agencies, and businesses build high-performance mobile applications used by real customers. I specialize in developing scalable React Native applications, implementing complex features, integrating third-party services, and optimizing existing codebases. 📱 Mobile App Development • React Native (CLI & Expo) • iOS & Android App Development • Cross-Platform Mobile Applications • Figma to pixel-perfect mobile UI implementation • Redux Toolkit, Zustand, Context API • Performance optimization & debugging • GraphQL & REST API integration • App Store & Google Play Deployment 🤖 AI-Powered Applications • OpenAI & ChatGPT Integration • AI Assistants & Chatbots • AI Content Generation • AI-Powered Mobile Features • Custom AI Workflows 🌐 Backend & Full-Stack Development • Node js, Express js, NestJS • Firebase (Auth, Firestore, Cloud Functions, FCM) • REST APIs & GraphQL • JWT & OAuth Authentication • Real-Time Applications (WebSockets / Socket IO) • Stripe & RevenueCat Subscription Systems • Push Notifications, Maps & Geolocation I also develop scalable backend architectures that power mobile and web applications, focusing on performance, security, and clean API design. I build modular backend systems that are easy to maintain, extend, and deploy in production environments. 🗄️ Databases • PostgreSQL • MongoDB • Supabase • Redis 🚀 What I Deliver • Scalable mobile app architecture • Production-ready React Native apps • Clean, maintainable codebases • API integration & backend connectivity • Bug fixing & performance improvements • App store deployment support Industries Healthcare • Marketplace • E-commerce • Social Networking • Tourism • Job Hiring • Food Delivery • SaaS • AI Applications • Enterprise Solutions • Dating Apps • Subscription-Based Apps Whether you're building a new MVP, scaling an existing application, integrating AI features, implementing subscriptions with RevenueCat, or fixing critical issues in a live product, I can help deliver a reliable and production-ready solution. Let's discuss your project.

AI developer and full-stack engineer with 16+ years building production software for US clients. I integrate LLMs (GPT, Claude), RAG pipelines, and AI chatbots into real, shippable products — not demos. Most "AI experts" can only call an API. I build the entire product around the AI: the app, the backend, the database, and the deployment. That's why clients keep me from first commit through post-launch. What I build: → AI Integration — LLM apps (GPT, Claude, OpenAI API), RAG pipelines, AI chatbots, NLP, computer vision, AI agents → Full-Stack / MERN — SaaS platforms, dashboards, and AI-powered web apps (React, Next.js, Node.js, Express, MongoDB) → React Native — cross-platform iOS & Android apps, including AI features on mobile → Also available: Unity 3D games & AR/VR when a project needs it Recent work: • AI chatbot trained on a client's knowledge base using RAG • API-first SaaS infrastructure platform (React) • Full booking + management platform — web + mobile (MERN + React Native) • Food delivery app serving thousands of daily users (React Native + Node.js) • 15+ published games on App Store and Google Play What you get working with me: ✓ AI that actually ships — integrated, tested, production-ready, not a proof-of-concept ✓ One developer for frontend, backend, database, deployment — and the AI layer ✓ Senior-level, clean, documented code ✓ 4–6 hours daily overlap with US Eastern/Central ✓ Fast communication — Slack, Zoom, whatever you prefer ✓ NDA signed before work begins — your IP is yours ✓ Hourly or fixed-price Tech: OpenAI API · GPT · Claude · RAG · NLP · Python · TensorFlow · React · Next.js · Node.js · Express · MongoDB · TypeScript · React Native · AWS · Docker · PostgreSQL · Redis · Firebase · Unity 3D · C#

Senior Mobile Developer | Flutter & React Native Specialist 🚀 Architecting Scalable Mobile & Full-Stack Solutions Since 2014 💼 12+ Years of Engineering Excellence | Enterprise & Startup Scale ⚡ Hyper-Responsive Communication — Clear, Direct, and Action-Oriented Hi, I’m Sumanta. As a Senior Mobile Developer and Full-Stack Engineer, I specialise in building high-performance, cross-platform mobile applications and robust web ecosystems that scale seamlessly with your business growth. Over the past 12 years, I have partnered with startups and established enterprises worldwide to translate complex product visions into production-ready software. Whether you need a crisp MVP built from the ground up or a complex technical audit to optimize an existing app's performance and state management, I deliver future-ready code that performs flawlessly across devices. Core Capabilities ––––––––––––– -- Cross-Platform & Native Mobile Engineering -- Frameworks: Flutter, React Native (High-performance, single-codebase solutions) -- Native Development: iOS (Swift, Objective-C) & Android (Kotlin, Java) -- Optimization: Offline-first caching, real-time data synchronization, and advanced state management (Riverpod, BLoC, Redux). -- Advanced Features: AI integrations, secure digital wallets, and custom API/hardware interactions. Full-Stack Web Ecosystems & Architecture –––––––––––––––––––––––––––––––––– -- Modern Frontends: React, Next.js, and responsive web frameworks. -- Scalable Backends: Node.js (MERN/MEAN), Python (Django/Flask), and Laravel. -- APIs & Data: Secure RESTful & GraphQL API design, Firebase, and Firestore integration. -- Content Management: Headless CMS architectures and custom WordPress solutions. Why Clients Partner With Me ––––––––––––––––––––––––– -- Architectural Integrity: I don't just write code; I design clean, maintainable software architectures that your team can scale for years to come. -- Transparent Communication: You will always know exactly where the project stands. I prioritize proactive updates and fast, 30-minute response windows. -- Product-Minded Approach: I look at your project through a business lens, ensuring the technical execution perfectly supports your user experience and retention goals. -- End-to-End Reliability: From deep technical discovery and initial build-ready designs to post-launch support and performance tuning, I am dedicated to your long-term success. Let's build an application that drives your business forward. Click the "Invite to Job" or "Message" button above, and let’s discuss your technical goals.

I build AI integrations into React Native mobile apps and ship them to iOS and Android in 3 - 4 weeks. 28+ MVPs delivered. 900M+ AED in real transactions processed. 100% Job Success Score. Top 3% on Upwork What I build: → AI chatbot and conversational features inside mobile apps (OpenAI GPT-4) → Voice AI — speech-to-text, transcription, and AI-generated summaries (OpenAI Whisper) → RAG-powered search — users ask questions, the app answers from your own data → AI workflow automation running in the background (NestJS + n8n) → Offline-first mobile apps that work without internet and sync on reconnect → Full App Store and Play Store deployment on every single project Who hires me: Founders and startup CTOs who need one person to own the full build AI integration, mobile development, and deployment. No middlemen. No project management overhead. Direct communication. Shipped product. What sets me apart: I built a restaurant platform that processed 900M+ AED in real transactions. I shipped DWF Workforce an offline-first attendance app with GPS tracking, selfie verification, and Odoo CRM sync — live on the Play Store today. I taught React Native at NED University, one of Pakistan's top engineering institutions. I don't just integrate APIs. I understand the product, the architecture, and the business logic behind what I'm building. Currently building: AI powered voice reporting app for construction and field teams React Native + OpenAI Whisper for voice capture, GPT-4 for automated report generation, n8n for delivery workflows. Available for new projects in parallel. Stack: React Native · Expo · OpenAI API · NestJS · PostgreSQL · Supabase · Redis · TypeScript · Docker · GitHub Actions If you need AI built into a mobile app or you're starting an AI-first mobile product from scratch send me a message.

A Senior React Native/Expo Developer & Software Architect with 9+ years of experience building high-quality mobile and full-stack applications — from MVPs to production systems used by thousands of users. I don’t just build apps — I design systems that are scalable, maintainable, and ready for growth. 🚀 What I specialise in: • ⚙️ Mobile architecture (React Native / Expo) — clean, scalable, production-ready • 🧠 Full-stack development — Node.js, PostgreSQL, Supabase, Firebase • 🌐 Web & admin panels — React, Next.js, dashboards, internal tools • 🤖 AI integrations — OpenAI, Claude, AI-powered features (recommendations, generation, automation) • 🔌 API integrations — payments (Stripe, RevenueCat), maps, analytics, third-party platforms • 📡 Real-time systems — chat, live updates, subscriptions, WebSockets • 🧪 Performance, debugging & stabilization — fixing complex apps, not just building from scratch • 👥 Tech leadership — leading teams, structuring projects, mentoring developers 📱 Experience: • 40+ mobile apps shipped (iOS & Android) • Built and scaled apps in: healthtech, fintech, social, marketplaces, AI products • Strong experience with existing codebase refactoring & stabilization • Led teams and delivered full-cycle development (architecture → release → scaling) 🛠 Tech Stack: Mobile: React Native (Expo & bare), TypeScript, Reanimated, React Navigation Backend & DB: Node.js, PostgreSQL, Supabase, Firebase (Auth, Firestore, Functions), REST, GraphQL Web: React, Next.js, admin dashboards, Vercel deployments AI & Integrations: OpenAI, Claude, AI workflows, OCR, recommendation systems Other: Stripe, RevenueCat, Mapbox, WebSockets, CI/CD (GitHub Actions, Bitrise), App Store & Google Play releases 💬 How I work I focus on: • clean architecture (so you don’t need to rebuild in 3 months) • fast iteration (MVPs in weeks, not months) • real product thinking (not just coding tickets) I’m comfortable: • owning the full product • jumping into messy codebases and fixing them • making technical decisions independently 🤝 Let’s work together If you need someone who can build, fix, scale, and actually think like a product engineer, I’d love to help. Let’s build something solid 🚀

Hi, My name is Priyank, and I am an expert mobile app developer with over 10 years of experience specialising in native iOS and Android development, as well as cross-platform frameworks like React Native and Flutter. I am passionate about turning innovative ideas into high-quality, user-friendly mobile apps that work smoothly on both Android and iOS. Whether you have a complete concept or just a rough idea, I can help bring your vision to life with clean, maintainable code, intuitive UI/UX, and scalable app architecture. What I Offer: • Native iOS & Android Development • Cross-platform Development with Flutter & React Native • Custom UI/UX Design using Figma, Adobe XD, or Photoshop • API Integration and Backend Connectivity (REST APIs, Firebase, etc.) • Google Maps and Location-Based Services • In-App Purchases and Payment Gateway Integration • Push Notifications and AdMob Ads Integration • From UI Design (Figma) to Working Flutter Prototypes and MVPs • App Store and Play Store Deployment Why Work With Me? • 100% Client Satisfaction with Fast, Clear Communication • Daily Progress Updates & Agile Development Workflow • Timely Delivery - Always on Schedule • Reliable Post-Launch Support & Maintenance If you want a robust, scalable, and visually appealing app that delivers real value to users and your business, let’s connect and make it happen! Looking forward to working together. Let’s build something exceptional. Best regards, Priyank Expert iOS, Android, React Native & Flutter Developer Key Capabilities: #MobileAppDevelopment #iOSDeveloper #AndroidDeveloper #FlutterDeveloper #ReactNativeDeveloper #FullStackDeveloper #CrossPlatformApps #UIUXDesign #APIIntegration #BackendDevelopment #AppPerformanceOptimization #SecureAppDevelopment #AIIntegration #SaaSDevelopment #WebAppDevelopment #CustomAppDevelopment #AppDeployment #SwiftDeveloper #KotlinDeveloper #TopRatedFreelancer #AgileDevelopment #MachineLearning #ArtificialIntelligence #ChatGPT #OpenAI

Cut your mobile app development costs by up to 20% without compromising quality. I help startups and businesses build high-performance, cross-platform mobile applications using React Native—reducing development time, cost, and complexity while delivering apps that scale. Top Rated Upwork Developer | $40K+ Earned | 100% Job Success Score I am a senior React Native developer with extensive experience delivering production-ready mobile applications for iOS and Android. My work is backed by a consistent record of client satisfaction, long-term collaborations, and five-star reviews. I focus on clean architecture, performance, and real business outcomes—not just code. Professional Highlights Top Rated on Upwork for consistent quality and reliability $40K+ in earnings across successful client engagements 20+ satisfied clients with repeat business 100% Job Success Score reflecting on-time, on-budget delivery Consistent 5-star feedback for communication and execution Core Expertise React Native Development: 8+ years of experience building scalable, cross-platform mobile applications Frontend Engineering: JavaScript (ES6+), React.js, Next.js, HTML5, CSS3 Mobile App Development: End-to-end delivery from planning and architecture to deployment and post-launch support State Management: Redux, Redux Toolkit, Context API API Integration: REST APIs and third-party services Performance Optimization: Smooth UI, fast load times, and efficient rendering UI/UX Collaboration: Translating designs into intuitive, user-friendly interfaces Version Control: Git and GitHub for clean collaboration and maintainability What I Offer Custom Mobile Applications: Tailored React Native apps for iOS and Android Cross-Platform Cost Efficiency: One codebase, faster delivery, lower maintenance Full-Cycle Development: Planning, development, testing, deployment, and ongoing support Clear Communication: Structured updates, realistic timelines, and transparent delivery Modern Tech Stack: Experience with Swift, Kotlin, Java, Ionic, and native iOS/Android when required I am available to work across PST, EST, and GMT time zones, ensuring smooth collaboration with global teams. If you’re looking for a reliable mobile app developer who understands both technology and business goals, let’s discuss how I can help bring your product to market efficiently and at scale. Keywords: React Native, React Native Development, Cross-Platform Mobile Apps, iOS App Development, Android App Development, React.js, Next.js, Redux, Mobile App Optimization, API Integration, UI/UX Implementation, Swift iOS Development, Kotlin Android Development, Native Mobile Apps

I help startups and businesses build high-quality mobile applications for iOS and Android. With 10+ years of experience, I specialize in native and cross-platform development using Swift, Kotlin, Flutter, and React Native. I focus on clean code, smooth user experience, scalable architecture, and reliable delivery. I build mobile apps with features like push notifications, maps, chat, payments, authentication, and backend integration. I also help with App Store and Google Play deployment.