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🏆 Top Rated Upwork Freelancer | Full-Stack Developer | .NET MAUI & Xamarin Migration Specialist I help businesses build powerful, scalable, and user-friendly mobile and web applications with a strong focus on performance, clean architecture, and long-term maintainability. With hands-on experience in cross-platform development, backend systems, and quality assurance, I deliver complete solutions that are stable, modern, and ready for real-world users. 🚀 My Core Expertise 📱 Cross-Platform Mobile Development * .NET MAUI * Xamarin.Forms * Flutter I create smooth, responsive, and high-performance mobile applications for Android and iOS with native-like user experiences. 🔄 Xamarin to .NET MAUI Migration Expert Successfully migrated 27+ Xamarin applications to .NET MAUI, helping clients modernize their apps, improve performance, and ensure future scalability with Microsoft’s latest technologies. 🖥️ Backend Development * ASP.NET Core * REST API Development * Python Django * Authentication & Secure APIs * Database Integration I build secure and scalable backend systems that support enterprise-level mobile and web applications. 🎨 Frontend & Web Development * HTML5 * CSS3 * JavaScript * Bootstrap * Vue.js From responsive business websites to dynamic web platforms, I create clean and modern interfaces optimized for speed and usability. 🧪 QA Testing & App Stability Quality is always a priority. I perform: * Manual Testing * Functional Testing * UI/UX Testing * Bug Reporting & Tracking * Release Validation I ensure applications are polished, stable, and production-ready before deployment. ✅ Why Clients Choose Me * Top Rated Upwork Freelancer * 100% Job Success Score * Strong Communication & Fast Response * Clean, Maintainable Code * On-Time Delivery * Long-Term Client Support ⭐ I focus on building reliable applications that not only work well today but are also easy to scale and maintain in the future. Whether you need: * A new mobile app * Xamarin to MAUI migration * Full-stack web development * API integration * App maintenance & bug fixing * QA testing support I’m here to help turn your idea into a successful product. Let’s build something great together!

🏆 Top Rated .NET MAUI & Xamarin / Flutter Mobile Application Developer 📈 $50K+ Earnings | 🎯 100% Job Success | 🕒 2500+ Hours | ✅ 85+ Projects Completed Delivering high-quality Android & iOS apps. .NET MAUI Developer | Xamarin.Forms Developer | Flutter Developer | Cross Platform App Developer | Mobile App Development Expert | Android & iOS App Developer | .NET MAUI Migration Expert Certified Mobile App Developer with 7+ years of experience and 85+ successful projects — developing cross-platform mobile applications using .NET MAUI, Xamarin.Forms, and Flutter that deliver performance, scalability, and seamless user experiences. My name is 𝙈𝙤𝙝𝙖𝙢𝙢𝙖𝙙 𝙎𝙪𝙝𝙚𝙡, a Full Stack Mobile App Developer specializing in .NET MAUI, Xamarin.Forms, and Flutter. I build high-quality, modern, and user-friendly mobile applications that are responsive, fast, and business-driven — designed to run flawlessly on Android, iOS, Windows, and macOS. Whether you need a new mobile app, a migration from Xamarin.Forms to .NET MAUI, or a Flutter-based solution, I ensure your app is future-ready and performance-optimized. Completed 30+ Xamarin.Forms → .NET MAUI migration projects, including large-scale, feature-rich, and mission-critical applications. 𝙈𝙤𝙗𝙞𝙡𝙚 𝘼𝙥𝙥 𝘿𝙚𝙫𝙚𝙡𝙤𝙥𝙢𝙚𝙣𝙩 𝙎𝙚𝙧𝙫𝙞𝙘𝙚𝙨 𝙄 𝙊𝙛𝙛𝙚𝙧 .NET MAUI Cross-Platform App Development Xamarin.Forms Mobile App Development Flutter App Development (Android, iOS, macOS, Windows) Xamarin.Forms → .NET MAUI Migration & Upgrade Custom UI/UX (Figma → XAML / Flutter Widgets) Firebase, REST API, and Azure Integration App Store & Play Store Submission Mobile App Redesign & Performance Optimization App Maintenance, Debugging & Version Upgrades 𝙈𝙮 𝙎𝙠𝙞𝙡𝙡𝙨 & 𝙀𝙭𝙥𝙚𝙧𝙩𝙞𝙨𝙚 ▪ .NET MAUI App Developer ▪ Xamarin.Forms App Developer ▪ Flutter App Developer ▪ Xamarin.Forms to .NET MAUI Migration Expert ▪ Cross Platform App Development (Android, iOS, Windows, macOS) ▪ Firebase & REST API Integration ▪ App Store & Play Store Publishing ▪ MVVM Architecture & Shell Navigation ▪ Offline Support & Push Notifications ▪ In-App Purchases & Subscription Management ▪ C#, XAML, Dart, Kotlin, Swift ▪ Git, Azure DevOps, GitHub, Bitbucket ▪ Clean Code & Performance Optimization ▪ Blazor Hybrid with .NET MAUI ✅ 𝙒𝙝𝙮 𝘾𝙝𝙤𝙤𝙨𝙚 𝙈𝙚 𝘼𝙨 𝙔𝙤𝙪𝙧 𝙈𝙤𝙗𝙞𝙡𝙚 𝘼𝙥𝙥 𝘿𝙚𝙫𝙚𝙡𝙤𝙥𝙚𝙧 ✔️ 7+ years of hands-on experience in Mobile App Development ✔️ Expert in .NET MAUI, Xamarin.Forms, and Flutter ✔️ 85+ successful projects completed across global industries ✔️ Specialized in Cross Platform App Development ✔️ Proven Xamarin.Forms → .NET MAUI Migration Expert ✔️ Clean, scalable, and maintainable codebase ✔️ Expertise in App Store / Play Store Deployment ✔️ Reliable long-term support and communication 🚀 𝙇𝙚𝙩’𝙨 𝘽𝙪𝙞𝙡𝙙 𝙔𝙤𝙪𝙧 𝘼𝙥𝙥 𝙏𝙤𝙜𝙚𝙩𝙝𝙚𝙧 When you hire me as your Mobile App Developer, you get: ✔️ High-performance, responsive mobile applications ✔️ Cross-platform apps using .NET MAUI, Xamarin.Forms & Flutter ✔️ SEO-optimized listings and store compliance ✔️ Ongoing updates, maintenance, and optimization ✔️ Dedicated support and post-launch assistance I’m passionate about crafting user-focused mobile applications that combine modern design, optimized performance, and solid architecture. Whether you need a .NET MAUI app, a Flutter app, or a migration from Xamarin.Forms, I’ll deliver an app that drives results and growth. 📩 Let’s discuss your mobile app project today and bring your vision to life! 🔍 𝙆𝙚𝙮𝙬𝙤𝙧𝙙𝙨 .NET MAUI Developer, Xamarin.Forms Developer, Flutter Developer, Mobile App Developer, Cross Platform App Developer, .NET MAUI App Developer, Xamarin.Forms App Developer, Flutter App Developer, Xamarin.Forms to .NET MAUI Migration Expert, MAUI Developer, Xamarin Developer, .NET MAUI Expert, Flutter App Expert, Mobile App Development, Xamarin.Forms to .NET MAUI Upgrade, Cross Platform Mobile App Development, .NET MAUI Xamarin Flutter Developer, Android App Developer, iOS App Developer, .NET MAUI 9 Developer, Xamarin.Forms Migration, .NET MAUI Mobile App Developer, Flutter Mobile App Developer, Xamarin.Forms Mobile App Developer, Xamarin.Forms to MAUI Migration Specialist, Cross Platform Mobile Developer, .NET MAUI Mobile Developer, Flutter Cross Platform App Developer, Xamarin.Forms Mobile Developer, .NET MAUI App Engineer, Xamarin.Forms Specialist, Flutter App Engineer, MAUI Mobile Developer, .NET MAUI Xamarin.Forms Flutter App Developer, Xamarin.Forms to MAUI Migration Expert, Flutter Cross Platform App Expert, MAUI Xamarin.Forms Developer, .NET MAUI Cross Platform App Developer, Flutter Application Developer, Xamarin.Forms App Specialist, .NET MAUI App Builder, Flutter App Builder, Xamarin.Forms App Engineer, Cross Platform MAUI Developer, Xamarin.Forms Flutter MAUI Developer.

I am an experienced Full-Stack Software Developer & Solution Architect with strong analytical and problem-solving skills, delivering scalable, secure, and high-performance applications across Web, Desktop, Mobile, Cloud, Blockchain, and AI-powered systems. I specialize in building real-time, data-intensive, and enterprise-grade solutions that solve complex business challenges. ✅ Core Technical Expertise ______________________________________________________________________ ⚙️ Backend / Server-Side Development C#, .NET Framework, .NET Core, ASP.NET MVC, Web API Node.js, Express.js Real-time systems using SignalR & WebSockets Microservices architecture, RESTful APIs, modular scalable systems 🗄️ Databases & Data Engineering SQL Server, MySQL, PostgreSQL MongoDB, NoSQL, distributed data systems Database optimization, performance tuning, stored procedures 🎨 Frontend Development JavaScript, TypeScript AngularJS, modern Angular, React (if applicable) jQuery, Bootstrap, Knockout.js HTML5, CSS3, SASS/SCSS, responsive UI, UX-focused development 📱 Mobile & Cross-Platform Development Android (Native) Xamarin, PhoneGap/Ionic ElectronJS for cross-platform desktop apps 🛠 Tools, Libraries & Integrations Syncfusion, PDFSharp, AngleSharp, HTML Agility Pack Payment gateways, 3rd-party integrations, automation tools Reporting, dashboards, multi-tenant systems ☁️ Cloud & DevOps (If you want, I can expand this section) Azure, AWS basics CI/CD pipelines (GitHub Actions, Bitbucket Pipelines, Azure DevOps) Docker, containerized deployments 🧠 AI, Automation & Blockchain AI/ML integrations, automation scripts, data processing pipelines Bot development, chatbots, workflow automation Ethereum blockchain development Smart contract development (Solidity, Truffle, Web3) 🔄 Project Management & Development Methodologies Agile, Scrum, Kanban TDD (Test-Driven Development), Clean Code, SOLID Principles Git, GitHub, GitLab, Bitbucket, SVN JIRA, Azure DevOps, Trello, Freedcamp, MS Team Foundation I follow a structured Software Development Life Cycle (SDLC) to ensure quality, reliability, and maintainability at every stage—from requirements and architecture to development, testing, deployment, and long-term support. 🌟 Why Clients Enjoy Working With Me ______________________________________________________________ Strong logical, analytical, and architectural thinking Transparent communication and proactive collaboration Flexible with budgets and project scopes Committed to meeting deadlines and exceeding expectations Focused on long-term client relationships and continuous improvement I’m a highly self-motivated professional who takes ownership of every project. My goal is to deliver solutions that are scalable, secure, user-friendly, and aligned with your business goals.

With over a decade of hands-on experience and a Top Rated Plus track record of delivering large-scale enterprise ecosystems, I provide the technical leadership necessary to turn complex business logic into high-performance digital products. My approach combines veteran architectural knowledge with AI-driven development to maximize delivery speed without compromising security or code quality. 📱 Dual-Specialist Mobile Architecture I bridge the gap between native performance and cross-platform efficiency, specializing in the two most powerful frameworks for enterprise apps: .NET MAUI & Xamarin Expert: Industry leader in migrating legacy Xamarin suites to .NET 8/9 MAUI, ensuring native rendering and optimized performance. React Native Specialist: Building highly responsive, scalable mobile interfaces with seamless JavaScript/TypeScript integration and native module hooks. Native Foundations: Deep proficiency in Swift, Objective-C, and Kotlin for specialized low-level hardware integrations. Advanced Features: Complex UI/UX animations, MagStripe/NFC, biometric security, and real-time communication (SignalR/Firebase). 🌐 Web & Cloud Solutions I build robust, high-traffic backends and modern web frontends: Frameworks: ASP.NET Core MVC, Web API, and Blazor Hybrid for sharing code between Web and Mobile. Frontend: Responsive, enterprise-grade architectures using Angular, Bootstrap, and HTML5. E-commerce & CMS: Specialized in custom-built retail platforms and scalable inventory management systems. 🗄️ Database & DevOps Databases: Advanced optimization and performance tuning for MS-SQL, SQLite, Oracle, DB2, and MongoDB. AI-Enhanced Workflow: I leverage GitHub Copilot and Cursor for rapid prototyping and automated refactoring, delivering production-ready code in record time. Professional Versioning: Expert management of Git (GitHub/Azure DevOps/Bitbucket) and TFS workflows. 🏆 Why My Partnership Drives Results: 1. Enterprise-Level Project Recovery I specialize in taking over complex, stalled, or legacy codebases and transforming them into stable, live products. My goal is to reduce your technical debt while accelerating your roadmap. 2. Strategic Solution Consulting I don’t just execute tasks; I act as a technical partner. I provide frequent, transparent communication and proactive architectural advice to ensure your product scales with your business. 3. Quality-First Architecture By strictly following MVVM, SOLID, and Clean Architecture principles, I ensure your application is maintainable, testable, and ready for future upgrades. 4. Global Team Momentum I lead a specialized team of UI/UX and Backend experts, allowing us to handle the full project lifecycle while maintaining 24/7 momentum across international time zones.

Hi 👋 I'm Jeetendra Sharma, a complete-package technologist with 20+ years of hands-on experience designing, building, and scaling software solutions, web applications, and desktop systems across nearly every business domain you can name. I don't just write code. I lead, automate, architect, deploy, and manage teams, and now, with AI woven into my workflow, I deliver in a fraction of the time without cutting a single corner. Hire me once, and you replace an entire tech department. ⚡ 🏆 20+ Years of Production-Grade Delivery ⭐ Cross-Domain Software Expert ✅ AI-Powered Development Specialist ✅ End-to-End Ownership — Idea → Launch → Long-Term Support 𝐖𝐡𝐚𝐭 𝐈 𝐁𝐮𝐢𝐥𝐝 𝐅𝐨𝐫 𝐘𝐨𝐮𝐫 𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬: ➡️ 𝐀𝐈-𝐏𝐨𝐰𝐞𝐫𝐞𝐝 𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 Smart automations, AI assistants, document intelligence, and Claude/ChatGPT-driven features built directly into your products and operations to cut manual work by 60-80%. ➡️ 𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐒𝐞𝐭𝐮𝐩 𝐅𝐫𝐨𝐦 𝐙𝐞𝐫𝐨 Choosing your stack, wiring your tools, automating your processes, training your team I get your entire tech foundation right the first time so you don't pay twice. ➡️ 𝐂𝐫𝐨𝐬𝐬-𝐃𝐨𝐦𝐚𝐢𝐧 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐲 Two decades of shipping for e-commerce manufacturing, healthcare, education, logistics, retail, real estate, and finance. Chances are I've already solved a problem just like yours. ➡️ 𝐂𝐮𝐬𝐭𝐨𝐦 𝐖𝐞𝐛 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 Customer portals, dashboards, internal tools, marketplaces, a booking platforms fully tailored to how your business actually operates, not a generic template. ➡️ 𝐃𝐞𝐬𝐤𝐭𝐨𝐩 𝐒𝐨𝐟𝐭𝐰𝐚𝐫𝐞 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 Windows-based business tools, POS systems, inventory software, accounting modules, and offline-first applications engineered for reliability in real-world environments. ➡️ 𝐋𝐞𝐠𝐚𝐜𝐲 𝐒𝐲𝐬𝐭𝐞𝐦 𝐑𝐞𝐬𝐜𝐮𝐞 & 𝐌𝐨𝐝𝐞𝐫𝐧𝐢𝐳𝐚𝐭𝐢𝐨𝐧 Outdated software dragging you down? I rebuild slow, fragile codebases into clean, modern architectures with zero disruption to what's already running. ➡️ 𝐓𝐞𝐚𝐦 𝐋𝐞𝐚𝐝𝐞𝐫𝐬𝐡𝐢𝐩 & 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐲 𝐎𝐰𝐧𝐞𝐫𝐬𝐡𝐢𝐩 Need scale? I bring a vetted team, the playbook, and the discipline to ship you get one accountable point of contact instead of five. 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐊𝐞𝐞𝐩 𝐂𝐡𝐨𝐨𝐬𝐢𝐧𝐠 𝐌𝐞: ✅ 𝐓𝐰𝐨 𝐃𝐞𝐜𝐚𝐝𝐞𝐬, 𝐙𝐞𝐫𝐨 𝐄𝐱𝐜𝐮𝐬𝐞𝐬: proven delivery for real businesses, not theory ✅ 𝐂𝐥𝐞𝐚𝐫, 𝐇𝐨𝐧𝐞𝐬𝐭 𝐂𝐨𝐦𝐦𝐮𝐧𝐢𝐜𝐚𝐭𝐢𝐨𝐧: straight talk, real timelines, no surprises ✅ 𝐀𝐈-𝐀𝐜𝐜𝐞𝐥𝐞𝐫𝐚𝐭𝐞𝐝 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐲: full systems shipped in a week, not a quarter ✅ 𝐁𝐮𝐢𝐥𝐭 𝐭𝐨 𝐋𝐚𝐬𝐭: projects from a decade ago still powering businesses today ✅ 𝐏𝐨𝐬𝐭-𝐋𝐚𝐮𝐧𝐜𝐡 𝐏𝐚𝐫𝐭𝐧𝐞𝐫𝐬𝐡𝐢𝐩: I stay involved long after delivery ✅ 𝐎𝐧𝐞 𝐇𝐢𝐫𝐞, 𝐄𝐯𝐞𝐫𝐲 𝐒𝐤𝐢𝐥𝐥: coder, architect, manager, AI strategist, sysadmin in one 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤: ⚡ 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 → React, Next.js, Angular, Bootstrap, TypeScript, Tailwind CSS ⚡ 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 → .NET & C# ⚡ 𝐃𝐞𝐬𝐤𝐭𝐨𝐩 → WPF, .NET Desktop Apps ⚡ 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 → MySQL, PostgreSQL, SQL Server, Firebase ⚡ 𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬 → AWS, Azure, Docker, CI/CD pipelines ⚡ 𝐂𝐌𝐒 & 𝐞𝐂𝐨𝐦𝐦𝐞𝐫𝐜𝐞 → PODStoreFront and Shopify 𝐀𝐈 𝐓𝐨𝐨𝐥𝐬 𝐈'𝐯𝐞 𝐌𝐚𝐬𝐭𝐞𝐫𝐞𝐝: ➤ Claude (Anthropic) — my daily driver for code, architecture, content ➤ ChatGPT & OpenAI APIs — automation, integrations, custom GPTs ➤ ClickUp AI — project orchestration and team workflow automation ➤ Cursor, Claude Code, GitHub Copilot — pair-coding at machine speed ➤ MCP servers & AI agent integrations — embedding intelligence into your stack 𝐑𝐞𝐚𝐥-𝐖𝐨𝐫𝐥𝐝 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 𝐈'𝐯𝐞 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐞𝐝: ✦ PODStoreFront: No-code ecommerce and POD storefront builder, built-in product customizer and other integrations. ✦ MDM: Automated warehouse system with PO generation, carrier integration, and serial tracking for fast, accurate logistics. ✦ Duplium: Smart Printer Suite unifying production control, inventory, and one-click invoicing for high-volume print operations. ✦ DR.Talk: HIPAA-compliant mobile platform for patient texting, dental chatbots, and curbside check-in. ✦ MarshallZehr: Intelligent fintech software automating lending workflows and analytics for real estate lenders. ✦ Speed Identity: Enterprise biometric system with fingerprint, signature, and multi-modal kiosk capture. ✦ LP Soul: Full-service POD eCommerce platform with custom product customizer and multi-currency admin for global apparel & accessories. 𝐖𝐡𝐚𝐭 𝐘𝐨𝐮'𝐥𝐥 𝐆𝐞𝐭 𝐖𝐨𝐫𝐤𝐢𝐧𝐠 𝐖𝐢𝐭𝐡 𝐌𝐞: ✔️ Software shaped around your business goals not a cookie-cutter build ✔️ Interfaces your users actually enjoy and your team can run without training ✔️ Backend systems that hold up under real load, not just demo conditions ✔️ Continuous post-launch support, updates, and optimization ✔️ One partner accountable for the whole journey — strategy through scale 📩 Send me a message or invite me to your project. Let's talk. 🚀

Accomplished Software Developer with 13+ years of experience in Windows full-stack development, now also specializing in AI integration and LLM-powered desktop applications. I build intelligent, high-performance Windows apps that combine solid engineering fundamentals with modern AI capabilities — from embedding LLM APIs into WPF interfaces to building RAG pipelines and AI-assisted workflows. Well versed in WPF, WinUI, MAUI, Entity Framework, NoSQL/SQL databases, Cloud services (Azure, AWS), and third-party controls like Syncfusion. 🖥️ Skills ✅ Windows Desktop — WPF, MVVM, Prism (13 yrs) · WinUI, MAUI (4 yrs) 🤖 AI & LLM Integration — OpenAI API, Anthropic/Claude API, Semantic Kernel, LangChain.NET · Prompt Engineering · RAG Pipelines · Embedding-based Search · AI-assisted UI workflows 💻 Languages — C#, XAML (13 yrs) · C/C++ (5 yrs) 🌐 Web — Angular, ASP.NET Core Blazor, JavaScript (3 yrs) · .NET Core API, SignalR 🗄️ Databases — SQL Server, MongoDB, LiteDB, CosmosDB ☁️ Cloud — Azure (2 yrs), AWS 🌟 Why Hire Me? 🚀 13+ years shipping production-grade Windows applications across 80+ projects 🧠 One of the few desktop developers who can natively integrate AI/LLM features — no hacky workarounds, clean architecture 🎨 Strong Design & UX sensibility that speeds up the development cycle 🎓 Certified by HP (Enterprise Applications) and NIIT (Advanced Microsoft Stack) 🤝 Flexible schedule, responsive communication, and delivery you can count on