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Javed K.

Mahuva, India

$25/hr
5.0
77 jobs
๐Ÿ’ช 10+ Years of Development Experience ๐ŸŒŸ 100% Job Completion Guaranteed โœ… Top Rated Plus Freelancer ๐ŸŽ–๏ธ Expert in C#, Asp.Net, MVC, Microservices. ๐Ÿ—„ Expert in SQL, MySQL, Database Optimisation With over 10 years of development experience and a 100% job completion guarantee, I am confident in my ability to deliver top-notch projects tailored to your needs. My extensive background in .Net development, including Xamarin, .Net MAUI, WPF, and Angular, has equipped me with the skills to handle a wide range of projects. I have successfully completed over 75+ jobs on Upwork, accumulating over 12,000+ hours of work, which speaks to my reliability and dedication. I have a proven track record of developing mobile applications using Xamarin, MAUI, Flutter, Android, and iOS. My expertise extends to integrating third-party APIs, including Facebook, Twitter, LinkedIn, Google, and YouTube, as well as Google and Apple Maps for tracking and delivery-related applications. I am adept at payment gateway integration, including Stripe, PayPal, and more, and have experience with MVC and MVVM patterns. My approach involves closely analyzing client requirements to establish a comprehensive framework and employing an Agile product development lifecycle. This ensures that the final product aligns perfectly with client expectations. ๐ŸŽฏMy capabilities and skills include ๐Ÿ‘‡ โžค Mobile Application Development (.Net MAUI, Xamarin, Flutter, Android, iOS) โžค Programming languages (C#, Dart, Android, Swift, Objective - C, Javascript) โ€จโžค 3rd Party API Integration (Facebook, Twitter, Linked-In, Google, Youtube, Instagram) โžค Google/Apple Maps integration for tracking and delivery-related stuff โžค Payment Gateway Integration (Stripe, Paypal, Paytm, Braintree, WePay, RazorPay, HyperPay) โžค Use Of MVC and MVVM Patterns (MVVMLight, MVVM Cross, Prism, FreshMVVM) โžค Expert in Pixel perfect, Interactive and Complex UI โžค Third Party Hardware Integration for data reading, scanning and security purposes. โžค API integration (SOAP, REST, JSON, XML, XMLRPC) โžค Online-Offline Data synchronisation in the background โžค Push Notification (Local and cloud - APNS, Firebase, Airship, Azure, AWS) โžค Real-time Communication & Chatting integration (Firebase, PubNub, SignalR, Twilio)โ€จ โžค Social App Integration (Google, Facebook, LinkedIn, Twitter, YouTube) โ€จ โžค Barcode & QR Code Scanning & Generationโ€จ โžค MagStripe Reader (Swipe card) & NFC Reader โ€จโžค Deep Link and Universal linking โžค Apple and Google In-App purchase integration โ€จ โžค Google AdMob integration โžค Use of Dependency Injection (Unity, Autofac, Microsoft)โ€จ โžค Uses Repositories for everyday work (Github, AzureDevOps, AppCenter, JIRA, Bitbucket, GitLab)โ€จ โžค Clean and Optimized code with comments and documentation as needed โžค Publish app on AppStore, PlayStore And Enterprize app distribution softwareโ€จ โžค App Testing (Unit Testing, Integration Testing, Load Testing, Sanity Testing) โ€จ๐Ÿ“š Other Capabilities and Depth of Knowledge include ๐Ÿ‘‡ โžค Backend Development: Expertise in utilizing AWS, Azure, and Google App Engine for backend development, with proficiency in Restful API and SOAP for web services. โžค Web Application Development: Skilled in .NET Core 8 Web API and web development using HTML, Javascript, JQuery, Bootstrap, CSS and Angular(TypeScript and JavaScript). โžค Desktop Application Development: Experienced in large-scale or ERP desktop application development using WPF and MAUI. โžค Database Management: Very good grip on Database management and development stuff using MS-SQL, Oracle, DB2, MySQL, SQLite etc.โ€จ โ€จโœจ Throughout my career, I have successfully contributed to diverse projects like โ€ข Maps-based applications for delivery and tracking purposes โ€ข Health monitoring applications using embedded devices and APIs โ€ข Fitness application for the Gym โ€ข IOT-based application to interact with external devices for home automation โ€ข Fleet and Port management applications โ€ข Holy books and community-related applications ๐Ÿš€ Deployment and Maintenance ๐Ÿ› ๏ธ My expertise extends to deploying applications on TestFlight, Play Store and enterprise application distribution software for beta testing, as well as publishing mobile applications on both the Play Store and the App Store. I also offer comprehensive services for application maintenance. ๐Ÿค Collaborative and Adaptable I'm flexible and collaborative with other team members yet can work independently. Responsible and open to criticism. I can align my working hours with a different time zone. I love to follow coding patterns while building an application. My focus is to provide a high-quality product at the final stage of my work. In Short, I am just one click away from finding the right solution for you. Let's connect and discuss how I can contribute to the success of your product/project.
  • Xamarin
  • .NET Stack
  • .NET Core
  • C#
  • Hybrid App Development
  • Mobile App
  • Android
  • iOS
  • Model View ViewModel
  • Azure DevOps
  • Microsoft SQL Server
  • MVC Framework
  • SQL Programming
  • Migration
  • Azure DevOps Server
Hafiz Muhammad H.

Rome, Italy

$30/hr
5.0
57 jobs
๐Ÿ” Top Rated Plus | 9+ Years of Experience | 17,000+ Upwork Hours | 50+ Projects Delivered .NET MAUI / Xamarin / ASP.NET Core / Node.js / React.js / Express.js / Flutter Developer | Data Scientist | AI/ML Engineer | MVP Specialist โธป ๐Ÿ’ก Helping Startups Build Smarter Apps โ€” Faster Iโ€™m a full-stack .NET and JavaScript developer, Flutter app developer, and data scientist with 9+ years of experience building cross-platform, scalable, and AI-driven applications for startups and enterprises. I help founders quickly turn their ideas into market-ready products with clean architecture, modern frameworks, and seamless user experiences. โœ… MVP Development (mobile & web) โœ… .NET MAUI / Xamarin / ASP.NET Core โœ… Node.js + Express.js + React.js full-stack โœ… Flutter cross-platform apps โœ… Machine Learning & AI features โœ… AWS, Azure, Google Cloud โœ… End-to-end product delivery Whether you need a mobile-first MVP, a cross-platform application, or a data-driven web platform, I can deliver high-quality solutions from architecture to deployment โ€” including machine learning and intelligent features to keep your product ahead of the competition. โธป ๐Ÿ›  Tech Stack & Skills ๐Ÿ“ฑ Mobile Development โ€ข .NET MAUI, Xamarin.Forms, Xamarin.Android/iOS โ€ข Flutter โ€ข MVVM architecture, dependency injection, clean code best practices โ€ข App Store & Play Store deployment ๐ŸŒ Web & Backend Development โ€ข ASP.NET Core 8, C#, Entity Framework, Blazor โ€ข Node.js + Express.js (REST APIs, microservices) โ€ข React.js (responsive frontends, SPAs, PWA development) โ€ข Authentication & security (JWT/OAuth2) โ€ข Cloud infrastructure: AWS, Azure, GCP โ€ข DevOps: CI/CD pipelines, Docker, Kubernetes ๐Ÿง  Data Science & Machine Learning โ€ข Python (TensorFlow, PyTorch, Scikit-learn, Prophet, XGBoost, CatBoost) โ€ข Deep learning: CNN, LSTM, RNN for time series, NLP, computer vision โ€ข Recommendation systems, forecasting, embedded ML โ€ข Integrating AI features into web and mobile products ๐Ÿ–ฅ Desktop Development โ€ข WPF, Xamarin-based Windows apps โธป ๐Ÿ’ผ Selected Projects โ€ข ๐Ÿ“ Real-time map apps with Google Maps integrations โ€ข ๐Ÿฉบ IoT-based healthcare monitoring apps โ€ข ๐Ÿง  AI-powered apps for user behavior prediction โ€ข ๐Ÿ›  Cross-platform productivity tools โ€ข ๐ŸŽง Spotify-like music players with Spotify SDK โ€ข ๐Ÿ’ Sports tracking & analytics platforms โ€ข ๐Ÿ“ˆ Forecasting tools using time series models โ€ข ๐Ÿค HobbySwap.net โ€” built with Flutter, Node.js, React.js, and Express.js for real-time chat & community sharing โธป ๐Ÿ”„ Agile, Reliable, Business-Focused โ€ข Agile methodologies: Scrum, Kanban โ€ข Tools: Jira, Trello, GitHub, Bitbucket, TFS, SVN โ€ข Full SDLC: planning โ†’ design โ†’ development โ†’ testing โ†’ deployment โ†’ post-launch support โ€ข Strong focus on delivering business value, not just code โธป ๐Ÿค Why Founders & CTOs Hire Me โœ… End-to-end ownership of the product lifecycle โœ… Startup mindset: lean, agile, fast iterations โœ… Proven full-stack capabilities across .NET, Node.js, React.js, Express.js, Flutter โœ… Professional, responsive, proactive communication โœ… Trusted partner to deliver results, not just features โธป ๐Ÿš€ Letโ€™s Build Something Great Together If youโ€™re looking for a technical partner who brings 9+ years of cross-platform, full-stack experience โ€” with a powerful blend of .NET, JavaScript, Flutter, and AI expertise โ€” Iโ€™m ready to help you launch and scale your next product. ๐Ÿ“ฉ Send me a message today โ€” letโ€™s build smarter apps, faster!
  • C#
  • .NET Core
  • Xamarin
  • Platform Migration
  • Android App Development
  • iOS Development
  • Python
  • Data Science
  • Flutter
  • ASP.NET Core
  • .NET Framework
  • Microsoft Azure SQL Database
  • Amazon EC2
  • Azure DevOps
  • NodeJS Framework
Kirankumar B.

Ahmedabad, India

$30/hr
5.0
41 jobs
18+ years of experience in software development, Involved in all phases of SDLC โ€“ Analysis, Design, Development, Testing, Documentation, Deployment and Support. Good expertise in developing windows applications, web applications, windows services and web services. โ€ข Extensive experience in C# and SQL โ€ข Very good experience in both Windows and Web applications โ€ข Very good experience on latest web technologies MVC5, ASP.Core, WCF, WebApi, HTML5, Angular, React โ€ข Good in code analysis, troubleshooting, code optimization, performance optimization โ€ข Good at providing technical guidance and solving complex problems Technologies and framework worked on : Programming Languages: C#, VB.net Frameworks: .Net, .Net Core Web Apps: ASP.NET MVC, Silverlight, JQuery, KnockoutJS, Angular, React, HTML5, CSS3 Desktop Apps: Winforms, WPF, Windows services Services: Web Services, REST API, WCF, XML Data access: ADO.Net, EF, LINQ Database: Ms Access, MySQL, MS SQL, PostgreSQL, Elasticsearch, Redis, MongoDB Reporting Tools: Microsoft Reporting Services, Crystal Reports Others: Devexpress, Telerik, Umbraco, Nopcommerce, Power apps, Microsoft teams PowerBI, Azure platform, API integrations
  • AngularJS
  • jQuery
  • SQL
  • C#
  • ASP.NET MVC
  • Windows Communication Foundation
  • HTML5
  • React
  • Knockout.js
  • Entity Framework
  • API Development
  • Microsoft Azure
  • Windows Forms
  • .NET Core
  • nopCommerce
Saurabh N.

Surat, India

$22/hr
5.0
29 jobs
Over the past 13+ years, I have continuously provided outstanding project management, leadership, and development services to companies of all scales ranging from startups to multi-million dollar enterprises. I prefer to work in long term projects. I am highly organized, motivated, energetic, and experienced who loves to work under pressure in fast-paced, time-sensitive environments. ----------------- My Highlights ----------------- โ€ข 100% Job Success Score โ€ข 100% Client satisfaction (Evidence: Client review) โ€ข Expertise in what I offer โ€ข 10 years of experience in PHP (Core, Laravel, Zend & WordPress), .NET, CRM, ERP, POS, API integrations, Front-end Development, and Mobile App Development, including cross-platform frameworks such as React Native and Flutter. ------------------------------------------------------------------ The things that you will love when you work with me: ------------------------------------------------------------------ โ€ข Daily Report on your project. โ€ข Detail Oriented Personality. โ€ข Deliverables will be designed on ease of use for end-user. โ€ข You are in charge, I will suggest the best possible solution or all the possibilities. But work will be as per your instructions. โ€ข Flexible working hours & always available for communication. โ€ข If you are a technical person, you will find all code clean, robust, and well-commented as per the standards. Some of the strong points: - Managing team of 75+ highly talented software developers, designers, testers, and architects. - Managing some large web applications based on JavaScript, PHP, .net, and python successfully. - Managing tons of android, ios, and windows based mobile applications. - Architect and leader in some of the large applications and leading them to be multi-million dollar revenue within the span of a few years. - Fluent in English communication and can work around the clock per project requirements.
  • AWS Lambda
  • Angular
  • Node.js
  • Docker
  • CI/CD
  • PHP
  • Python
  • API Integration
  • Software Development
  • Laravel
  • iOS Development
  • React
  • Google Cloud Platform
  • AngularJS
  • Android App Development
  • SaaS
Sergei B.

Herceg Novi, Montenegro

$30/hr
5.0
27 jobs
With over 10 years of enterprise development experience, I excel in crafting robust solutions across various domains. My expertise includes: Frontend Development: - Angular 8+ and Ionic frameworks. - HTML, SCSS, TypeScript. Backend Development: - .Net Core Web API, Entity Framework Core (Code First). - Database support: MS SQL, MySQL, MariaDB, SQLite. Cross-Platform Development: - Xamarin and Ionic frameworks for Android, iOS and PWA. Windows Apps Development: - WPF, UWP, Windows Services. Development Practices: - advanced use of MVVM pattern. - Agile methodology. - Focus on scalable and maintainable architecture. Integration Capabilities: - Proficient in integrating solutions with ChatGPT LLMs. Let's collaborate to bring efficiency and innovation to your projects!
  • C#
  • Xamarin
  • Angular
  • TypeScript
  • JavaScript
  • Ionic Framework
  • Android App Development
  • iOS Development
  • Mobile App Development
  • Windows App Development
  • ASP.NET Core
  • Web Design
  • Model View ViewModel
  • HTML
  • .NET Core
Dmitry F.

Odesa, Ukraine

$42/hr
5.0
13 jobs
As a Mobile and Web Developer with over 10 years of experience, I specialize in building high-performance, scalable solutions that help businesses grow. I pride myself on staying up-to-date with the latest technologies, including Flutter, React Native, Angular, Node, and Python, ensuring that every project I work on is both cutting-edge and perfectly tailored to meet client needs. Whether itโ€™s crafting stunning user interfaces or developing complex back-end architectures, Iโ€™m passionate about delivering quality solutions that drive real results. ๐™’๐™๐™ฎ ๐™‹๐™–๐™ง๐™ฉ๐™ฃ๐™š๐™ง ๐™’๐™ž๐™ฉ๐™ ๐™๐™จ? ๐Ÿ”ง ๐™ˆ๐™–๐™จ๐™ฉ๐™š๐™ง๐™ฎ ๐™ž๐™ฃ ๐˜พ๐™ช๐™ฉ๐™ฉ๐™ž๐™ฃ๐™œ-๐™€๐™™๐™œ๐™š ๐™๐™ง๐™ค๐™ฃ๐™ฉ-๐™€๐™ฃ๐™™ ๐™๐™š๐™˜๐™๐™ฃ๐™ค๐™ก๐™ค๐™œ๐™ž๐™š๐™จ: With expertise in Angular, React, Vue, and Next.js, I build high-performance applications that are visually stunning and reliable, using the latest tools for maximum flexibility and performance. ๐ŸŒ ๐˜พ๐™ง๐™š๐™–๐™ฉ๐™ž๐™ฃ๐™œ ๐™„๐™ข๐™ข๐™š๐™ง๐™จ๐™ž๐™ซ๐™š ๐™’๐™š๐™— ๐™€๐™ญ๐™ฅ๐™š๐™ง๐™ž๐™š๐™ฃ๐™˜๐™š๐™จ: Utilizing HTML, CSS, Webpack, Redux/Saga, and NPM, I develop interactive and modern web pages that captivate users and ensure smooth performance on all platforms. ๐Ÿš€ ๐™๐™š๐™จ๐™ช๐™ก๐™ฉ๐™จ-๐˜ฟ๐™ง๐™ž๐™ซ๐™š๐™ฃ ๐™Ž๐™ค๐™ก๐™ช๐™ฉ๐™ž๐™ค๐™ฃ๐™จ: From landing pages to complex web applications, I deliver cross-browser compatible and fully accessible solutions that ensure a flawless, secure, and fast user experience. ๐ŸŽจ ๐™„๐™ฃ๐™ฉ๐™ช๐™ž๐™ฉ๐™ž๐™ซ๐™š ๐™๐™„/๐™๐™“ ๐˜ฟ๐™š๐™จ๐™ž๐™œ๐™ฃ: I design visually striking and intuitive user interfaces using tools like Figma, InVision, Zeplin, and Photoshop. My designs focus on creating a stunning user experience aligned with your business goals. ๐Ÿ› ๏ธ ๐™Š๐™ฃ๐™œ๐™ค๐™ž๐™ฃ๐™œ ๐™ˆ๐™–๐™ž๐™ฃ๐™ฉ๐™š๐™ฃ๐™–๐™ฃ๐™˜๐™š ๐™–๐™ฃ๐™™ ๐™๐™ฅ๐™œ๐™ง๐™–๐™™๐™š๐™จ: I provide continuous support to keep your website or app updated, secure, and optimized for peak performance, ensuring your digital presence stays competitive. ๐ŸŒฑ ๐™‡๐™ค๐™ฃ๐™œ-๐™๐™š๐™ง๐™ข ๐™‹๐™–๐™ง๐™ฉ๐™ฃ๐™š๐™ง๐™จ๐™๐™ž๐™ฅ๐™จ: Since 2007, I have been building long-lasting partnerships with startups and enterprises, offering dedicated solutions and teams that meet the unique demands of each business.
  • React
  • React Native
  • Android App Development
  • Mobile App Development
  • iOS Development
  • Ext JS
  • Amazon Web Services
  • Flutter
  • Web Application Development
  • Front-End Development
  • Android
  • iOS
  • Hybrid App Development
  • HIPAA
  • Firebase

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