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  • $24 hourly
    I have 4 years work experience in cross-platform mobile app development (Flutter and Xamarin). Some of my skills: 1. C# and XAML, Dart 2. REST API 3. BLE/Bluetooth, Firebase, handling notifications (VoIP/push), CallKit, native services 4. CI/CD processes (Azure DevOps, AppCenter, TestFlight) 5. TestFlight/App Store and Google Play Console/Google Play. 6. UI and unit tests
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    XAML
    C#
    Dart
    Flutter
  • $60 hourly
    Automate everything and make life easier. That's how I do it. 10+ years of experience with the following use cases: - Anti-Malware product development. - Web scraping / getting data or files from several websites. - Automating eCommerce business tasks (using Amazon MWS API). - Dashboard for custom hardware using Serial COM Port. - CRM for a dental practice. - Custom apps that involve video recording, conversion, and transcoding. - Gym Training system. Ready to work with the following technology: - Web Application using ASP.NET with Angular / React / Vue / Blazor front-end. - Database ORM using EntityFramework / Dapper. - Cross-platform (Windows, macOS, and Linux) desktop app using Avalonia UI / MAUI. - Native Windows app using Windows Forms (WinForms) and Windows Presentation Foundation (WPF). - Native macOS app using Xamarin.Mac. - Database engines: Microsoft SQL Server, Azure SQL Edge, MySQL / MariaDB / Percona, SQLite, PostgreSQL I can do reverse engineering or decompile .NET applications and libraries ILSpy / AvaloniaILSpy. Then use the decompiled code in another project. I can also maintain some legacy .NET apps. I furthermore have the following skills: - Strong in algorithm design and analysis. - Great ability to solve programming and system trouble. - Great at optimizing software performance. - Flexible work style. - Adaptive team player. My Hardware for works are: - AMD Ryzen PC DeskMini-X300 (Windows) - MacBook Air M1 (macOS) - iPhone 15 Pro (iOS) - Samsung Galaxy S10 (Android)
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    ASP.NET
    Android App Development
    Windows App Development
    iOS Development
    Mac OS App Development
    Windows Presentation Foundation
    Python
    Desktop Application
    Microsoft SQL Server
    C#
    .NET Framework
    Windows Forms
  • $25 hourly
    I am an experienced Xamarin, .Net, iOS, Android, Windows App developer. I have excellent knowledge of Xamarin.Forms, Xamarin.Android, Xamarin.iOS, native iOS, native Android, and ASP.Net MVC. I can develop Mobile App (iOS, Apple, Windows), Windows Form App (WPF & Windows Forms), Web Applications. I experienced to develop a Xamarin, iOS, and Android app with the following features 1. Interactive and complex UI. 2. Social App Integration (Google, Facebook, LinkedIn, Twitter) 3. Local SQLite DB integration. 4. Chatting Implementation & Integration. 5. Accessing Gallery, Camera, files, etc. 6. API integration (SOAP, REST, JSON, XML, XMLRPC). 7. Barcode Scanning && Generating. 8. QR Code Scanning && Generating. 9. MagStripe Reader (Swipe card) & NFC Reader. 10. Push notification. 11. Payment gateway integration. 12. MVVM pattern. And many other features. I am also experienced in other programming languages & frameworks, Databases, such as. Programming Languages and framework. 1. ASP.Net MVC. 2. WPF (Windows Presentation Foundation). 3. Windows Forms Application. 4. HTML 5. Javascript. 6. Node.JS. 7. Bootstrap. 8. CSS. 9. CodeIgniter. 10. Java (Servlet, core). Databases: Good working experience in the following databases. 1. MS-SQL. 2. MySQL. 3. Oracle. 4. SQLite. 5. DB2. 6. Couchbase light. I am working with C# for more than 4+ years and have an excellent grip on OOPS Concept, Reflection, Binding, etc. What is the difference between other developers and me, and why should you hire me? - I always develop apps using either MVC or MVVM patterns. - Made App live on appropriate store and server if you required. - Develop mobile app by following Apple, Google, and Windows development guideline. - Always reply quickly and give my 100% dedication to your project to make it live.
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    SQL Programming
    Map Integration
    Windows App Development
    Model View ViewModel
    Android App Development
    MVC Framework
    iOS Development
    Payment Gateway Integration
    Microsoft SQL Server
    JavaScript
    C#
    Windows Presentation Foundation
    ASP.NET MVC
    Azure DevOps
  • $30 hourly
    Sharp and Perceptive Programmer with significant C# Cross platform development (Xamarin, MAUI, .NET). 1. Quality work is my key attribute. 2. My skills are predicted with my work. 3. Flexible with the working timings as per client requirements.
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    Mobile UI Design
    Agile Software Development
    Mobile App Development
    iOS Development
    Android
  • $15 hourly
    I am experienced full stack developer of mobile and web development, I have 5+ years of experience of developing apps and site using various technologies like Dot(.) Net, PHP etc. I am a developer who has experience of all the aspects of the development like Analysis, Design, Testing and Deployment. I am experienced in the following technologies. - Asp.Net with MVC using C#. - PHP (Laravel, Code Igniter (CI), WordPress). - Xamarin (Forms, Android, iOS). - Flutter - Kotlin - ReactNative. I had developed Mobile apps with the following features. 1. MVVM pattern with Xamarin.Forms 2. Interactive and complex UI with animations 3. Local and push notifications 4. Payment Gateway integration 3. Barcode & QR code integration 5. Magstripe and NFC reader integration 6. Chat Implementation and integration (from scratch or third-party integration). 8. Social apps integration (Google, Facebook, LinkedIn, Twitter) 9. Local SQLite database integration. 10. API integration (SOAP, REST, JSON, XML, XML-RPC). 11. Crash and Analytics reporting. I had developed Web-Sites with the following features. 1. MVC pattern 2. Responsive design using Bootstrap, Foundation and HTML5 Boilerplate 3. Chat plugins integration or development from scratch 4. Payment gateway integration 5. E-commerce sites 6. CMS systems Generally, I use the following database technologies with mobile app and websites developments. 1. MS-SQL 2. SQLite 3. Oracle 4. DB2 5. Mongo DB Repository tools that I usage for versioning and code storage 1. Git 2. TFS What differentiates me from other developers and Why you should hire me? 1. Start development from scratch or take over the existing and make it live. 2. Frequent communication with clients. 3. Ready to work more hrs if required. 4. Flexible with team members.
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    Microsoft Azure
    XAML
    MVC Framework
    Azure DevOps
    Windows Presentation Foundation
    NFC
    Object-Oriented Programming
    SQL Programming
    Model View ViewModel
    Mobile UI Design
    ASP.NET Web API
    iOS Development
    Android App Development
    C#
  • $60 hourly
    .NET/C# working with WPF, UWP, Xamarin Forms, Win UI 3, Avalonia, XPF and Blazor applications on desktop and mobile (iOS and Android). 13 years of experience, over 50 successful UpWork projects completed. 7+ Years of development working on complex mobile and desktop apps from start to publication on stores (AppStore, Google Play, Windows Store) If you have a Xamarin Forms application that needs to be updated to .NET MAUI or other multiplatform framework, let's talk, I can help you with the process as well as selecting the best option based on your needs. Fluent spoken and written English Located in the east coast of the Americas so I'm available for your questions and any communication during business hours if you are anywhere in the Americas or Western Europe. Several years of experience working with financial, medical, scientific or agricultural fields on both large as well as small companies and from all stages from initial design/requirements all the way to publication/testing/maintenance including legacy applications.
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    .NET Core
    Model View ViewModel
    Mobile App Development
    Entity Framework
    Windows App Development
    iOS Development
    XAML
    Android
    Windows Presentation Foundation
    Desktop Application
    SQLite
    C#
    SQL
  • $95 hourly
    Over 15 years experience in e-commerce, with projects ranging from classic ASP, ASP.NET, and MVC. Certified Sitefinity Developer & Partner specializing in custom module development and back-end customization. Extensive experience with client side development with jQuery & Ajax, as well as backend development expertise with RESTful services and WebAPI. Skilled in deployments to both Amazon AWS and Microsoft Azure environments. Xamarin developer with experience in building both IOS and Android applications. Incorporated in NJ, USA
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    Website
    .NET Core
    Microsoft SQL Server Programming
    Sitefinity
    Microsoft Azure
    GitHub
    Android App Development
    iOS Development
    HTML
    ASP.NET MVC
    jQuery
    C#
  • $50 hourly
    I have over 15+ years of experience in software development, design and maintenance. Mainly I'm interested with : 📌 Backend Development (XML-Services, WCF, RESTful APIs) 📌 Client/Server Applications (TCP, UDP, HTTP, SignalR, WebSockets) 📌 Realtime Data Monitoring 📌 APIs Integration 📌 Serial Port Communications with Smart Devices (PLCs, RTUs, Inverters) 📌 Automation Scripts (Web-Scraping, Data-Processing) 📌 MS-Office Add-ins (VSTO, VBA, JS) 📌 Upgrading old VB6 projects to VB.NET/C# projects (Desktop or Web)
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    TCP
    Automation
    RESTful API
    Microsoft SQL Server
    ASP.NET
    ADO.NET
    ASP
    Python
    PHP
    Visual Basic
    Microsoft VBScript
    C#
  • $20 hourly
    3 years experience in mobile development (Visual Studio, Android Studio, Xcode, Xamarin Studio, Eclipse), understanding grasp clearly the database, HTTP Restful, in-app purchases(IAP), payment, mutil-languages, Google maps, GPS, Parse, image processing... Also have experienced in Xamarin Android-IOS-Win (MVVM-Cross), Xamarin Forms and NDK (C ++ for Android, IOS) ... Languages: C#, C/C++, Java, Swift, Objective C,... Database platforms: SQLite, Realm, MS SQL/Entity Framework, MySQL, MongoDB... Systems: Windows, OS X, Linux Cloud Platforms: Parse, Cloudbase, Firebase, AWS, MS Azure, ... Others: Crashlytics, Analytics, Stripe, Paypal, Checkout, Facebook, Twitter, Google Map API,...
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    Mobile Development Framework
    Windows Mobile
    Windows App Development
    Android SDK
    iOS Development
    Android App Development
    Mobile App Development
    Android
  • $22 hourly
    Upwork Top Rated, software developer with excellent client feedback. ► SUMMARIZED EXPERIENCE: 5+ years experience working with technologies such as ASP.Net MVC, Web APIs, SignalR, cross-platform mobile apps with Xamarin and web services, WPF, UWP, and Windows Forms with strong knowledge and deep understanding of software design patterns (IoC, DI, NInject, Unity) and best practices. ► HOW CAN I HELP YOUR DEV NEEDS? If you are looking for a highly efficient, responsive and experienced FULL STACK software developer for a long term relationship, to take care of all your development needs, I am your guy. ► PROFICIENT software dev/design areas: ★ ASP.NET Core, JWT Token Authentication, IdentityServer4 ★ .Net with C#, ASP.net MVC 3,4,5 (Unity, NInject), T-SQL, MVC Web/Odata APIs, Owin Oauth, JWT, WPF, UWP, DI. TDD ★ Framework7, Angular, ChartJS, DevExtreme, Prototype.js, JQuery, Javascript, HTML5, CSS3, Telerik Platform, Telerik App Builder ★ Dapper, Entity Framework (Code-First, Database First) ★ Business Objects design, UI customization, Reporting, Scheduler & Dashboards. ★ Telerik, DevExpress, Infragistics, Fluent (Reporting,Win,Web, WPF) 3rd party dev tools ★ MSSQL, MySQL, PostgreSQL, SQLLite, SQL Compact, MS Access. ★ Xamarin, Xamarin.Forms. Android, iOS, UWP, DevExtreme, ChartJS I have also performed functional testing using platforms such as qTest (QA Symphony) and I am well versed in test case design, requirements management and automated testing. Additionally I am an expert on : ★ Inversions of Control/Dependency Injection, TDD, MVVM, multi-layered architecture. ★ Source Control (Git) (Github, Bitbucket), Microsoft TFS, Tortoise SVN ★ XPath, JSON, XML, Office/Outlook APIs, Sharepoint API, Power BI API, PInvoke I take pride in strong debugging, re-factoring, problem solving skills with passion to solve complex business problems and delivering best & optimized solution for clients. Feel free to contact to know more about my work and how I can help you.
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    Database Design
    API
    iOS Development
    Docker Compose
    Docker
    iOS
    Mobile App Development
    XAML
    Android
    ASP.NET MVC
    Swift
    ASP.NET
    C#
    Microsoft Azure SQL Database
  • $35 hourly
    ✅ Experienced Consultant with a demonstrated history of working in the computer software industry. Skilled in C# .NET,WPF, XAML, Winform, UWP, React-Native, Xamarin,ASP.NET MVC , WEB API, WCF, JavaScript/ES6/JSX, TypeScript, HTML,CSS,React Js, Angular Js, Redux,SQL Server, My SQL, SQLite,AWS. -12+ years of application development experience - Developed many enterprise level applications using following technologies : - .NET Framework / .NET 6 - C#, WPF, UWP, WINUI3 ,ASP.Net MVC, WebAPI - JavaScript frameworks (ReactJS, Angular) - HTML5/CSS3, SASS - TypeScript - Azure - GitHub, GitHub Actions, Azure DevOps, Jenkins - Visual Studio Code, Visual Studio, ► WHAT I'M OFFERING: If your business looking for a highly efficient, responsive, technically strong, and well-experienced FULL STACK software developer to maintain a long-term working relationship, to the attendant to all your development needs, I am that person. I take great pride in my strong debugging, re-factoring, problem-solving skills with a passion to solve complex business problems, and delivering the best & optimized solution for my client. ► WORK EXPERIENCE Here in UpWork, I am working for last 3 years. HOWEVER, I'm a well-accomplished senior software engineer with over a decade of enterprise application development experience, with proven results in leading high-profile projects ► PROFICIENT software architecture/design/development concepts and technologies: » .NET Framework ║ .NET Core ║ C# ║ WPF || WWF - Windows Workflow Foundation » ASP.NET Web API ║ ASP.NET MVC ║ OWIN » ADO.NET ║ Entity Framework » DevExpress ║ Syncfusion ║ Telerik » MSSQL ║ T-SQL ║ MongoDB » Angular ║ RxJS ║ NPM ║ Bootstrap ║ NodeJS ║ jQuery ║ HTML5 » Azure DevOps ║ Azure Function ║ Azure Blob Storage ║ NuGet ║ ProGet ║ Octopus Deploy » log4net Additionally, I am an expert on: » Software development processes/tools such as Agile-scrum ║ Kanban ║ JIRA ║ TFS ║ Trello » To deliver stable/quality output I have practiced concepts such as Test-driven designs (TDD) and have hands-on experience in using unit testing frameworks such as xUnit ║ MsTest ║ Moq ║ NCover ║ NUnit And I am well versed in test case design, requirements management, and automated testing (Selenium Testing). » GIT ║ GitHub ║ BitBucket ║ TFS ║ Postman
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    Microsoft Visual Studio
    Windows Presentation Foundation
    Entity Framework
    C#
    .NET Framework
    Microsoft Windows
    Universal Windows Platform
    DevExpress
    Windows App Development
    ASP.NET Web API
    UX & UI
    Microsoft Silverlight
    React Native
    XAML
  • $22 hourly
    ⭐⭐⭐⭐⭐ ✓ TOP RATED PLUS FREELANCER ✓ 100% JOB SUCCESS ✓ 30+ COMPLETED JOBS ON UPWORK ✓ 5 STAR RATING ON ALL JOBS ⭐⭐⭐⭐⭐ I am senior Mobile app developer - 5 minutes Mobile (iOS/iPhone/iPad/Android) interview with me leads you to the incredible future about your innovative mobile idea than you were expecting in the drawing board. In the Mobile Development (iOS/iPhone/iPad/Android) field, I have 8+ years experience. I always aim to maintain a long term relationship with my clients . Whether you’ve lost your original developer, need additional resources or want a brand new app , I can step in and take over wherever you need. -------------------------- My Skills ----------------------------------------- ✓ iOS apps using Objective-C , Swift 2.x/3.0/4.0 & Xamarin ✓ Android apps using Core Java & Xamarin ✓ Android apps UI using XML ✓ Restful API integration & development ✓ Push notification (APN/FCM) ✓ Social API integration like Facebook/Twitter/Linkedin/Instagram/Tumblr ✓ Parse, Firebase ✓ Audio/Video Streaming, VOIP ✓ Augmented Reality (A.R.) ✓ Apple App Store/Google Play Store submission ✓ iOS App Development -------------------------- My experiences ————————————————— ✓ VPN app ✓ iOS 11 iMessage App ✓ XMPP chat app ✓ Socket Programming chat app ✓ iBeacon, BLE app ✓ Social Networking app, Social Dating app ✓ Restaurant app, Shopping app, Travel app, Food app ✓ VOIP app, Video streaming app, Video processing app, Music app ✓ Health/Fitness app ✓ Video/Photo sharing app -------------------------- Programming Languages —————————— ✓ Objective-C, Swift 2.x & 3.0 , 4.2 & 5.0 ✓ Java ✓ Kotlin ✓ Dart
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    iOS Development
    HTML5
    Node.js
    Android App Development
    React Native
    CSS
    Flutter
  • $90 hourly
    Excellent skills at custom application development. • Broad range of custom application development for Mobile, Desktop, and Server • Mobile application development; Xamarin/.NET MAUI, iOS, Android, Bluetooth BLE • Upgrade Xamarin to .NET MAUI • Azure B2C • .NET / WPF / UWP / ASP.NET / Blazor / jQuery application development • C# .NET / C / C++ • SCADA • IoT development - ESP32 / PIC Microchip / Raspberry PI / Arduino / Linux • PLC development - Automation Direct CLICK, Automation Direct BRX Do-more, Industrial Solutions • PLC data capture - Kepware, Allen-Bradley, Fanuc FOCAS, Automation Direct, Mitsubishi, Brother, Siemens, MTConnect, OPC Client development, MQTT • Syncfusion, Infragistics, SQL Server, MySQL, LLBLGen Pro, Entity Framework, Twilio experience • Experience leading US and offshore development teams • HIPAA Business Associate Certified
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    Desktop Application
    Windows Presentation Foundation
    ASP.NET Core
    API
    Microsoft SQL Server
    C#
    Universal Windows Platform
    Blazor
    PLC
    iOS Development
    PLC Programming
    Syncfusion
    Microsoft SQL Server Programming
    Android App Development
  • $50 hourly
    I am committed and dedicated to my works and to my clients. My rules are i) Client satisfaction is the key to success, ii) Design everything before implementation and iii) Write good code with proper documentation. But I believe in exception and every rule has an exception. I have 17+ years of experience with C++/Qt/QML/Felgo, C#/VB/.NET/Xamarin/MAUI/Avalonia/iOS/Android, etc. I do also code in Node.js, Go, Rust and MongoDB for server/backend and API stuff. I have also achieved the 'Digia Certified Qt Developer' and 'Digia Certified Qt Specialist' certifications.
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    QML
    Node.js
    .NET Core
    ASP.NET Core
    XAML
    Android App Development
    Blazor
    iOS Development
    C#
    C++
    Microsoft SQL Server
    MongoDB
    Microsoft Visual Studio
    Qt Framework
  • $50 hourly
    My professional career has been running on three separate tracks : Desktop application development using Windows platform foundation(WPF) technology , Mobile application development using Xamarin technology and web development using ASP.net (MVC) technology. Since 2016, I am working on Mobile application development using xamarin ,especially with xamarin.forms. Before I have worked on Desktop application development using WPF and on Web application development using ASP.net(MVC). I am a patient , thorough person with high attention to detail.I can provide consulting, software development, testing/debugging and other services ranging from short one-hour jobs, to part-time every day work,to long-term cooperation and support. Thank you for visiting my profile and I look forward to hearing from you!
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    Model View ViewModel
    Windows Presentation Foundation
    ASP.NET MVC
    C#
  • $40 hourly
    I'm a highly-educated and hardworking mobile app developer. Working with Android and iOS platforms. Expert with native platforms. I have Bachelor's degree "Applied mathematics and programming" I have experience in C# programming about 8 years, and 6 years with mobile developing. I'm ready to resolve interesting tasks. I have knowledge in the following aspects: - Xamarin (Forms, iOS, Android). Can create custom controls for Xamarin.Froms. - Database: SQLite, Realm, Float files (CVS, XML) - Native iOS (Swift) - test driven development - GIT - Rest API, JSON - Prism, MVVMCross (good knowledge of MVVM pattern).
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    In-App Purchases
    Payment Functionality
    C#
    iOS Development
    ASP.NET Core
    Android App Development
  • $30 hourly
    8+ years of experience | 16k+ Upwork hours | 40+ Jobs | Top Rated Plus | Data Scientist | Machine Learning | Deep Learning | Expert Android/IOS developer, Cross-Platform .NET MAUI/Xamarin Native/Xamarin Forms Developer I am an open-minded individual with a proven track record in designing/architecting full-fledge solution for startups. I have strong technical skills, as well as excellent interpersonal skills. My capabilities includes: • Cross-Platform Mobile Development: Proficient in .NET MAUI/Xamarin.Forms, Xamarin.Android, and Xamarin.iOS using Visual Studio. Also skilled in Flutter, React Native, and Ionic for cross-platform mobile applications employing Visual Code. • Native Mobile Development: Accomplished in iOS development using Xcode and Android application development using Android Studio. • Backend Development: Expertise in utilizing AWS, Azure, and Google App Engine for backend development, with proficiency in RESTful API and SOAP for web services. • Web Application Development: Skilled in .NET Core 7 and .NET Framework 5 web application development using Visual Studio for Mac/Desktop support. • Desktop Application Development: Experienced in desktop application development using Xamarin or WPF. • Artificial Intelligence: Applied Artificial Intelligence to derive insights from past data, specializing in Tensorflow CNN/RCNN/LSTM and Machine Learning with XGBooast/Prophet/Random Forest. My Project Portfolio: Throughout my career, I have successfully contributed to diverse projects, including: • Maps-based applications like Google Maps • Event-centric applications like EventTribe • Health monitoring applications • Enterprise cross-platform tools, such as task management and messaging apps • Integration of Machine Learning techniques into mobile applications • Development of applications like Spotify Player using Spotify SDK • Creation of applications in Xamarin.Forms/MAUI/.NET Core and Python for healthcare Workflow and Project Management: I possess an in-depth understanding of the software development life cycle and workflow, including time reporting, bug tracking, and the use of version control tools like Git/SVN/TFS. I adhere to best practices, utilizing GitHub/Bitbucket for Git and Trello/Jira for agile methodologies. Deployment and Maintenance: My expertise extends to deploying applications on TestFlight and the Play Store for beta testing, as well as publishing mobile applications on both the Play Store and the App Store. I also offer comprehensive services for ongoing application maintenance. 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 summary, I am just one click away for finding the right solution for you. Let's connect and discuss how I can contribute to the success of your product.
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    Amazon EC2
    Flutter
    Microsoft Azure SQL Database
    iOS Development
    .NET Framework
    C#
    Mobile UI Design
    ASP.NET Core
    .NET Core
    Android App Development
    Windows App Development
    Deep Learning
    Data Science
    Python
  • $35 hourly
    I'm a skilled developer with 10+ years of experience in the software industry, especially within Microsoft, cloud & mobile app solutions. Tell me your needs and I will do my best to help you. Having previously worked with large enterprises as well as many smaller start-ups I have a broad range of experience and knowledge of the full software delivery lifecycle. Why should you hire me: ✅ I work fast and achieve your goals on time ✅ My total programming experience is 10+ years ✅ 200+ successful projects delivered ✅ Solid logic reasoning and problem-solving skills ✅ Responsiveness and high-quality delivery ✅ Best software development practices using. I am not interested in "one-hour" or "one-day" jobs. I establish long-lasting relationships with my clients. I always consider a commitment to the result as the first priority. Since 2015, I've been working as CEO at Lvivity - a boutique dev shop that I founded. My team will deliver you the best service, communication, and also reliable, and scalable code that will fulfill your business needs. Here is a list of technologies I have experience with: 🔸 Programming - .NET C# Architect, PM, BA, CEO @ Lvivity.com 🔸 Databases - MSSQL, MySQL, MongoDB, Oracle, Flat files (CSV, XML) 🔸 Source Control - TFS, GIT, SVN 🔸 API's - Google, eBay, Facebook, Linkedin, Twitter, Amazon 🔸 And much more: ASP.NET MVC/Core2/ WPF /Xamarin / SWIFT, React.Native, Flutter, Azure, AWS So, I guarantee my enthusiasm for work and fulfilling my project with inexpressible efforts.
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    UX & UI
    Angular 8
    Angular 4
    Angular 2
    Swift
    ASP.NET MVC
    JavaScript
    C#
    HTML5
    SQL
    Windows Presentation Foundation
    jQuery
    CSS
    .NET Framework
  • $100 hourly
    Expert Vetted Senior Developer with over 10 years of experience. I have been developing web and mobile apps since 2011 with excellent knowledge of software development methodologies, frameworks, and Software Development Life Cycle (SDLC) that includes all phases of systems analysis and understanding of client business technologies and processes. I have developed applications for Healthcare, Banking and Finance, Oil and Gas, Educational, US State Governments, US Military, Food | Wine and Gaming Industries. I also posses excellent verbal and written communication skills and the ability to interact professionally with a diverse group, executives, managers, and subject matter experts. I communicate with clarity, verbally and in one-on-one or group situations. Listed below are my experiences and skills: - ReactJS, Angular, VueJs, Typescript - React Native, Ionic, Xamarin, Flutter - .Net Core - Rest API, GraphQL, Firebase - PostgreSQL, SQL server, MySQL, MongoDb - Azure and AWS - Sharepoint - SalesForce - Umbraco - Microsoft Dynamics CRM - WordPress - Woocommerce - Wix Design and Development - Webflow - Airtable - Bubble - DNN - Smart TV (Tizen, WebOS, AppleTV, Android/ FireTV) - IPTV - VOD - OTT
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    Custom App
    Airtable
    .NET Core
    ASP.NET MVC
    Business Applications Consultation
    Webflow
    .NET Framework
    AngularJS
    Mobile App Development
    JavaScript
    C#
    React Native
    Ionic Framework
    Hybrid App Development
  • $80 hourly
    🕓 25,000+ hrs trusted by 70+ 😄clients worldwide 💯100% testimonial rate (not even a negative one) 🎖 AWS certified ― DevOps Engineer (Pro), Solution Architect & Certified Developer 🎖 CKA certified ― Certified Kubernetes Administrator 🎖 Xamarin certified ― Xamarin Certified Mobile Professional and Certified Mobile Developer 🏆 Top Rated Plus Upwork Enterprise Talent Clouds ⭐ Total of 8+ years mixed of mobile development and AWS cloud computing 🎖 CKA           ■ Certified Kubernetes Administrator 🎖 DOP-C01  ■ AWS Certified DevOps Engineer Pro 🎖 SAA-C01   ■ AWS Certified Solutions Architect Associate 🎖 DVA-C01   ■ AWS Certified Developer Associate ⬜ SKILLS │━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ │████████████████████████ FLUTTER ███████████████████████ │━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ │ 𝐏𝐄𝐑𝐒𝐈𝐒𝐓𝐄𝐍𝐂𝐄⠀⠀⠀⠀⠀Shared preferences, sqflite, sembast, Cookiejar, mmkv_flutter │━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ │ 𝐍𝐄𝐓𝐖𝐎𝐑𝐊𝐈𝐍𝐆⠀⠀⠀⠀⠀Dio, Flutter Downloader │━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ │ 𝐈𝐌𝐀𝐆𝐄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀Cached Network Image, Bitmap, Photo View │━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ │ 𝐀𝐑𝐂𝐇𝐈𝐓𝐄𝐂𝐓𝐔𝐑𝐄⠀⠀⠀⠀Provider, BLoC, MobX, GetX │━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ │ 𝐓𝐃𝐃⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀Mockito, Flutter Widget Test │━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ │ 𝐎𝐏𝐒⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀Bitrise, AppCenter, AWS │━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ │━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ │████████████████████████ XAMARIN ███████████████████████ │━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ │ 𝐏𝐄𝐑𝐒𝐈𝐒𝐓𝐄𝐍𝐂𝐄⠀⠀⠀⠀⠀Realm, SQLite.NET-PCL, Akavache, PCL Storage │━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ │ 𝐍𝐄𝐓𝐖𝐎𝐑𝐊𝐈𝐍𝐆⠀⠀⠀⠀⠀Flurl, Refit, ModernHttpClient, Reachability, Fusillade │━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ │ 𝐈𝐌𝐀𝐆𝐄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀Splat, EZ-Compress, NGraphics │━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ │ 𝐀𝐑𝐂𝐇𝐈𝐓𝐄𝐂𝐓𝐔𝐑𝐄⠀⠀⠀MvvmCross, Prism, ReactiveUI, Ninject, │━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ │ 𝐔𝐈⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀Syncfusion Components, Telerik, Flex, OxyPlots │━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ │ 𝐓𝐃𝐃⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀FluentAssertions, NBehave, NUnit │━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ │ 𝐌𝐈𝐒𝐂⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀AutoMapper, NodaTime, Humanizer, Polly │━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
    vsuc_fltilesrefresh_TrophyIcon Xamarin
    Bluetooth LE
    Amazon ECS for Kubernetes
    Containerization
    Docker
    Kubernetes
    Clean Architecture
    Universal Windows Platform
    DevOps
    Dart
    Bluetooth
    Map Integration
    Amazon Web Services
    Flutter
  • $40 hourly
    I am an experienced software developer with over a decade in the software industry working from desktop, web technologies to mobile applications and scalable backend services. I'll develop your Cross-Platform (iOS, Android) mobile apps and support you at every step of the journey: From refining your first idea, implementing it, to publishing your app in the App- or PlayStore, to support and bug fixes. Below you can find one of my video from youtube channel, where I implement nice UI's and custom controls in Xamarin.Forms.
    vsuc_fltilesrefresh_TrophyIcon Xamarin
    Windows Phone
    ASP.NET MVC
    C#
    ASP.NET
  • $40 hourly
    💯 After years of hard work, my 100% success rate and reviews prove my top-rated status. 🏆 Developed apps that are used by hundreds of thousands of users. 🎓 Computer Science Degree | Master in Business Administration | Flutter Expert 👨‍💻 With over a decade of experience, I specialize in developing high-quality mobile apps for iOS and Android. I founded a development agency, and you can find further details at leenspace.com. ✅ You can read our reviews on clutch.co/profile/leenspace. ⭐ If you hire me, you can expect regular feedback on progress and high-quality results. 🤖 Developing intelligent and interactive solutions using ChatGPT-4 and other AI tools. Let's take off to the next level! 🚀 Love to turn ideas into full-fledged Apps for Startups or Corporations. 🎨 We collaborate with partners to create visually stunning UI/UX applications using Figma. ☁️ We provide end-to-end solutions with scalable and secure backends using AWS, Azure, and Firebase. Let's jump on an initial 30-minute call to discuss your project in more detail and ensure our skillset will be a great fit. Best, Ignacio
    vsuc_fltilesrefresh_TrophyIcon Xamarin
    Twilio
    API Development
    .NET Core
    Payment Functionality
    Push Notifications
    Map Integration
    Flutter
    Mobile App Development
    iOS
    QR & Barcode Scanner
    Review or Feedback Collection
    Angular
    Android
    Firebase
  • $39 hourly
    I Test In Prod 😁 ... Also, ✅ HIGHEST EARNING Flutter Freelancer on Upwork. Top Rated Plus (Top 1% of all freelancers). I have worked with 🌟High Profile Clients/Organizations🌟 in my Career. Top 2 reasons NOT to hire me: 1. You don't want your startup to get a swiss-knife problem solver. 2. You don't want to make a call. The main problem with developers from overseas is that they are pretty good at tech skills but they lack the proactivity of US guys. I always think of myself as a problem solver, not just a developer. Coding it's only a tool for rectifying issues. Sure, this might be a slightly over-simplified summary of what I do, but hey, who likes to read long descriptions anyways? Instead, let's jump on an initial 10-minute call so we can cover your project and decide how my development skillset will work best for you and your project.
    vsuc_fltilesrefresh_TrophyIcon Xamarin
    GPS
    Geolocation
    XAML
    Georeferencing
    Google Play
    App Marketplace
    Flutter
    API Integration
    Chat & Messaging Software
    SQLite
    Location-Based Service
    Push Notifications
    Firebase
    Camera
  • $50 hourly
    I am a Mobile Developer with solid background in Xamarin, .NET, and Android/iOS platforms. I have hands-on experience in development of cross-platform mobile applications for a number of industries from scratch to publishing in stores and support. With decent problem-solving skills and a technical background, I have successfully accomplished all phases of software development on numerous projects, and I am willing to move forward, broaden my practical experience and develop top-notch software solutions.
    vsuc_fltilesrefresh_TrophyIcon Xamarin
    Android
    iOS
  • $70 hourly
    I'm experienced Xamarin Native developer. I use MvvmCross framework. Please check my personal portfolio fir-what-to-watch.web.app/about_us.html I have good understanding of modern mobile applications trends, you can check my portfolio. I always prefer establish good communication level with customers to provide exactly what they need and adapt fast to changing requirements. I'm confident, self-motivated and result-oriented person who can work under minimal observation. I can work both efficiently as team player and as individual. I've built and managed projects for individuals and startups. Business logic, API, database layers are in core project(.net standard library), platform projects are only for data showing and some platforms specific features with native UI and UX guidelines. Xamarin utilizes C# as its key programming language. This enables more than 70% of the code to be reused between iOS, Android and other platforms. An app built with Xamarin offers the same level of performance as that of a natively developed app. Expertise: ✅ 8 years experience in software development and more than 6 years in mobile development. ✅ Languages: C#, Objective-C, Swift, Java ✅ Strong knowledge in Android and iOS SDKs. ✅ ASP.NET, Web.Api, WCF, Windows Services, WinForms, WPF ✅ MSSQL, Oracle PL/SQL ✅ Binding Java(.aar) and Objective-C or Swift libraries(CocoaPods) ✅ Native mobile app development for iPhone, iPad, Android phone and tablet ✅ Creating complex UI iOS(Storyboard, .xib or AutoLayout), Android(xml) ✅ Database: SQLite, Realm ✅ Razor cshtml templates ✅ Communication: REST(HttpClient), WebSocket(websocket-sharp, SignalR) ✅ Social network integration: Facebook, Twitter, Instagram, VKontakte, Google+, etc ✅ Barcode scanning(Firebase, ZXing) ✅ Chatting protocol: XMPP(eJabber), Meteor(rocket.chat) ✅ Map integration: Google Maps(iOS, Android), MapKit(iOS), OpenStreetMap(Android) ✅ Payment services: In-App Purchase, Stripe ✅ AdMob (Banner, Full screen, Video) ✅ Analytics services: Google Analytics, Firebase Analytics, AppCenter, AppsFlyer ✅ CI/CD & Crash Reporting: AppCenter, Azure DevOps ✅ iOS, Android Linker(link all), proguard, r8 ✅ Distribution: Apple Store, Google Play ✅ Design Tools: Sketch, Zeplin, XD
    vsuc_fltilesrefresh_TrophyIcon Xamarin
    Model View ViewModel
    SQLite Programming
    Apple Xcode
    iOS SDK
    Android SDK
    iOS Development
    Android App Development
    Mobile App Development
    Chat & Messaging Software
    Tablet
    Smartphone
    Java
    Realm Database
    Android Studio
  • $45 hourly
    Hello, my name is Jay. I'm currently living in Tampa Bay, Florida. In 2018 I resigned from a long term, senior development position (10 years total. 9 of which were remote full time, and 1 year working in our Minneapolis office). I decided to move into freelancing and possibly freelance to permanent if I find the right opportunity. Beyond software development, my strengths are: Communication, Finding the Right Business Solutions & Delivering what the Customer and Users Expect. Since beginning software development, I've learned that consistent and clear communication is the main key to success in the completion of software projects. I've worked mostly in eCommerce, credit card processing, payment processing and hardware API integration, mobile Xamarin development, SQL Server programming & database design. Most of my work, from a platform standpoint, has been in C#, VB.NET, ASP.NET Core, ASP.NET Web Forms, Blazor, Entity Framework Core & Xamarin. I've completed multiple large software projects on a freelance basis from the ground up. From specifications planning, programming & launching into production. The first of which led to my 10-year role at my previous job after the initial build was complete and in production. Please reach out to discuss your projects! NOTE: In my reviews, the contract 'ASP/VB .NET Full Stack Developer (Long Term Relationship)' was restarted, and I've been working on that contract until now. However, I have time to engage in another contract, especially preferring a long term and consistent relationship.
    vsuc_fltilesrefresh_TrophyIcon Xamarin
    VB.NET
    Syncfusion
    Blazor
    Ecommerce Website Development
    Mobile App Development
    Telerik
    Microsoft SQL Server Programming
    Payment Gateway Integration
    ASP.NET Web API
    C#
    ASP.NET
    ASP.NET Core
  • $25 hourly
    ***✅ Top Rated Plus Freelancer (endorsed by Upwork) Need help with mobile app and web app development? Fill free to contact me any time for your project! Click the "Hire Me!" Button on my profile. Over the last 9+ years of Xamarin (Xamarin.Forms, Xamarin.iOS and Xamarin.Android) Experience, I have developed a wide range of mobile applications for smartphones, tablets. I have been spending every spare minute writing code for the iPhone and Android as well and learning everything on mobile application development. I'm mainly interested in mobile app development but I'm able to handle cross-client development including backend/API and web application. ******** My skills ********* ✅ Xamarin app development (C#, Native, Forms, Android, iOS, Telerik SDK) ✅ Program language: C#, .Net ✅ Android app development (Java, Kotlin, Google Play Store) ✅ IOS app development (Swift, Objective-C, App Store) ✅ Database (SQLite, SQL Server, MySQL, Firestore) ✅ 3rd Party API Integration (Facebook, Twitter, Vimeo, Pinterest, Youtube, Google+ API) ✅ Google maps, GPS, Current Location, Google Places, Markers ✅ Payment System (Stripe, Paypal, PayTM, BrainTree, WePay, Credit Card, PaypalHere, iZettle, Vantiv, Tyro, Mint, and AssemblyPayment) ✅ Pixel perfect, Interactive and complex UI ✅ MVVM Pattern and MVVM Framework like Prism, MVVMLight, and MVVMCross ✅ Local SQLite DB integration and EntityFramework Core with SQLite ✅ Flight mode safe application - Online-Offline data synchronisation in background. ✅ Hardware integration -Barcode scanner. which are connected though the LAN, WiFi & Bluetooth. ✅ Convert Native libraries/SDK into C# ✅ API integration (SOAP, REST, JSON, XML, XMLRPC) ✅ Push Notification (Local and cloud - APNS, Firebase) ✅ Real-Time communication integration - Firebase, PubNub, SignalR and many more ✅ Chatting Implementation & Integration. ✅ Social App Integration (Google, Facebook, LinkedIn, Twitter) ✅ Barcode Scanning & Generating ✅ QR Code Scanning & Generating ✅ MagStripe Reader (Swipe card) & NFC Reader ✅ Map Integration ✅ Deep linking using Firebase Dynamiclink ✅ Google AdMob integration ✅ Parse API integration. ✅ Unit Testing, Sanity Testing, Integration Testing ✅ Azure, Firebase, AWS ✅ Github, AzureDevOps, AppCenter, JIRA, Bitbucket ✅ Clean Code ✅ Apple and Google In-App purchase integration ✅ Publish app on AppStore and PlayStore ****** Stack of Web Technologies ******* ✅ Knowledge of Frameworks: PHP- Laravel ✅ Knowledge of HTML, Ajax, XML, JSON, CSS ✅ Knowledge of JS libraries: JQuery, JQuery UI, YUI, etc. ✅ Knowledge of template engines: Twig, Smarty ✅ Knowledge of the Bootstrap framework ✅ Knowledge of CSS preprocessors: SASS, LESS ✅ Skills with databases: MySQL, Oracle, MS SQL, Firebird, PostgreSQL ✅ Knowledge of NoSQL: MongoDB, Redis, Memcached ✅ Knowledge of OOP, SOLID and MVC concepts ✅ Skills with VCS: Git, SVN ✅ Skills with the Composer dependency manager ✅ Experience with server side JS: Node.js, Express.js, WebSockets ✅ Experience with virtual machines configuration with Vagrant and Puppet ✅ Experience with payment gateways: Pay_Pal, Authorize.Net, Solid Payments ✅ Skills with social networks API: Facebook, Twitter, Instagram, OK, VK ✅ Skills with GIS: Google Maps API, Yandex Maps API, VNetGIS ✅ Knowledge of MaxMind API, minFraud API ✅ Skills with the Photoshop graphics editor ✅ Basic knowledge of HTML Canvas and Flash What is the difference between other developers and me, and why should you hire me? ✅ Develop mobile app by following Apple, Google, and Windows development guideline. ✅ Always reply quickly and give my 100% dedication to your project to make it live. ✅ 100% Job Success ✅ 100% Client Satisfaction
    vsuc_fltilesrefresh_TrophyIcon Xamarin
    Angular 4
    Google Maps API
    Game Development
    Front-End Development
    Kotlin
    React Native
    Java
    Flutter
    Android
    iOS
    Firebase Realtime Database
    Node.js
    Swift
    Objective-C
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How to Hire Top Xamarin Developers

How to hire Xamarin developers

How do you find the right Xamarin expert to help your business create, develop, or integrate multi-platform software with Mono, Mono-Touch, or Mono for Android? Here’s an overview of what you can do to find, hire, and work with an independent Xamarin professional.

How to write an effective Xamarin developer job post

With a clear picture of your ideal Xamarin professional in mind, it’s time to write your job post. Although you don’t need a full job description as you would when hiring an employee, aim to provide enough detail for a contractor to know if they’re the right fit for the project.

An effective Xamarin job post should include:

  • Scope of work: From specific functionality to documentation, list all the deliverables you’ll need.
  • Project length: Your job post should indicate whether this is a smaller or larger project.
  • Background: If you prefer experience with certain industries or applications, mention this here.
  • Budget: Set a budget and note your preference for hourly rates vs. fixed-price contracts.

Ready to get your software project moving forward? Log in and post your Xamarin job on Upwork today.

XAMARIN DEVELOPERS FAQ

What is Xamarin?

Xamarin is a San Francisco company responsible for the powerful multi-platform common language interfaces Mono, Mono-Touch, and Mono for Android.

Modern businesses and organizations rely on applications and software suites that are often developed and implemented by businesses in very different high-level programming languages. On top of that, each one is required to interact with a multitude of different platforms and systems.

To help developers and programmers seamlessly integrate different software aspects, common language interfaces have been developed. Xamarin is one of them.

Why hire Xamarin developers?

Xamarin specialists are highly-skilled computer programmers with a wide variety of experience working with the Xamarin Mono products.

These skills can be leveraged to help organize mobile software and applications as well as develop and create networking protocols for different services.

Xamarin specialists are also familiar with the Microsoft .NET framework and can help you leverage both Xamarin products and the .NET framework in powerful and highly customized ways for your business and products.

How much does it cost to hire a Xamarin developer?

Rates can vary due to many factors, including expertise and experience, location, and market conditions.

  • An experienced Xamarin expert may command higher fees but also work faster, have more-specialized areas of expertise, and deliver higher-quality work.
  • A contractor who is still in the process of building a client base may price their Xamarin services more competitively.

Which one is right for you will depend on the specifics of your project.

Native vs. Xamarin

In the world of mobile development, you can either develop native mobile apps specifically for iOS, Android or Windows, or you can opt for two other routes—hybrid apps or cross-platform apps.

While native apps offer incomparable performance and user experience, not every company has the resources to develop native apps for each platform. Cross-platform software in particular has created a flexible, efficient alternative to native apps, yielding apps that can run on multiple platforms and devices without having to be entirely rewritten for each.

But accomplishing a native user experience without native app code comes with a few compromises: larger app file size, differences in performance, more code overhead, and in some cases, the cost of the platform itself. Not all cross-platform softwares are created equal, but some offer advantages that might be better suited to your mobile app goals.

So which route should you take? To help you weigh the pros and cons of native vs. cross-platform before kicking off your mobile project, here’s a comparison of native apps with one of the most popular cross-platform solutions, Xamarin.

What’s the difference between a native app and a cross-platform app?

Native apps can only run on one platform because they’ve been specifically written for that app, whether it’s an iOS app written in Objective-C and Swift, or an Android app written in Java and Kotlin. Being written specifically for that platform has its advantages: the code is optimized for the operating system, it can run natively on the device without compiling or a web wrapper, it has direct access to device features, and it gives users the most native-feeling user interface (UI).

Cross-platform apps have an advantage, however: they allow mobile developers to create one source code for an app using common web technologies, which the platform then converts into code for the native environment. The immediate benefits? There’s a much more native app-like performance than a hybrid app. Also, developers can reuse code that’s already been written, letting the platform handle the compiling. This makes it faster and more cost-effective.

So now that we’ve covered how native apps and cross-platform apps differ, let’s look at a popular cross-platform software, Xamarin, and see how its features and capabilities stack up to a native app.

Xamarin is a cross-platform software that generates native apps with platform-specific user interfaces (UI)s. Xamarin compiles the app’s code base and UI code by accessing native APIs for each platform, whether that’s Android, iOS, or Windows. What you get in a totally native experience you do get in file size—Xamarin has some overhead, but the native experience and launch speed users get is nearly unmatched.

Xamarin basics

  • Programming language: C#—”anything you can do in Objective-C, Swift and Java you can do with C# in Xamarin.”
  • Platforms: iOS, Android, Windows, Blackberry
  • Platforms: iOS, Android, Windows, Blackberry
  • Open-source
  • Xamarin TestCloud: TestCloud allows you to run automated testing on your apps on over 2,000 devices, and build, test and monitor your app in the cloud after development.
  • HockeyApp:  Xamarin’s mobile DevOps support, which allows you to distribute beta versions, collect live crash reports, get feedback from real users and analyze test coverage.
  • Xamarin.Forms library: This is how the native UIs are created and rendered using native controls of each platform.
  • Design patterns: MVC (Model View Controller), MVVM (Model View ViewModel)
  • Companies using Xamarin: Slack, GitHub, Foursquare, jetBlue

With native…

Developers have to write one set of native code for each platform, with that platform’s programming language and frameworks. If you want to create native apps for more than one platform, that often means double the work, double the resources, and more time spent updating, patching, and debugging each app in the future. That code is optimized for that platform, but it can run there and only there.

With Xamarin…

A shared code base requires less time and resources. When you’re working with the one, shared C# code base, that code base can be used among the three platforms, leaving the majority of the effort to creating the platform-specific UIs. Think of it like 70% Xamarin code and about 30% native code—and the Xamarin code is reusable with the .Forms library. Note that it can be helpful to have an experienced Xamarin expert who knows their way around the platform to keep code neat and organized.

Apps are easy to update. One of its core benefits is the ability to make updates, changes, and improvements to the app over the lifespan of an app relatively easily. With native, the process is similar, only it’s duplicated for each version of the app.

If you know C#, it’s not hard to learn. C# is a pretty common programming language that many web developers already know, so it doesn’t require learning another platform-specific language and framework. You’ll need to know languages for the native environments—whether that’s Java and Kotlin or Objective-C and Swift.

You’ll get device API access so your app can fully access device features. This means your app can fully access native capabilities, just like a native app. This is one way Xamarin stands out from other cross-platform softwares.

Wondering which route is best for your mobile app?

The best way to approach your mobile app project is usually to consult with a skilled, experienced freelance mobile developer like those you can find on Upwork—someone who will be able to talk through what you’re looking for from your app so you can choose the option that will give you the best results to fit in your scope, budget, and timeline.

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