Hire the best Xamarin Specialists in the United States
Check out Xamarin Specialists in the United States with the skills you need for your next job.
- $70 hourlyAs a senior web and mobile app developer, I have more than 7 years of experience in building, testing, and distributing both web and mobile applications. I have experience in building on-demand service apps that feature location functionality. I'm proficient in integrating third-party apis such as Google Maps, Plaid&Stripe for payment processing, and SendGrid&Mailchimp for email marketing. Additionally, I have extensive experience in developing native Android and iOS apps, as well as cross-platform applications using React Native, React, and Flutter. I've also worked on blockchain, NFT minting, and social applications that include features such as wall buying, selling, transferring, minting, posting, friend listing, notifications, and chat functionality. ReactNative: 9/10, over 5 years of experience. React: 9/10, over 5 years of experience. iOS: 8/10, over 5 years of experience. Flutter: 8/10, over 3 years of experience. Android: 8/10, over 3 years of experience. Xamarin: 7/10, over 2 years of experience. Some Industries I have worked for: 1) Social apps(Android/iOS/Laravel) 2) Health/Medical/Fitness apps(Android/iOS/ReactNative/Python) 3) On demand service apps(Android/iOS/ReactNative/Node.js) 4) Event apps(Android/iOS/C#/Xamarin) 5) Blockchain/NFT auction and minting apps(ReactNative/Web3.js/Ether.js/Ethereum/Solana/Polygon/Golang) I would be delighted to discuss your project details in more depth on a call, if possible. I look forward to getting started on your project. Please let me know if this is something that interests you and we can schedule a call at your convenience. (24/7) Best, EricXamarinNext.jsReact NativeJavaObjective-CKotlinReactSwiftFlutterC#SolanaEthereumNFT Mintingweb3.jsRadar Polygon
- $40 hourlyExpert Full Stack developer having skills in Android, iOS & Web Development. I have 12 Years of experience in Mobile Application Development (Flutter/React Native), Dot.net, MERN Website Development. 5 star rating from last 23 completed projects. My specialization is in building social networks, streaming apps, tools, utilities, e-commerce apps, consumer-facing products and B2B solutions. - Website Skills: React, Angular, PHP, Wordpress, CakePHP, Magento, .Net, MySQL, CodeIgnitor etc. - Android/iOS: SWIFT, Java, J2EE, Objective C , C# , C++, C. - Hybrid framework: React Native, Flutter, Angular, NodeJS - Web service: XML/JSON, REST/SOAP - Cloud backend: Amazon S3 EC2 AWS, Firebase, Parse, Twillio - Online Payment Gateway: Paypal, Authorize.net, Stripe, PayUMoney, Braintree, Juspay - Tools: Visual Studio Code, X-Code, Android Studio, Netbeans, GitHub, Gitlab, Twilio I have done mobile applications ranging from Tiles manufacturing company, Hospitals, Pharmaceutical company to Entertainment applications like Kids ABCD and maths game. I have developed many web applications for ecommerce, agricultural warehouse management, Advertisement Network etc.XamarinMicrosoft SQL ServerNode.js.NET CoreTypeScriptReactShopify.NET FrameworkASP.NET MVCAngularPHPC#React NativeiOS DevelopmentAndroid
- $86 hourly14+ years professional web and app development experience, specializing in the Sitefinity CMS by Telerik. I have developed dozens of public-facing websites using Sitefinity, including several dozen custom controls and modules. Also have experience with Kentico, Sitecore, and custom .NET Core sites using Angular and Vue JS.XamarinASP.NET MVCUniversal Windows PlatformAngularJS.NET FrameworkSitefinity
- $50 hourlyMy 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!XamarinC#ASP.NET MVCModel View ViewModelWindows Presentation Foundation
- $45 hourlyOver 9+ years of experience developing awesome websites and mobile applications. I am based in the US 📌 Web Development Technologies(WordPress, Shopify, Magento). Here are a few things among many: ✔️ Custom theme development. ✔️ Custom Integrations with external apps. ✔️ Customize a pre-existing template ✔️ App development and integration ✔️ Platform migration to Shopify (from Magento, WordPress, etc) ✔️ and much more... let me know what you need. 📌Mobile App Technologies: Android/iOS/ReactNative Industries I worked for: ✔️ Marketplaces (Similar to Uber in the fitness and beauty industry) ✔️ Real Estate ✔️ Social Mobile and Web startups ✔️ Cannabis startups ✔️ E-commerce (Shopify, Woo-commerce) ✔️ News/Media and Law ✔️ Learning Management Systems 📌 Fast and responsive communication. You can always set up a call with me anytime to chat about your project. 📌 Trustworthy and transparent. I take pride in building honesty and long-term relationships with my clients. I put our best foot forward to provide you with the highest quality service. 📌 Thorough development and deployment process that ensures quality. Each issue/task is run through a comprehensive workflow which includes: Discovery and clarification, Design / Development process, Quality Assurance review, Code Review, and Deployment. I stand with my clients through thick and thin. I strive to build long-term relationships and maintain a high-level Looking forward to working on your project and bringing it to life!XamarinShopifyWordPressAPI DevelopmentiOS DevelopmentAndroid App DevelopmentSwiftTwilio APIIonic FrameworkReact Native
- $95 hourlyOver 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, USAXamarinAzure.NET CoreHTMLWebsiteGitHubAtlassian JIRAjQueryAndroid App DevelopmentiOS DevelopmentMicrosoft SQL Server ProgrammingASP.NET MVCC#Sitefinity
- $100 hourlyI fix overseas mistakes. Seriously I am appalled by people who think cheap = good. Former CTO of three start-ups. One was an app acquired by Amazon (SHOPPLER) and the other in the AI space (Cloudsight.ai). I also have excellent experience with video streaming. Most of the clients I have worked with thus far on this site had tried the cheap route abroad and I fixed them. I have worked at the several well known companies such as FANDUEL and TJMAXX. I was the lead app developer at the prestigious XPRIZE. I have created three apps that have had more than 1 million downloads. This means I can build robust apps that scale. I am here on Upwork because that's how I found one of the start-ups I have worked at that have had a great exit. I am a senior iOS/Android app developer with actual apps on the app store. I have excellent references and am local. I have several apps that have crossed the 100k+ download threshold and at least two that are 1Million+. I do not outsource overseas, and I am available to meet in the SoCal area as needed. I will work with you from inception of your app idea to launch on the app store or I can solve bug fixes as well. Hire me if you are looking for a serious person who will bring a CTO mentality of getting things done, someone with over 20+ years of problem-solving. Please do not let my hourly rate frighten you (it is there to eliminate non-serious offers). My skills are - Proficient with SwiftUI as well as React Native/Flutter to create hybrid or cross platform apps - iPhone,iPad, WatchKit App Development with SwiftUI, Objective C and Swift/XCode. - Android development with Android Studio and Kotlin -Streaming with MUX, Agora, Wowzaa - Bluetooth Low Energy, iBeacon - Integration of PayPal or Stripe SDK - Integration of Barcode scan/WalletPasses - Core Animation - Push Notification (APNS, GCM) - Storyboard, AutoLayout - iOS Keyboard Customization - Integrating in-app purchase - Integrating iAd and Admob - UI design of iOS and Android app - Video/Audio processing - Google Map Service, Apple Map Service, Geo Location - Camera/Photo manipulation stitching - Chatting by XMPP Framework - Callkit (Voip for apps) - Managing databases (MONGO, NoSQL, SQLite, Core-Data Model) - Working with Github, Bitbucket - Integration of Social Networking (Facebook, Twitter, Instagram, Youtube...) - Video/Audio Streaming, Video Editing, Decoding/Encoding -NodeJS -Mongo/PostGres - React. Vue, Next - Web Service, Ajax, XML, JSON - Back end admin panel -Piano integration -RevenueCat In the AI space I led the development team at CAMFIND (two million downloads) and TAPTAPSEE which uses AI for image recognition and now image captioning in real time. I also created Predictive Chat which mimics human like chat for the mortgage and lease renewal industry (sold to YTEL). In the blockchain space I was the lead developer for VIBEHUT and DESOFY Thank you for your time and consideration.XamariniOS DevelopmentMobile App DevelopmentAndroidReact NativeObjective-CSwiftAndroid App DevelopmentFlutterProduct DevelopmentWireframingComputer VisioniPhone UI Design
- $80 hourlyI am a highly skilled and experienced mobile app developer with a proven track record of success in developing high-quality, user-friendly apps for iOS, Android, Xamarin, and Flutter. I am proficient in all of the latest technologies and frameworks, and I have a deep understanding of mobile app development best practices. I am also a great communicator and team player, and I am confident that I can be a valuable asset to your team. I am passionate about helping startups succeed, and I am confident that I can help you develop the next great mobile app.XamarinApple XcodeApple Watch ApplicationiOS SDKSwiftReact NativeObjective-CiOS DevelopmentiOSMongoDBHybrid App Development
- $60 hourlyI'm a software developer and technical writer. I've seen legacy codebases, brand new systems, and a bunch of things in between. I recently finished out a term at Temporal Technologies. Before that, I worked for a warehouse automation firm and a pharmaceutical software company. I've written manuals, how-to's, tutorials, conceptual pieces, knowledge base articles, references, and much more. I can also just review some docs for you. I majored in computer science and minored in technical writing. I also have a concentration in cyber security.XamarinAgile Project ManagementTutorialMadCap SoftwareMicrosoft OfficeUX WritingSoftware DocumentationEditing & ProofreadingPythonC#
- $95 hourly"Wayne is not only skilled at directing a software product from an architectural standpoint, he also is able to understand it a micro level. As a result, he usually has a very complete grasp of any code he works with for any significant amount of time, whether it's something he's designed or something others have designed." -- Jim K "I experienced Wayne as a highly skilled and motivated software engineer, with a fast and analytical mind. His expertise and creativity always made him the default technical lead of the team. I highly recommend him." -- J. Ovesen With the right software engineer, your project can be done right the first time. When the strongest developers are 10x better than the weakest, working with someone with the lowest hourly could be more expensive than working with a strong engineer with a higher rate! I have been writing software for 30 years, from web, mobile, and desktop apps to firmware written in assembly. I understand software development at its core and can therefore handle your project expertly. In addition, I have been leading software development teams for 2 decades so I can help you manage a team if that is what you are looking for. On the mobile app side, I wrote the first few versions iOS and Android apps for Sound World Solutions, and internal tools in Xamarin and Swift. I also wrote and maintained an inventory management app that used barcode and RFID scanners in Xamarin. On the desktop side, I was the technical lead for the fitting software at GN Resound in the early 2000s. Recently, I have written factory test software and a lot of internal tools in C#/WPF. I have also written desktop software in Java for cross platform compatibility. On the firmware side, I have written the software on a hearing aid on 2 different chipsets and 2 different DSPs. These were written in C and assembly. For web apps, I have worked on e-commerce sites for Sound World Solutions and, too many moons ago, on J2EE and ASP. Currently, I am working on a project in Laravel. As you can see, I can help you with your project! I am efficient and deliver quality code. Please get in touch if you would like me to join your team.XamarinCloud ArchitectureDigital Signal ProcessingMobile AppsBluetoothCRelational DatabaseFirmware ProgrammingPCB DesignC++AzureJavaObjective-CSwiftC#
- $80 hourlyI am an experienced developer specializing in Java, Kotlin, .NET MAUI, and Xamarin. With a strong background in mobile app development, I have a deep understanding of these technologies and a passion for creating high-quality, robust applications. I excel in designing and implementing user-friendly interfaces, integrating APIs, implementing complex business logic, and ensuring optimal performance. I am dedicated to delivering exceptional results and helping clients achieve their goals through innovative software solutions.XamarinMac OS App Development.NET CoreJ2SEAndroid SDK.NET FrameworkJavaAndroid App DevelopmentHybrid App DevelopmentKotlin
- $60 hourlyWith over 25 years of dedicated experience in software, communications, and product development, I am your seasoned technologist, ready to drive your projects to success. My deep immersion in operations, R&D, and financial management systems has honed my expertise, making me your go-to professional for various technical solutions. 🔧 𝐌𝐲 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 𝐈𝐧𝐜𝐥𝐮𝐝𝐞𝐬: ✅ 𝐅𝐮𝐥𝐥-𝐬𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: From concept to deployment, I excel in building robust and scalable applications using .Net (Core/Webform/Blazor/MVC), Java, PHP, Node.js and Python. ✅ 𝐀𝐏𝐈/𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: Harness the power of your data with API and backend development expertise. I work with .Net, Java, PHP, Node.js, and Python to create seamless integrations and efficient data management solutions. ✅ 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: Bring your vision to life with responsive and user-friendly interfaces using jQuery, AngularJS, Angular 2+, ReactJS, and VueJS. ✅ 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭: Ensure data integrity and accessibility with expertise in MS SQL Server, MySQL, PostgreSQL, and MongoDB. ✅ 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: Reach your audience on their devices with mobile applications built using Kotlin, Java, Swift, React Native, Xamarin, and MAUI. ✅ 𝐐𝐮𝐚𝐥𝐢𝐭𝐲 𝐀𝐬𝐬𝐮𝐫𝐚𝐧𝐜𝐞: Guarantee the reliability of your software with rigorous quality assurance testing and bug-fixing. My dedication to staying up-to-date with the latest industry trends and my commitment to delivering high-quality results sets me apart. I take pride in tackling complex challenges and finding innovative solutions that drive business growth. Let's collaborate to turn your ideas into reality. Contact me today to discuss your project and explore how I can help you achieve your goals. 📞 Let's connect and get started on your next project!XamarinSwiftReact NativeCRM DevelopmentMEAN StackSoftware DevelopmentReactAngularASP.NET Core
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