The Best Xamarin Specialists For Hire In the United States

Check out Xamarin Specialists in the United States with the skills you need for your next job.

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$70 hourly
- 5.0/5
- (3 jobs)
As 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, Eric

Xamarin
Next.js
React Native
Java
Objective-C
Kotlin
React
Swift
Flutter
C#
Solana
Ethereum
NFT Minting
web3.js
Radar Polygon
$40 hourly
- 5.0/5
- (2 jobs)
I am an accomplished software developer with more than 14 years of experience, specializing in various technologies and domains. Throughout my career, I have been dedicated to crafting robust and scalable software solutions that align with the evolving needs of businesses. My expertise encompasses Xamarin development, C#, SQL, JavaScript, UML, TDD, business modeling, software architecture, agile development, and deployment. One of my core proficiencies lies in .NET, where I excel in ASP, MVC, WCF, WebAPI, OWIN, and SignalR. I have successfully delivered complex applications leveraging these frameworks and stay up-to-date with the latest trends and best practices in .NET development. Front-end development is another area of my expertise, where I have gained extensive proficiency in jQuery, Knockout.js, AngularJS, CSS3, Twitter Bootstrap, and HTML. I take pride in developing responsive web applications that seamlessly adapt to diverse devices and browsers, delivering an exceptional user experience. In addition to my front-end and back-end development skills, I possess a strong understanding of databases and ORMs, including SQL Server, MySQL, MongoDB, ADO.NET, NHibernate, LINQ, and EF. I am adept at unit testing using Nunit/MSTest, Jasmine/Qunit, MsSqlTest/tSQLt, and automation testing with Selenium and C#. Throughout my career, I have utilized source control systems like SVN, Git, and Mercurial, as well as CI servers such as TeamCity, and deployment tools like IIS, to optimize development processes and foster efficient team collaboration. Furthermore, I have hands-on experience with cloud technologies like Azure and Amazon, having developed applications that harness their services. One of my significant achievements as a software developer is my expertise in Salesforce development. I have been involved in numerous projects that demanded custom Salesforce solutions, including integrations, Apex coding, and Visualforce pages. Leveraging my knowledge of the Salesforce platform and .NET, I have consistently delivered comprehensive solutions tailored to my clients' unique requirements. Moreover, I possess extensive experience in native app development using Xamarin Studio for iOS and Android platforms. I am well-versed in Xamarin Forms, Xamarin.iOS, and Xamarin.Android, and I stay updated with the latest advancements and industry best practices in mobile app development. In summary, my vast experience, coupled with my unwavering passion for software development, has established me as a seasoned professional in the field. I am dedicated to delivering high-quality solutions across diverse technologies and domains, and I am excited about contributing to the development of cutting-edge software solutions in the future.

Xamarin
Health & Wellness
Health & Fitness
Microsoft Power BI
Shopify
ChatGPT
Microsoft Dynamics CRM
Mobile App Development
Salesforce
Angular
.NET Core
Yardi Software
Web Development
Desktop Application
.NET Framework
$35 hourly
- 4.8/5
- (97 jobs)
I am a Full-Stack Developer with Native iOS, Native Android, Xamarin, Flutter, React Native, React, TypeScript, JavaScript, Node.js, Angular, PHP, Laravel, and MongoDB. ★ 10+ years of experience as a Full Stack Developer. ★ Strong experience with Augmented Reality app development. ★ 12+ years of experience in Software Development. ★ 50+ apps in the app store. ★ 95+ Jobs done in UpWork. ★ 10,000+ Hours logged on UpWork. About Me: I have created many iOS/Android applications at different scales. That being said I am also a strong Android developer, I now have close to 50 apps in the Google Play Store. I feel mobile apps give me a way to show off my creativity and talent. Over these past 10 years, I have learned many things that only experience can teach. I not only create apps but help clients attain their target downloads by guiding them to the right marketing strategies. I also create websites to complement the mobile apps for administration & dashboards. So, if you want really creative, complex apps that are architecturally strong - I am the guy!! See my portfolio below where I showcase my apps. Passion: Mobile Apps, Web Development, Augmented Reality, Machine Learning. Interested? Send me an invite. Best regards, Satish Mugala

Xamarin
iPhone App Development
Amazon EC2
Vue.js
HealthKit
Android App Development
Flutter
React Native
Swift
Node.js
Amazon Web Services
API Integration
Java
Android
Kotlin
PHP
Mobile App Development
$40 hourly
- 4.5/5
- (146 jobs)
Expert 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.

Xamarin
Microsoft SQL Server
Node.js
.NET Core
TypeScript
React
Shopify
.NET Framework
ASP.NET MVC
Angular
PHP
C#
React Native
iOS Development
Android
$86 hourly
- 5.0/5
- (16 jobs)
14+ 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.

Xamarin
ASP.NET MVC
Universal Windows Platform
AngularJS
.NET Framework
Sitefinity
$50 hourly
- 5.0/5
- (2 jobs)
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!

Xamarin
C#
ASP.NET MVC
Model View ViewModel
Windows Presentation Foundation
$50 hourly
- 5.0/5
- (6 jobs)
Extensive experience managing enterprise multi-tiered web applications including server and database maintenance. Strong skills in leading and mentoring junior developers, including training on new technologies Experience in software development life cycle for intranet and extranet web applications utilizing Microsoft SharePoint Extensive use of Visual Studio C#, .Net 4.5 and Dot Net Core to create custom web solutions Ability to seek and find solutions and manage multiple tasks Experience managing SQL database, including backup scheduling and T-SQL commands Creating and consuming REST and SOAP apis.

Xamarin
JavaScript
Microsoft SharePoint
CSS
Microsoft SharePoint Designer
Microsoft SharePoint Administration
Microsoft Office SharePoint Server
Machine Learning
Microsoft Azure
Azure App Service
C#
Microsoft Office 365
Microsoft SharePoint Development
Microsoft SharePoint Administration
$45 hourly
- 4.6/5
- (65 jobs)
Over 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!

Xamarin
Shopify
WordPress
API Development
iOS Development
Android App Development
Swift
Twilio API
Ionic Framework
React Native
$70 hourly
- 4.9/5
- (49 jobs)
I’m a professional developer with over 15 years of experience: Languages: C#, PowerShell, Python, TypeScript, Java, SQL, JavaScript, Lua. Areas: Windows Forms, Windows Services, NET Core (cross-platform), ML.NET, UWP, ASP.NET, MVC, Kinect (AR/VR), WPF, Xamarin (cross-platform), Docker, Active Directory, Azure, SQL, Entity Framework, WSDL, Web.API, Angular.

Xamarin
ASP.NET MVC
.NET Core
Microsoft Windows PowerShell
VB.NET
ASP.NET Core
Angular
ASP.NET
API Development
Web Services Development
TypeScript
SQL
.NET Framework
Azure DevOps
Prototyping
Windows Forms
JavaScript
C#
$95 hourly
- 4.3/5
- (54 jobs)
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

Xamarin
Azure
.NET Core
HTML
Website
GitHub
Atlassian JIRA
jQuery
Android App Development
iOS Development
Microsoft SQL Server Programming
ASP.NET MVC
C#
Sitefinity
$100 hourly
- 5.0/5
- (6 jobs)
I 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.

Xamarin
iOS Development
Mobile App Development
Android
React Native
Objective-C
Swift
Android App Development
Flutter
Product Development
Wireframing
Computer Vision
iPhone UI Design
$70 hourly
- 5.0/5
- (1 job)
Highly skilled web apps developer who can create clean websites for small businesses or enterprise-level solutions.

Xamarin
Azure Cosmos DB
Azure OpenAI Service
Web UI
ASP.NET Web API
ASP.NET Core
.NET Core
AI Development
Blazor
Web Application
React
Angular
JavaScript
SQL
C#
$110 hourly
- 5.0/5
- (2 jobs)
10+ years professional, 12+ years concurrent freelance software engineering experience in full-stack web and mobile environments. I now own a small tech consulting company where I manage small teams of developers on a range of client projects. I am: Passionate - I genuinely love the languages and technologies that I work with every day. Whether I'm the principal architect on an app that will see tens of thousands of users daily or developing for a start-up that is bringing their bold ideas to life, the passion I have is shown through the high-quality products I deliver. Flexible - I've been a consultant or worked for start-ups most of my professional career. This means I can adapt quickly as project needs change and provide in-depth assistance for clients at the early stages of feature planning. In-Touch - I keep communication open through every step of a project's lifecycle. Through weekly status reports, regular live demos, and proactive, honest communication, I ensure that every stakeholder stays informed and that there are no surprises along the way. Let's talk about your vision, and I'll help bring that vision to life. fluenttechconsulting.com STATS: Technical Proficiencies - Mastered – C#, .NET Maui, Xamarin Forms, .NET for Android / iOS, MvvmCross, .NET MVC, JavaScript, MySQL, MSSQL Familiar and Growing – Azure Cloud Services, PHP, Reactive Programming Other Qualifications - I'm a U.S. Army Veteran! 3 years active duty, 13M Multiple Launch Rocket Systems Crew Member Others exist; please inquire.

Xamarin
.NET Stack
.NET Core
API Development
Mobile App Testing
Azure App Service
Payment Gateway Integration
.NET Framework
Mobile App Development
C#
Android
Java
$40 hourly
- 5.0/5
- (12 jobs)
I offer 7+ years of experience in software engineering while bringing a fresh, cutting-edge flavor to the design and development of your next game-changing product. Specialties: Web and Mobile development, design Languages: Bash, C, CSS, C#, C++, HTML, Java, JavaScript, Objective-C, PHP, Python, SQL, Typescript, XML Libraries & Software: Android, Bootstrap, ESRI ArcGIS Runtime, Express.js, Git, iOS, JQuery, Mongoose/MongoDB, Node.js, Vue.js, Vuex, WPF, Xamarin Android Studio, Eclipse, Excel, Maximo, Postman, SQL Developer, SQL Server, Visual Studio, WordPress, Xamarin Studio, Xcode

Xamarin
iOS Development
Twitter/X Bootstrap
Web Design
Java
JavaScript
Node.js
WordPress
HTML
CSS
$80 hourly
- 5.0/5
- (9 jobs)
I 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.

Xamarin
Apple Xcode
Apple Watch Application
iOS SDK
Swift
React Native
Objective-C
iOS Development
iOS
MongoDB
Hybrid App Development
$100 hourly
- 4.7/5
- (5 jobs)
Tim has worked in the software industry for over 30 years, with much of that time delivering technology to the retail industry. Tim has earned over 30 patents on topics ranging from securing payment networks to location technology in advertising. Tim is very startup focused - having Co-founded 4 different startups. 420 Tech is Tim's latest - bringing technology to the cannabis vertical.

Xamarin
iOS Development
iOS
Business with 100-999 Employees
JavaScript
C#
Chat & Messaging Software
In-App Advertising
Google Ad Manager
Push Notifications
SQLite
Microsoft Azure SQL Database
SQLite Programming
Azure App Service
$50 hourly
- 5.0/5
- (4 jobs)
I have been working with .net for over 15 years and have done web development, and windows forms development, web development and mobile development

Xamarin
CSS
.NET Core
VB.NET
ASP.NET MVC
ASP.NET Core
ASP.NET
Windows Forms
Kendo UI
SQL Programming
SQL
JavaScript
C#
$60 hourly
- 5.0/5
- (4 jobs)
I'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.

Xamarin
Agile Project Management
Tutorial
MadCap Software
Microsoft Office
UX Writing
Software Documentation
Editing & Proofreading
Python
C#
$70 hourly
- 5.0/5
- (6 jobs)
I am an expert in creating Android. Additionally, I have submitted many apps to the App Store, with complex interfaces, extensive web service communication, and multimedia content. I have a strong knowledge of basics, such as common design patterns(MVC), programming languages( Java, TypeScript), and Standard). Also have great experience in a various number of third-party SDKs, Google Firebase, Facebook, PayPal, Stripe, Google Maps, ad networks, etc. Skills & Experiences: ✅ Languages: Java, Kotlin ✅ Tools: Git, Bitbucket, Jira, Confluence Trello, Git Branching & Merging, PR generation & PR Review ✅ Agile methodology - Scrum, Sprint Board, Sprint Planning & Sprint Review ✅ RESTful Applications ✅ Maps & Locations ✅ Push Notification ✅ iTunes connect - TestFlight release and App store submission. ✅ Payment integrations like Stripe etc ✅ Facebook, Twitter, and Google Integration ✅ Codebase: MVC, MVVM ✅ Knowledge of JavaScript, HTML, and CSS, React Native & NodeJS. Expertise in following technologies: ✅ Android (Kotlin) ✅ Java ✅ Node ✅Angular I will provide you with good quality and satisfactory work with your approval. At last, my client's satisfaction is most important to me. Thanks for visiting my profile.

Xamarin
AWS Lambda
SaaS
iPhone
Bluetooth
Dart
Android App Development
React Native
Kotlin
PHP
Mobile App Development
Flutter
Java
C#
Swift
$95 hourly
- 5.0/5
- (4 jobs)
"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.

Xamarin
Cloud Architecture
Digital Signal Processing
Mobile Apps
Bluetooth
C
Relational Database
Firmware Programming
PCB Design
C++
Azure
Java
Objective-C
Swift
C#
$80 hourly
- 5.0/5
- (12 jobs)
I am a highly skilled and experienced software enigneer with a strong background in web development. Over the course of my career, which spans more than 10 years, I have developed a wide range of software systems using a variety of programming languages, frameworks, and databases. My tech stack includes popular front-end frameworks such as React.js, Next.js and Angular.js, as well as server-side technologies like .NET Framework, ASP.NET MVC, .NET CORE. Also I'm a pro with Node.js and Express. I am proficient in both statically typed languages like TypeScript and dynamically typed languages like JavaScript, and am familiar with a range of databases including MSSQL, MySQL, SQL Server, MongoDB, and PostgreSQL. Throughout my career, I have worked on a variety of software development projects using different team structures and procedures, and have a proven track record of success. I am a highly adaptable and flexible developer, with strong problem-solving skills and the ability to work effectively in a range of environments. I am confident that my skills and experience make me an asset to any team looking to build or improve their software products. Listed below are my skills: ✔️AI & Machine Learning (OpenGPT, Custom LLMs, OpenAI API, Langchain) ✔️ .NET Framework, ASP.NET MVC, .NET CORE, Win Forms, WPF; ✔️ Web API, WCF, GraphQL API; ✔️ Node.js, MongoDB, Express.js, WebSocket, MERN; ✔️ HTML, CSS, TypeScript, JavaScript, React.js, Redux, jQuery, Angular, Angular Js; ✔️ MSSQL, MySQL, PostgreSQL, SQL Server, Dynamo DB.

Xamarin
React Native
React
Node.js
Razor Template Engine
Azure App Service
.NET Core
MySQL Programming
Docker
ASP.NET MVC
.NET Framework
ASP.NET
TypeScript
Amazon DynamoDB
MySQL
$70 hourly
- 5.0/5
- (2 jobs)
I am a highly experienced software developer with over 14 years of expertise in a wide range of technologies and domains. Throughout my career, I have developed a strong passion for building robust and scalable software solutions that meet the needs of modern businesses. My primary areas of expertise include Xamarin development, C#, SQL, Javascript, UML, TDD, business modeling, software architecture, agile development, and deployment. One of my core strengths is my proficiency in .NET, which includes expertise in ASP, MVC, WCF, WebAPI, OWIN, and SignalR. I have developed several complex applications using these frameworks, and I am well-versed in the latest trends and best practices in .NET development. Another area of expertise is front-end development, where I have extensive experience with jQuery, KnockoutJs, AngularJs, CSS3, Twitter Bootstrap, and HTML. I have developed numerous responsive web applications that work seamlessly across various devices and browsers, providing users with a smooth and intuitive experience. In addition to my front-end and back-end development skills, I have a sound understanding of databases and ORMs, including SQL Server, MySQL, MongoDb, ADO.NET, NHibernate, LINQ, and EF. I am experienced in unit testing using Nunit/MSTest, Jasmine/Qunit, MsSqlTest/tSQLt, and automation testing with Selenium driver and C#. My experience with source control systems such as SVN, Git, and Mercurial, as well as CI servers like Teamcity and deployment tools like IIS, has enabled me to streamline development processes and improve team collaboration. I have also worked extensively with cloud technologies, including Azure and Amazon, and have developed several applications that leverage their services. One of my most significant achievements as a software developer is my expertise in Salesforce development. I have worked on numerous projects that required the development of custom Salesforce solutions, including integrations, Apex coding, and Visualforce pages. My experience with the Salesforce platform, coupled with my expertise in .NET, has enabled me to provide end-to-end solutions that meet the unique needs of my clients. My expertise in native app development using Xamarin studio for iOS and Android has also enabled me to develop high-quality mobile applications that provide users with an intuitive and engaging experience. I have extensive experience with Xamarin Form, Xamarin.ios, and Xamarin.android, and I am well-versed in the latest trends and best practices in mobile app development. Overall, my extensive experience, coupled with my passion for software development, has enabled me to become a seasoned professional in the industry. My expertise in a wide range of technologies and domains, coupled with my commitment to delivering high-quality solutions, has helped me build a strong reputation as a software developer, and I look forward to contributing to the development of cutting-edge software solutions in the years to come.

Xamarin
ChatGPT
Shopify Apps
Microsoft Dynamics CRM
Yardi Software
Product Development
Desktop Application
.NET Core
ServiceNow
Web Development
Salesforce
Angular
Mobile App Development
C#
Flutter
$70 hourly
- 5.0/5
- (2 jobs)
Hello, I'm Frank Connor, the co-founder of White Leaf LLC, and a seasoned Senior Full Stack Developer. I bring over a decade of comprehensive experience in managing complex software projects and creating innovative solutions that consistently surpass client expectations. My journey in the IT industry began as a humble developer. Over time, I honed my skills, acquired rich expertise, and broadened my understanding of various technologies, eventually leading to my position as a Senior Full Stack Developer. The tech world continues to evolve and so does my thirst for learning. I always stay at the forefront of the latest technological advancements, helping me to deliver cutting-edge solutions to my clients. I have a strong knack for creating clean, efficient code in various languages like Java, Python, JavaScript, and more. My in-depth knowledge of front-end and back-end development, coupled with my firm grasp of databases, servers, and UI/UX design, enables me to create full-fledged web applications that are both robust and visually appealing. As a co-founder of White Leaf LLC, I have been instrumental in directing our team of highly talented professionals to meet and exceed our client's business objectives. I take pride in our company's reputation for delivering on-time, high-quality software solutions that truly make a difference for our clients. I strongly believe in a collaborative approach. Whether working with my team at White Leaf or liaising with clients, I prioritize effective communication, transparency, and mutual respect. This philosophy has not only helped build long-term relationships with my clients but also fostered a creative and productive work environment at White Leaf. On a personal note, I'm a firm believer in giving back to the community. I often mentor aspiring coders and take part in various tech talks and seminars. I believe that sharing knowledge and experiences helps us all grow and develop in this fast-paced industry. Thank you for considering my profile. I'm excited about the possibility of working together to create outstanding software solutions that will drive your business forward. Please don't hesitate to get in touch if you have any questions or would like to discuss your project further. Kind Regards, Frank Connor

Xamarin
Microsoft Excel
AppleScript
FileMaker WebDirect
Database Design
Data Analytics
Database Administration
Mobile UI Design
Shopify
Mobile App Development
Data Engineering
.NET Core
Claris FileMaker
WordPress
.NET Framework
$80 hourly
- 5.0/5
- (1 job)
I 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.

Xamarin
Mac OS App Development
.NET Core
J2SE
Android SDK
.NET Framework
Java
Android App Development
Hybrid App Development
Kotlin
$85 hourly
- 5.0/5
- (2 jobs)
Greetings! I am a highly skilled and experienced Mobile App Developer specializing in cross-platform development using .NET MAUI, Xamarin, React Native and Flutter. With a strong focus on delivering exceptional mobile experiences, I have successfully developed and launched numerous applications across various industries. I am dedicated to delivering top-notch work, ensuring high quality, and providing timely updates to my clients. My Skills ●Mobile Development: .NET MAUI, Xamarin, Flutter, React Native ●Cross-Platform Development: Xamarin.Forms, Flutter SDK ●Programming Languages: C#, Dart, JavaScript ●UI Frameworks: XAML, Flutter Widgets ●Front-End Development: HTML, CSS, Bootstrap, Material Design ●Back-End Integration: RESTful APIs, JSON, XML ●Database Integration: SQLite, Firebase Realtime Database ●Version Control: Git, GitHub, Bitbucket ●Testing and Debugging: Xamarin Test Cloud, Flutter Testing ●Deployment and Publishing: App Store, Google Play Store Additional Libraries and Frameworks: ●Xamarin.Forms: Prism, MVVMCross, FreshMVVM ●Flutter: Provider, Dio, Retrofit, MobX, GetIt, Firebase SDKs ●Xamarin: Xamarin.Essentials, Newtonsoft.Json, SQLite.NET, Refit ●Connection: Bluetooth, WiFi, NFC ●Networking: Retrofit, Alamofire, Dio ●Image Processing: Glide, Fresco, SDWebImage, ImagePicker ●Data Visualization: Charts, MPAndroidChart, Flare ●Location Services: Google Maps API, MapKit, Geolocator ●Push Notifications: Firebase Cloud Messaging, OneSignal ●Analytics: Google Analytics, Firebase Analytics, AppCenter Analytics ●Payment Integration: Stripe, PayPal, Braintree ●Social Media Integration: Facebook SDK, Twitter API, Google Sign-In With a comprehensive background in mobile development, I have successfully delivered a wide range of applications tailored to my clients' specific requirements. I have developed applications for industries such as e-commerce, social networking, healthcare, finance, and more. Leveraging my expertise in .NET MAUI, Xamarin, and Flutter, I excel at creating visually appealing, high-performance, and user-friendly mobile applications across multiple platforms. Please feel free to reach out to me for further discussion.

Xamarin
Mobile App
iPhone
Android SDK
Android App
iOS SDK
Desktop Application
.NET Framework
React Native
iOS
Android App Development
Android
Flutter
iOS Development
Smartphone
$75 hourly
- 5.0/5
- (4 jobs)
I'm an experienced Full Stack .NET Developer with over 10 years of know-how in making complete web apps and software solutions. I'm good at front-end stuff like HTML, CSS, JavaScript, React, and Angular, where I make things look nice and easy to use. On the back-end, I'm strong in C# and ASP.NET (Core, MVC, Web API), where I keep things secure and running fast. I've got a history of writing clean code and know my way around modern tools, CI/CD pipelines, and cloud platforms. Problem-solving is my thing, and I work great in an Agile environment. I'm always learning to stay up-to-date in the software world. I'm here to bring my skills to your projects and deliver top-notch results.

Xamarin
Azure DevOps
Git
LINQ
Entity Framework
Microsoft SQL Server
React
Angular
TypeScript
JavaScript
Blazor
.NET Core
ASP.NET
.NET Framework
C#
$60 hourly
- 5.0/5
- (1 job)
With 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!

Xamarin
Swift
React Native
CRM Development
MEAN Stack
Software Development
React
Angular
ASP.NET Core
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