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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$50 hourly
- 4.9/5
- (14 jobs)
I am Delaware-based Mobile development expert. I have done a lot of successful projects as iOS & Android developer for the last 7 years. I have worked with many startups, mid-scale and enterprise clients and provided them with the best return on their investment. Along with that, I also have extensive experience with ✳️ Java, Kotlin, Swift, React Native, and Flutter Languages. ✳️ AWS Services like Cognito, IAM, Lambda, API Gateway, Dynamo DB, etc. ✳️ Serverless Architecture Design & Product Development ✳️ Firebase Integration for Real-time Database, Notifications and data storage My goal is to make demanded and highly-rated projects. I have enough experience and can work hard to achieve it. Also, I provide service after projects completion. Strengths and Skills:- ✔️ iOS: Swift & Objective C ✔️ Android: Java & Kotlin ✔️ AWS, Firebase, PlayFab, Photon. ✔️ Monetization SDKs. ✔️ Google Maps Integration in iOS and Android! ✔️ Deliver on Time, the best quality work! ✔️Expert in Git & BitBucket ✔️Project Management tools: Jira, Asana, Basecamp, Trello All ears to hear your ideas and I can help you build the Solution/Product you are looking for. Best!!

Xamarin
Mobile Game Development
Game Development
Web Development
UX & UI Design
SwiftUI
AWS Development
Cloud Services
Java
React Native
Flutter
Kotlin
Augmented Reality
Android
Swift
$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
MadCap Software
Microsoft Office
UX Writing
Software Documentation
Tutorial
Editing & Proofreading
Python
C#
$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
$65 hourly
- 5.0/5
- (9 jobs)
Hello, I'm Marlos Moy, a highly skilled Full-Stack Engineer with a remarkable over 15-year track record in web development, specializing in React/Angular and .NET technologies. My passion for crafting exceptional digital experiences has driven me to consistently deliver innovative solutions. What I Bring to the Table: React/Angular Mastery: With an in-depth understanding of React.js and Angular, I create dynamic and responsive user interfaces that captivate and engage users. .NET Expertise: Proficient in ASP.NET Core and C#, I architect robust back-end systems that power modern web applications. Proven Results: I have a history of delivering projects that drive tangible results, such as increased user engagement and revenue growth. Why Partner with Me: Strategic Approach: I take a strategic and results-oriented approach to every project, ensuring it aligns with your business objectives. Collaborative Team Player: I excel in cross-functional teams, fostering effective communication and synergy to achieve project success. Efficiency and Reliability: Leveraging my extensive experience, I consistently meet deadlines without compromising quality. Let's turn your vision into reality. I'm eager to discuss your project's unique needs and how my expertise can make it a resounding success. Contact me today to get started on your next web development endeavor.

Xamarin
Sitecore
Entity Framework
.NET Core
React Native
Microsoft Azure
Azure DevOps
Angular
ASP.NET
C#
JavaScript
.NET Framework
React
$60 hourly
- 5.0/5
- (3 jobs)
Greetings! I'm Ryan, a seasoned software engineer with a proven track record in the computer software industry. With over 12 years of expertise, I specialize in the development of robust mobile applications. I am a proficient mobile app developer, skilled in Swift, React Native, and Flutter. As a backend developer, I am well-versed in Node.js, PHP, and Python. My capabilities extend to both relational and non-relational databases, statistical data analysis, machine learning algorithms, and AR. Furthermore, I bring substantial experience with Firebase, AWS, social authentication, payment gateways, third-party packages, maps, APIs, animations, and state management in Flutter, including Provider, BLoC, and GetX. 1. Native Development - Swift / Objective-C - iOS/macOS/tvOS/watchOS - UIKit, MapKit - Kotlin/Java - Apple Pay, In-app purchase, Siri, iBeacon - Web Services (RESTful APIs) - Material Design - Firebase, CloudKit, Coredata 2. Cross-Platform and Hybrid App Development - React Native/React - Flutter / Dart - Xamarin.iOS / Xamarin.Android / Xamarin.Forms As a leading mobile application developer, I am committed to crafting an intuitive, creative, and interactive mobile app that enhances engagement with your brand.

Xamarin
Python
Node.js
Kotlin
Java
Objective-C
UIKit
Firebase
React
iOS
Android
Dart
Flutter
Swift
React Native
$45 hourly
- 5.0/5
- (36 jobs)
- iOS Development - Android Development - Cross Platform Mobile development - Mobile APIs - Mobile Automated testing

Xamarin
Landing Page Design
UX Wireframe
Design Concept
UI/UX Prototyping
Web Design
Web Development
.NET Core
iPad App Development
iOS Development
Android App Development
C#
iOS
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
Sitefinity
Universal Windows Platform
AngularJS
.NET Framework
ASP.NET MVC
$33 hourly
- 4.6/5
- (66 jobs)
Hi! I am a versatile developer with a passion for creating high-quality websites and mobile apps that deliver excellent user experiences. With expertise in WordPress, Shopify, Android, and iOS, I have helped businesses build dynamic websites, functional e-commerce stores, and sleek mobile apps that stand out from the competition. What I Can Do for You: Custom WordPress sites with seamless functionality and beautiful design Shopify stores that are easy to manage, optimized for conversions, and mobile-friendly Native Android and iOS apps that are intuitive, responsive, and feature-packed E-commerce solutions with secure payment gateways and smooth user flows Cross-platform solutions to reach more users and grow your business Ongoing support and updates to keep everything running smoothly I am always committed to delivering top-notch results, whether it's a simple website or a complex mobile app. Let’s bring your vision to life! Feel free to check out my portfolio for examples of my work, and I would love to chat about how I can help with your project.

Xamarin
Shopify
WordPress
API Development
iOS Development
Android App Development
Swift
Twilio API
Ionic Framework
React Native
$10 hourly
- 5.0/5
- (2 jobs)
👋 Are you looking for a WordPress or Shopify professional to bring your website dreams to life? Look no further! With over 5 years of experience in website development and design, I'm here on Upwork to turn your ideas into reality. ### 🌟 Services I Offer 🌟 🏆 **I can create any type of website, including:** - Custom Websites - Personal Websites - Business Websites - E-commerce (WooCommerce, Shopify) - Government Websites - Real Estate Websites - E-learning, LMS Websites - Wedding, Travel, Art Gallery Websites - WordPress Sales Pages - Landing Pages - News, Magazine, Brand, Product Websites - Author, Writer, Book Websites - School, College, University Websites - Athlete, Sports, Health & Fitness Websites - Hotel Booking and Appointment Websites - Trucking, Logistics Websites - Car Rental Websites ### 🌟 Why Choose Me? 🌟 - **WordPress Development Expertise** - **Custom Website Development Expertise** - **Elementor Expertise** - **WooCommerce Solutions** - **Shopify Store Setup and Customization** - **Shopify Theme Development** - **Shopify App Integration and Development** - **5 Years of Experience** - **Customization** - **Responsive Design** - **SEO Optimization** - **Speed Optimization** - **Security** - **Money-back Guarantee** ### 🔗 Let's Collaborate Ready to take your online presence to the next level? Whether it's a WordPress website, a custom project, or a Shopify solution, I'm here to help. Let's discuss your vision and create a digital masterpiece together. ### ✨ Additional Skills ✨ - JavaScript - HTML5 - CSS3 - PHP - Java ### 🏆 Ready to start your web journey to success? Let's chat about your project and how I can help you achieve your digital goals. 🏆 Let's build your online oasis together, one pixel at a time! 🏆 --- **Keywords:** WordPress developer, WordPress web designer, Elementor, WooCommerce, Shopify developer, Shopify designer, Shopify apps, custom WordPress theme development, WordPress plugin development, WordPress website customization, WordPress website maintenance and security, Elementor website development, WooCommerce website development, HTML, CSS, JavaScript, PHP, MySQL

Xamarin
Mobile App Development
Flutter
Shopify Website Design
Shopify Development
Shopify Templates
WordPress Customization
WordPress Landing Page
WordPress Backup
WordPress Development
WordPress Optimization
WordPress Website Design
Dart
Java
WordPress
$125 hourly
- 4.8/5
- (13 jobs)
I am the Founder and Chief Executive Officer of Exquisite Software, bringing over 15 years of experience in managing software companies and over 23 years in developing custom software solutions. In my role as CEO, I am responsible for long-term strategic planning, driving growth, overseeing product development, fostering partnerships, building exceptional teams, and effectively communicating the company's culture. During my time as a student at the University of Advancing Technologies, I pursued Software Engineering and Database Development. Fueled by my passion for technology, I have continuously expanded my knowledge through mentorship, relevant courses, and hands-on experience over the past 23 years. Throughout my career, I have catered to a diverse clientele, ranging from small and medium-sized businesses to prominent enterprises such as Twilio, Pizza Hut, CR Bard, Western Window System, and Solar Innovations. My collaboration with companies across various industries has led to the successful delivery of over 1,000 projects to the market. Moreover, I have prioritized unparalleled customer support to ensure the sustained success of these ventures beyond their initial launch. To ensure optimal project outcomes, I am actively involved as a developer, project manager, and leader. I possess expertise in both Agile and Waterfall methodologies, and our daily operations leverage tools such as JIRA and GitHub. In previous engagements, I have worked extensively with High-Performance Computing (HPC), Cryptography, Big Data & Business Intelligence (BI), Web Applications, Software-as-a-Service (SaaS) solutions, Enterprise Applications, Hardware Integrations, Application Security, Database Development, Automated Testing, Prototyping, Reverse Engineering, WordPress, Enterprise Resource Planning (ERP) systems, Payment Card Industry (PCI) compliant applications and payment integrations, API integrations and development, Personally Identifiable Information (PII)/Protected Health Information (PHI) and Health Insurance Portability and Accountability Act (HIPAA) compliant applications, TCP/IP networking, and various protocols. Our team at Exquisite Software excels in Enterprise Software, Mobile Applications, Web Applications, User Experience (UX), Marketing, and Quality Assurance. By collaborating with our highly qualified professionals, you can trust that your project is in capable hands. I am committed to streamlining the journey of transforming your project from ideation to fruition, ensuring a seamless and exceptional experience for our clients. I invite you to initiate a discussion today to explore the requirements of your next project.

Xamarin
Vue.js
Kotlin
Swift
Amazon EC2
React
React Native
Flutter
UX & UI
Node.js
.NET Framework
ASP.NET
C#
Python
PHP
$100 hourly
- 5.0/5
- (10 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
$90 hourly
- 5.0/5
- (10 jobs)
I’m a Sr. Full stack mobile application developer with 12+ years of experience in mobile application development and design, specializing in Hybrid-platform (React Native/ Flutter/ Ionic/ Xamarin), Bubble.io for Android and iOS App Development. 🛡️ I have developed more than 50+ large-scale applications for a variety of domains like Banking, HealthCare, Social media, eCommerce, etc. Delivered bug-free, high-performing, and responsive applications to the clients, which helped in their businesses a lot. I spend a lot of time with the business throughout the project. I help lead and run requirements gathering meetings, demos to stakeholders and executives, and post-project concerns and backlog grooming. I have learned how to communicate effectively with both technical and non-technical audiences. The results of these business meetings are then used to form our team's sprint. I try to promote agile development with daily stand-ups, assist in weekly internal backlog grooming sessions, and help drive bi-weekly sprint plannings and retrospectives. My goal is to deliver a quality product on time to see the client happy. Skills ➡️ * Expert Flutter app development. * Expert React Native app development. * Expert flutterflow app development. * Expert Mobile app development. * Expert IOS Developer. * Expert Android Developer. * Expert React Native, Js Development. * Strong background in Objective-C, Swift, Java, Kotlin. * Backend Firebase, Aws, setup server. * Expert in Upload app in Appstore, Play store. * Expert at Core Data, Core Location. * Expert UI/UX Design in Mobile devices. More Specific expertise ➡️ * Messanger & Chat based apps * Restaurant/Hotel booking app * Social & Event based apps * Stripe Payment gateway * Push Notification service * Banking apps * Fitness/Health sector apps * Geo-Location related app * Creating SDK and Framework * Photo filter related apps * Live streaming Additional ➡️ * Bitbucket * GitHub * Svn * CICD * TestFlight * AppCenter * SonarQube * Jira * Crashlytics Let's catch up on a discovery call 📞 and I might be able to build you an Awesome Product. Cheers! Allen 🧔

Xamarin
Kotlin
ASP.NET
C#
Android App Development
Smartphone
Firebase
FlutterFlow
Chat & Messaging Software
Native App Development
Bubble.io
Figma
Flutter
Mobile App Development
React Native
$100 hourly
- 5.0/5
- (31 jobs)
Highly skilled web apps developer who can create clean websites for small businesses or enterprise-level solutions.

Xamarin
Azure OpenAI Service
Web UI
ASP.NET Web API
ASP.NET Core
.NET Core
AI Development
Blazor
Web Application
React
Angular
Azure Cosmos DB
JavaScript
SQL
C#
$55 hourly
- 5.0/5
- (11 jobs)
I am a high energy professional who is capable of managing multiple projects without sacrificing quality and communication. -7+ years of experience with extensive experience designing and developing websites, iOS, and Android mobile apps, -UI/UX Design, Frontend HTML5, CSS3, Javascript/Typescript, Bootstrap -Ecommerce development(Wordpress, Woocommerce, Squarespace, Weebly, Wix, Shopify etc) -Ionic/Xamarin. React Native, Swift/Java -Javascript frameworks(React/Angular/Vue) -Backend(NodeJS, Laravel Framework, AWS, MongoDB) -Data Visualization (D3JS, Highcharts, Chart.js) -Python/Django, Ruby, Rails, PostgreSQL An enthusiastic self-starter, I know how to move forward without a lot of supervision and take your project to the next level.

Xamarin
Shopify
Python
Graphic Design
React Native
Vue.js
Node.js
React
JavaScript
WordPress
$60 hourly
- 5.0/5
- (1 job)
*Computer Systems Engineer with strong programming skills in software development. *Engineer offering a strong foundation in software engineering and programming principles across multiple platforms. *Experienced in object-oriented programming; developing, testing and debugging code as well as designing interfaces. *Quickly learn and master new technologies; successful working in both team and self-directed settings. *Good working knowledge of agile methodologies in project management.

Xamarin
HTML5
JavaScript
C++
Java
C#
RESTful API
Laravel
.NET Core
Android
.NET Framework
ASP.NET
iOS
Microsoft SQL Server
Blazor
$35 hourly
- 5.0/5
- (4 jobs)
Thanks for visiting my profile. I am expert of mobile development I can do everything I'm actively finding

Xamarin
Android App Development
iOS Development
React
Node.js
React Native
Kotlin
Angular
Swift
Flutter
$70 hourly
- 5.0/5
- (5 jobs)
Hello. Thank you for interesting in my candidature. I offer quality, fast and smart web development with long support and excellent commercial effects. 13 over years of experience in Analysis, design, development and implementation of client/server applications, web applications, and Mobile applications with proficiency in object-oriented analysis and design by using Microsoft .NET technologies, C#, PHP, ASP. Net, Javascript and Xamarin.

Xamarin
Symfony 4
.NET Core
Angular
Node.js
SQL
Mobile App Development
React
PHP
C#
Laravel
Vue.js
.NET Framework
ASP.NET
Azure DevOps
React Native
$60 hourly
- 5.0/5
- (9 jobs)
I am a Full Stack Software developer, with 8 years of experience building successful products that make a difference in a business's bottom line. ✅ "Fisayo is a fantastic find. We did a project with a lot of changes and he was able to pivot with us." ✅ "My experience working with Fisayo thus far has been pleasant. He is efficient, undoubtedly talented and knowledgeable." I always focus on the solution, not on the problem. I have extensive experience with the technologies involved in web & mobile development, on both the backend and frontend. I am capable enough to build anything you might need both now and in the future. I am highly skilled in all aspects of the software development cycle, from the requirements gathering and planning through development and maintenance. I enjoy always learning and finding the best solution to a problem. I love helping people bring their ideas to life.

Xamarin
Unity
React Native
Swift
Node.js
Java
Python
C#
.NET Framework
WordPress
$45 hourly
- 4.9/5
- (14 jobs)
Personality: Kind ENTJ Mission Leveraging AI to enhance quality of life. Vision Embracing Kaizen for continuous improvement, adhering to best practices, and maintaining a healthy, athletic lifestyle. Prioritizing clean, reliable code through Test-Driven Development and integration testing. Purpose: Establishing a thriving startup focused on AI innovation. Goal: Developing widely-used AI open-source APIs. Technical Profile: Hardware: RTX 4090 MSI GPU, Threadripper CPU, 128GB RAM, 7TB storage. Operating Systems: Ubuntu, Pop_OS (AI development and servers), macOS (Apple native apps), Windows (Windows, Android, SQL Server). Programming Languages & Frameworks: Fluent in Python (PyTorch, NumPy, CUDA), C# (.NET, Azure, Xamarin), HTML/CSS/JS, Docker, Kubernetes, Prometheus. Pipeline Tools: Jenkins, Git Actions, Selenium. Database Management: SQL, MongoDB, PostgreSQL. Mobile App Development: iOS and Android (MVP apps deployed). UI/UX Design: Figma, Bulma CSS, Bootstrap. Analytical Skills: Software: Microsoft Office Suite, Google Analytics, Tableau, Power BI. Languages & Libraries: Python (Pandas, NumPy, Matplotlib), R, D3.js. Visualization Tools: Tableau,Plotly, Bokeh.

Xamarin
iOS Development
UI/UX Prototyping
Game Audio
Swift
Game Art
Android App Development
Music Production
Mobile App Development
ASP.NET MVC
C#
ASP.NET Core
$125 hourly
- 4.7/5
- (5 jobs)
Thank you for viewing my profile! A little about me: I am an expert C# developer - with 25 years of experience. The last 10 years, I have developed nearly 60 mobile apps using Xamarin Forms and dot net Maui. I have 10+ apps in the App Store and 40+ apps for internal distribution. My projects have been for the following industries: Retail Banking Securities/Crypto Field Service Manufacturing Social Media I have worked with startups as well as Fortune 500 Companys. I am very customer-centric delivering value to my clients and their customers. I am great with Teams and leveling up other team members. I am extremely technical but can relate to non-technical clients. I have built thousands of APIs, including integration with: -Quickbooks -Firebase -DocuSign -Identity Server -SignalR -SendMail -MailChimp -Hubspot -UPS -FedEx -Intrinio Mobile: -Xamarin/Xamarin Forms (14 years) -Maui (4 years) -React Native (3 years) Back End: -Asp.net (10 years) -React (5 years) -Blazor (5 years) -Azure (16 years) -MongoDb (7 years) -SqlServer (25 years) I am looking forward to helping you with your project!

Xamarin
API
Blazor
Google Ad Manager
Microsoft Azure SQL Database
SQLite Programming
Azure App Service
Mobile App Development
iOS
C#
Chat & Messaging Software
In-App Advertising
Push Notifications
SQLite
$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
.NET Core
SQL Programming
Windows Forms
CSS
JavaScript
Kendo UI
C#
ASP.NET MVC
SQL
ASP.NET Core
ASP.NET
$60 hourly
- 5.0/5
- (2 jobs)
Brian is senior level iOS and Full Stack Web Developer with a strong passion for creating amazing user interfaces and experiences. He's very comfortable working anywhere in the development stack and has 10+ years doing it. He's well spoken and very easy to communicate with, is quick to respond, and excels at figuring out optimal solutions for any challenge you present to him. He has an entrepreneurial drive and understands the challenges startups face.

Xamarin
React Native
Flutter
Android
Objective-C
C#
Python
Java
.NET Framework
C++
$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
PCB Design
Objective-C
Swift
C++
Digital Signal Processing
C#
C
Java
Firmware Programming
Relational Database
Bluetooth
$80 hourly
- 5.0/5
- (13 jobs)
⏳ Years of experience in both front and back end mobile app development 🎓 Certified iOS developer 🌎 Experience working with teams around the globe My love for software was engrained in me since before I could walk with my dad’s arcade business. Though I didn’t have the opportunity to get on my coding journey until later in my adult life, I have always kept up with and been fascinated by how much computers have progressed. I truly love what I do and would love to dive right into your next project. I was blessed to be able diversify my experience right from the beginning. After teaching myself python and graduating with top marks from my iOS developer program I was able to move into a small start up, where the needs were as varied as they were pressing. I maintained and updated back end REST APIs, Docker managed databases on top of the mobile app they hired me for in the first place. During that time I also started doing my first freelancing through connections I made in school and started dabbling with other sites like Fiverr. Now I’m here on UpWork to establish myself a build the same reputation on line that I have earned in personal connections. SO THAT’S ME, BUT WHY DO YOU CARE? ✅ Communication: It doesn’t matter how skilled a developer is if you can’t communicate your vision to them. I have put in the work through my experience working with a wide variety of clients and circumstances to make honest sincere open and timely communication the only acceptable standard. ✅ Forward looking: You need a partner, not a mercenary. I have worked on so many projects where the developer was just there to collect a paycheck. They took shortcuts and it showed in their code as it missed clear documentation, and use of best practices. I treat every project as if it were my own; being mindful to make the code as clear and maintainable as possible by keeping up with industry standards. ✅ Timely: If you had time you would have either hired a new guy or waited until your current team had room in their backlog. I respect your timeline and I make your urgency my own. I look forward to working with you. Whether you’re a start up needing that extra push to get your idea off the ground, or an established business looking to add that next feature, update to the lates technology or scale your services to the next level; let’s build something great together.

Xamarin
Dart
Blockchain
RESTful API
iOS SDK
React Native
Firebase
Swift
Kotlin
Java
Android
iOS
Mobile App Development
ARKit
Map Integration
$75 hourly
- 4.6/5
- (6 jobs)
Strategic-thinking and driven IT professional with more than 10 years of experience in insurance, real estate, healthcare, technology, and other industries. A proactive and innovative Senior Software Engineer & Architect with in-depth knowledge regarding a wide array of technology and solution. I am a full-stack developer specializing in C# and .NET development. I am extremely passionate about development and technology. In addition to my back end expertise, I am also well versed in front end development, with strong JavaScript skills. Ever since childhood, I've been intrigued by the inner workings of computer programs and software. Like my peers, I was immersed at a young age in the flows of information made available through easy access to computers and the internet at large, and I have leveraged my background to become a skilled software engineer during my time at the Rochester Institute of Technology. I have learned how to build modular, dependable, and maintainable code; more importantly, I have learned how to work within the confines of a team to deliver software on an industrial scale, while maintaining flexibility and agility in a rising age of disruption and market volatility. I bring to my work a passion for continuous improvement and finding reliable, cost-effective solutions to problems set before me; I'm eager to learn more and better myself as I progress in my software engineering career. I am fluent in agile and scrum methodology, and can effectively contribute to all phases of the software development lifecycle. I am capable of working with various tech stacks, frameworks, team collaboration programs, and version control software. Specialties: HTML5, CSS3, ASP MVC v4 & v5, .NET Core frameworks, MS SQL Server, EntityFramework, Hibernate, AWS SQS, MS Azure Queues, SignalR, Knockoutjs, BackBone, Angular, AnuglarJS, MS Dynamics 365, NetSuite, Java, C#, Razor Pages and Blazor, WinForms, Linux, Windows, NServiceBus, Quartz, TopShelf, WCF RESTful, MS WebAPI, SOAP, JSON, XML, ETL process, Git, Continuous Integration (CI), Docker, Kubernetes Career Objectives: | .NET Frameworks | CRM | ERP | Full Stack Development | Enterprise Architecture | Service-Based Architecture | Workflow Management | SaaS | Databases | Microservices | Agile Methodology | Microservices |

Xamarin
Tableau
Microsoft Dynamics 365
Blazor
Microsoft Azure
.NET Framework
jQuery
Java
ASP.NET MVC
JavaScript
Microsoft SQL Server
Angular
C#
Entity Framework
$75 hourly
- 5.0/5
- (2 jobs)
I am a Full-Stack Engineer working primarily in ASP.NET and C#. I am also a certified Umbraco Professional. I have experience with the MERN & MEAN stack as well and love brining clients' websites to life from design to deployment. Self-motivated problem solver, leader, and natural communicator.

Xamarin
Tableau
Microsoft Power BI
Electron
Umbraco
MERN Stack
Microsoft Dynamics 365
Microsoft Dynamics CRM
MEAN Stack
C#
ASP.NET
JavaScript
Microsoft SQL Server
Amazon Web Services
$80 hourly
- 5.0/5
- (1 job)
I am a reliable software developer with over a decade of experience in full-stack development. Throughout my career, I worked for various companies like large eCommerce stores, international startups, and Fortune 500 companies. I feel comfortable working in multiple roles involving all aspects of software development architecture and lead.

Xamarin
Test-Driven Development
ASP.NET Core
Bootstrap
Microsoft Azure
Redis
Angular
PostgreSQL
Amazon Web Services
.NET Framework
.NET Stack
.NET Core
ASP.NET
C#
TypeScript
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