Build a Cross Platform Mobile Application

I am looking for someone who is proficient in developing cross platform mobile application (iPhone and Android ) using Xamarin. I need additional hands to work with our team in designing and developing any requirements that may come up regarding mobile development. If you feel like you have enough hands on experience working with cross platform mobile development like (Xamarin), please feel free to bid. I expect samples of your previous work in Mobile Development for serious consideration. You must have - Good understanding of Xamarin Platform. - Proficient in .NET / C#. - Experience with OAuth - Experience in consuming restful services. - Experience designing, developing good maintainable and testable code. - Experience with Azure App Service is a plus. If you are a contractor who will be hiring somebody else to do the job please do not bid.