Extjs/sencha.com developer

I have posted already a few times a request on this site for a senior extjs UI developer. Unfortunately until now no qualified developer has given us a good proposal. It’s important that you are a senior extjs UI developer who can lead the front end development of an application based on Extjs. So if you are a freshman extjs developer, than this project is not for you. I noticed by looking at the offers we received from previous projects Extjs projects we placed on this site, that some bid on projects while they do not have experience with the languages needed for the project. Also I want to emphasis that a proposal needs to be related to the project description. So I received proposals from persons who talked only about experiences in general, like telling me that they know Joomla or PHP or 3d designing, etc. That’s good for you, but that aren’t skills needed for this Extjs project. So please take the time to read the skills mentioned in the project description and write your proposal based on that. It’s a big plus if we can see some explains of your work online. Ofcourse again only examples related to the objectives of this project. So no examples of joomla sites or sites in general. Show only examples related to extjs. Hope to see this time better proposals. We are looking to build a long term cooperation with some good extjs developers. The objective of this project is to define and develop an Extjs application using EXTJS, Entityframework, C# and ASP.NET. Our idea is to use also Json, RestFul, C#/MVC and or Webservice/WCF . For this task you need to have also experience with: 1. Using the Extjs Web desktop 2. To load dynamically Ext web desktop windows The complexity is that we want to load a lot of Ext Windows on the Ext Webdesktop. In the future we want to use it also to control an ERP environment. The sencha library has the problem that when a lot of controls are loaded at once that it can give performance issues in old browsers and or IE. YOU DO NOT need to develop the back end structure. So you can also apply when you only know EXTJS. The back end one of our developers can develop with you. Ofcourse its a big plus if you can work also on the C# codes and the back end of the application.