Accountancy rich web application on JavaScript and ExtJs 4

We are a software development company and we are looking for a JavaScript / ExtJs 4 programmer to help us working on an accountancy related project. The main purpose of the application - is to maintain a list of client's accounts and to generate a set of reports. Techically the project consists of two parts. 1. Client - the most important one. Fully made with Ext Js 4. Consists of a number of complex forms. See a sample one attached 2. Server part - ASP.NET 4, Entity Framework 2, MSSQL 2008 Client and server parts communicate with each other through a rest and webservice apis, transmitting data in json format. Project follows MVC architecture, in some cases we use Ext Js Designer to generate form templates. You wil be given an instructions on how to integrate into the project, however we are open to any suggestions. Your main task - is to develop the forms and bind them to a mock webservice (actual data classes and webservice will be developed at a later stage) The project can be split into parts, the most suitable way for us if you take a part, estimate it and if price/terms suitable for both of us - start working on it. Requirements: - previous Ext Js 4 experience - minimum 20 hours per week - availability for skype voice chats We are located in UTC + 3 timezone (Belarus). The sample form attached is about 20% of the total work in this part of the project. Detailed specifications will be send to selected candidates. Note that we may require you to sign an NDA before sending the full specification. Please attach your Ext Js 4 samples and hourly rate to the proposal Thank you Victor