Python (Pyramid) Development - Web Application

We are looking for an expert web application developer, to work on our web application (Python on Pyramid Framework) . This is a an assessment product we are developing Required task is : Help integrate the server side python code with client side Javascript code (extjs - ajax calls from extjs to the server). JSON strings are currently passed from client to server and server to client. Total 18 views approx ( JSON requests). All have been coded , but some are working and some are not working So developer need to debug , identify the issue and fix it and help integrate. Skills Required: 1. Python. Experience with python web application frameworks ecosystem, development experience in - pylons/pyramid 2. Understanding of MVC framework with web application concepts HTTP specifications. 3. JSON 4. ORM: sqlalchemy The source code will be shared, so u need to maintain strickest confidentiality. The application flow and functionality will be explained along with necessary documents. We are preferably looking for a India based contractor, who can be available real time on chat (gmail, skype) etc, co-ordinate with frontend ( extjs - javascript) team and help integrate.