ExtJS project with ongoing work

I have an existing project written in ExtJS (4.2). It has been working well for the last couple of years but now requires some functional upgrades. I am looking for a developer with existing ExtJS experience and good communication skills. I hope to find someone who can maintain and improve this application on an ongoing basis. This first task is relatively simple and will be used to evaluate the developer for ongoing work. A new menu option needs to be added to an existing menu and a dialog created to request a password which will enable administrative mode. On submission of the entered password by the user, the password will be sent to a server and a success or failure response received. If successful, some menu options will be added to existing menus. A logout option will remove these added menu options. I will provide the existing code which you can host and develop with locally. Server data requests will be made remotely to my server. Additional details of the requirements and background information will be made available to prospective developers.