Component modification to Joomla standards

Hello, we already have a component which shows various information for cities around the world, in our website. Unfortunately, the programmer hasn't used any joomla standards, for example there are no template views where we can add a menu item for a particular city (even though the cities exist in the mysql db) and we cannot place different modules on different pages of the component (since no menu id's exist). We want someone (a team or an individual) to correct the component, making it possible to have different modules in different cities and having the ability to create new menu items with the city we want. This is more of a test for a candidate -person or team-, to continue working for us long-term, so I expect your offers to have that in mind. We want someone capable, with knowledge of joomla and joomla's subsystems, proficient in html, php and javascript. We want our choice to continue working on our website, developing it even further. For any additional information, you can pm me.