MVP – web application based on G. Maps

We are looking for an experienced developer to create a web application based on g. maps. This is a long-time project which needs to be completed in a few steps. The MVP is the first step, budget for this part is 1 800 USD. By clicking on an icon/area on the map a pop-up appears, logged in users must be able to resister a task, read and add information, upload photos, etc. All info will be stored in databases and accessed by certain users via admin dashboard. Depending on requests from our customers, certain features must be added, customized and updated (new projects will be created).