Android Database Program / Take over development

looking for an application to keep, store and be able to recall, as well as some reporting for an on call job's. It would keep track of times, whom you worked with and tons of info about the job. Be able to handle some calculations as well as keep track of pay and expense information. The data will need to be shown through a view different methods one of which could be a calendar showing the different jobs you have worked through out the month.