Develop Internal Web App to Track Payables, Invoices

We would like a seasoned PHP/MySQL developer to spare us from manually entering data into excel forms to calculate digital advertising payables. This entails pulling impressions delivery data from our adserver database to be used with manually entered rate data to generate payables for various types of ad units for each publisher.

This initial project will lay a foundation for an accounting/management platform capable pulling data from various 3rd-party digital ad platforms.