customize online accounting system

We are building 5 ecommerce websites of our related businesses and we would like your help longterm to customize our online accounting system. This will be rollup accounting of separate businesses that interact. Related to this will be using apis from wordpress / woocommerce to update erpnext accounting. You are invited to apply for either the business / accounting or the technical side. A technical person(s) with a good understanding of accounting concepts would be ideal..