WordPress custom plugin dev to sync orders/products between another CMS

We are looking for a developer to finish off a almost ready custom plugin. A is WordPress B is another CMS sync orders from A - B sync synced order information from A - B and B - A sync products from B - A sync stock status from B - A sync shipping notes from B - A We have already developed plugin and it is almost ready but it would need specialist to look it through and make sure everything works properly. We will give more information in the meeting.