Laravel Developer for SaaS app -- 2

Hello! I'm looking for a talented Laravel developer to help me create a web platform SaaS application. Specifically, we are building eCommerce Product Information Manager and Channel Integration software (similar to ChannelEngine, ChannelAdvisor). Experience in multi-tenant SaaS is a must

Here is a summary list of current and needed features:

Each company
- can have multiple users
- can sync product data from a Source (PIM/ERP/CSV) to our platform database
- can have custom product attributes and attribute groups in our platform database
- can have custom pricing groups
- can sync this product data (as Listing) to integrated platforms (eBay, Amazon, Kogan NZ etc) and they can map the data based on channel platform requirement.
- Each channel has it's own category / field requirements eg Colour field can only be values: Red, Blue, Green. So translate Orange > Red etc
- receive order data back to our platform database from channel platform (eBay, Amazon etc) (and map fields per custom requirements eg: 'EB' {{firstname}} as First name field)
- sync order data from our platform to the Source (and map per custom requirements)
- sync tracking data from Source to our platform, then to the channel

NOTE: This is for backend development only as the Frontend is handled by Angular.

So you must have good understanding of databases. Address the requirements above and put 'saasbackend' in your proposal to standout from autobids