Dynamics Sales development + Business Central connector setup

We are looking developer for following tasks (Dynamics Sales)
Adding margin calculation functionality to opportunity and quote
Minor tweaks e.g., autofill invoice address on Quote based on account
Quote template customization (template given)
Optimizing sales process

Business Central connector setup (it is setup but needs checking due few errors).

We only reply to developers who can prove:
Have done similar developers to some customers (margin calculation) and can present solution.