I Have gone through your initial project requirement and I have the exact match with the Skills you are looking for a current project.
I am ready to work on your project and can start work on it immediately.
I have 11 years exprience of Magento 1 and Magento2.
I have developed several modules of Payment methods, Shipping Methods, Erp/Accounting Integration, Marketplace and Marketplace Integration, Sms andMore
I hope that U will be fine and healthy.
I can solve Your problem easily as it is not a big deal.
As i have done alot of projects of Creating and Designing ecommerce Websites usin PHP, Java and HTML.