Shopify E-commerce Website Publication and Functionality Setup

I need a skilled freelancer to assist with the final steps of publishing my Shopify e-commerce website and ensuring all necessary e-commerce functionalities are fully operational. This includes reviewing the existing setup, configuring payment gateways, setting up shipping options, and making sure the store is ready to accept orders. The ideal candidate will have experience with Shopify's platform and be able to troubleshoot any issues that may arise during the publication process. Please detail your experience with Shopify and similar e-commerce projects.