shopify expert

I am looking for an expert Shopify professional to help customize my existing store. I have a Shopify account that is already set-up and I need someone with extensive experience customizing the features of the platform. The timeline I am looking at is within the next 2 days, so I need someone who can work quickly but still be highly skilled. Experience with Shopify Theme Configuration, Custom Feature Development, and Troubleshooting are all needed for this project.