Shopify Bug Fixes

I need urgent help to fix several bugs on my Shopify store.

The bugs are affecting both design and functionality, and I need a skilled developer to resolve these issues quickly.

Here are the details:

Design Bugs:
- Homepage layout
- Product pages
- Cart and checkout

Functionality Bugs:
- Add to cart button
- Product filtering

Ideal Skills and Experience:
- Proficient in Shopify development
- Strong understanding of Shopify's design and functionality
- Experience in troubleshooting and fixing bugs
- Attention to detail and ability to work under pressure

Please provide a portfolio showcasing similar projects and an estimated timeline for resolution.