E-commerce Website Redesign - Moving from Square to Custom Solution

I'm seeking a skilled web developer to redesign my e-commerce website, moving away from Square to a more sustainable, custom-built solution. The new site should be more refined than my current one, taking inspiration from the design and functionality of grass-fields.co.uk.

Key Requirements:
- Clean, modern design: This is my top priority. I need a website that looks sleek and professional.
- Mobile responsiveness: The site must work seamlessly on all devices.
- Easy-to-use product catalog: The product catalog should be easy to navigate.
- Smooth checkout process: The checkout process needs to be intuitive and hassle-free.
- Payment gateway integration: The site should integrate with PayPal, Stripe, Square, Afterpay, and Klarna.
- Inventory and order management: I need the ability to manage inventory and orders directly from the site.
- SEO-friendly structure: The website needs to be built with SEO in mind.

Ideal Skills and Experience:
- Web development and design
- E-commerce platform expertise
- Familiarity with SEO best practices
- Experience with payment gateway integration
- Knowledge of inventory and order management systems

Please review my current site at www.dijahbrand.com to get a sense of the project scope. I look forward to your proposals.