E-commerce Site Revamp for Increased Engagement

I'm looking for a freelancer who can overhaul my current website to improve its organization and content. The primary goal is to enhance the usability of the site and to attract more customers.

Key tasks include:
- Updating the site with new photos and information about our company, products, and customer testimonials.
- Optimizing the site for SEO to boost its visibility.
- Troubleshooting and removing all existing errors on the site.
- Enhancing the safety and efficiency of our online store. This includes creating a secure checkout process and integrating product variations for our items.
- Incorporating our Yelp reviews into the site to build trust with potential customers.
- Improving the functionality and layout of our contact form.

The ideal candidate for this project should have substantial experience in web design, e-commerce, and SEO. They should also possess excellent troubleshooting skills to identify and rectify errors on the site. An understanding of site security measures for online shopping is crucial. The freelancer must be able to create an organized, user-friendly site with error-free grammar. Familiarity with integrating social media reviews into a website is a plus.

Please provide a portfolio of previous similar work when bidding.