Shopify CRO for Higher Conversions

I want to lift my store’s conversion rate by refining three key touchpoints—product pages, the checkout flow, and the homepage. I’m looking for someone who can: I have also some points which need fixing... (Budget: $250 - $750 USD, Jobs: A/B Testing, Analytics, Conversion Rate Optimization, HTML, JavaScript, Shopify, Shopify Development, Shopify Templates, Web Design, Web Development)