Developer Needed for Shopify +VWO Testing Coding: Star Rating

We need help with creating changes in an A/B test within VWO (a testing tool we use). Once we test it there for X weeks and assuming we have a winner we'd need help to implement these changes on the live site across all products (this could be a follow up project where I'd create a new project with you) The test was to change the way our star ratings are presented. Currently it shows only on star with the number rating next to it. Right now, it will be shown as one star and then for example a 4.5 would be next to it. We want to change this to show five stars and have them filled out depending on what the star rating is (just like what you'd see on amazon). We're using the rating system [login to view URL] but this looks like its a shopify feature. Also, we want to test this change before implementing this site wide so the coding changes would need to be implemented with our testing tool VWO. We use shopify as a platform so the developer would need to be familiar with how both Shopify and VWO work.