Good Day,
As an experienced Shopify Developer and Custom App Expert, I have briefly check the requirements you mention in your description. I can develop you fully functional private app using Shopify. Kindly come to chat to discuss more about the project. The project will be done in less than 15 days or less if your requirement are briefly and well explained.
I’m Luqman Ahmed. I am a creative freelancer and Since 2012, I am managing web Development tasks successfully. and I have more than 6 years of Full stack experience and development for different companies in the united kingdom. As a highly skilled Full-Stack Web developer with 6+ years of working experience. I can design/develop, PHP, Angular, Larval, React JS, Woo-commerce, Wix, WordPress, and Shopify sites from scratch, Customization of theme, Custom Plugin, API integration, Maintenance of a site, Revamp of the site, etc.
I am waiting for your response so I can working on your project very soon.
Thank you and regards
Luqman Rg.