Shopify Embedded App Developer Needed (Custom Admin Tool)

I'm looking for an experienced Shopify app developer to build a private embedded Shopify app for my business. This is a custom internal tool that will help manage product pricing across thousands of Shopify product variants more efficiently than the standard Shopify admin. The application will focus on bulk pricing management, pricing profiles, and administrative tools designed to simplify large catalog management. Required Experience Please only apply if you have experience with: Shopify Embedded Apps Shopify Admin API Shopify GraphQL API Shopify Polaris Shopify Metafields Bulk data management within Shopify Please include links or screenshots of Shopify apps you've built. Project Overview The application will include features such as: - Multiple pricing profiles - Bulk price management - Product filtering - Bulk updates - Price preview before applying changes - Scheduling capabilities (future enhancement) - Administrative dashboard - Search functionality - Activity logging - CSV import/export - Exception handling for selected products A detailed functional specification will be provided after reviewing portfolios and selecting qualified candidates. Technical Requirements The application should be: - Cleanly architected - Fast - Reliable - Easy to maintain - Scalable to several thousand product variants I'd appreciate recommendations on the best architecture and data storage approach. Please Answer the Following - Have you built Shopify embedded apps before? - Please share examples of Shopify apps you've developed. - How would you architect an application like this? - Would you recommend using Shopify Metafields, your own database, or another solution? Why? - Approximately how long would a project like this take? - What would your estimated budget be for Version 1? - Have you built Shopify bulk editing or administrative tools before? - How would you safely process updates across thousands of variants while respecting Shopify API rate limits? - What technologies would you use? - If you were building this application yourself, what improvements or additional features would you recommend? Intellectual Property This is a custom application being developed specifically for my business. Upon final payment, all custom source code, documentation, UI, and intellectual property created specifically for this project will become my property.