Cesar C.

I migrate and restructure large Shopify catalogs: [50,000]+ SKUs, metafields, variants, Combined Listings; without breaking live listings, SEO, or inventory. Matrixify pipelines, Shopify Flow automation, and the data engineering behind them. Most Shopify freelancers can build you a theme. Far fewer can take a broken 40,000-product export from a legacy platform, reconcile it against what's actually in your store, and load it cleanly on the first pass. That second thing is what I do. Where I'm strongest: Catalog migrations at scale: products, variants, images, customers, order history. Legacy platforms (Miva, WooCommerce, Magento, custom) into Shopify and Shopify Plus. I build the gap analysis before I build the import, so you find out about the 2,000 missing SKUs before launch instead of after. Matrixify pipelines: bulk imports, exports, scheduled syncs, and the transformation logic in between. Including the failure modes most people learn the hard way. Metafields & product data architecture: image metafields, structured specs, Combined Listings, taxonomy cleanup on catalogs where the source data is inconsistent. Shopify Flow automation: inventory rules, pre-order logic, discount stacking, tagging, order routing. Reporting: Shopify reports, advanced Excel, Power BI dashboards so you can see what the catalog is actually doing. Track record: [297] contracts [8,494] hours [$500K]+ earned on Upwork 100% Job Success, Top Rated Plus. Ten years leading a data team at a Shopify agency, running catalog work for US and LatAm brands. Fluent in English and Spanish: I work across US and Latin American teams. If your product data is the thing standing between you and a launch, send me the export and I'll tell you what's wrong with it.