Alex, as a developer, has worked with Shopify (including Shopify Plus) for 9 years. During this period, he has developed themes from scratch, made modifications (upgrades) to existing themes (such as Debut and others), developed various landing pages, and performed page-speed optimization. He also has experience with localization, B2B, and has collaborated with the marketing team to improve search engine optimization (using schema, Google Tag Manager, etc.). Additionally, he has experience with app integration and has developed custom private apps.