Schema markup and structured data play a significant role in Technical SEO by providing search engines with context about the content on a webpage. Implementing structured data using markup enhances rich snippets and improves the chances of appearing in featured snippets and knowledge graphs. We implement structured data effectively by identifying opportunities for markup, such as product information, reviews, events, FAQs, and more. This involves adding appropriate markup to HTML using schema vocabulary, aiding search engines in understanding and displaying content more effectively in search results.