A search engine optimization expert, or SEO expert, improves a business or organizations website content so it is viewed more favorably by a search engine, such as Google or Yahoo. It is their job to make a website appear as quickly as possible in search results, to increase that website’s foot traffic and engagement. Their duties may include analyzing and using keywords or building natural backlinks. This is a search engine marketing (SEM) job, and keeping up with current SEO practices is necessary for this career.