Marissa Mayer is an American technology executive known for her work in the tech industry. She was one of the first female engineers at Google, where she played a key role in developing products like Google Search and Gmail. Mayer served as the company's Vice President of Search Products and User Experience before taking on a leadership role at Yahoo. In 2012, Mayer became the CEO of Yahoo, where she aimed to revitalize the company during a challenging period. Under her leadership, Yahoo focused on mobile and content, but the company faced ongoing struggles. Mayer stepped down in 2017 after Verizon acquired Yahoo.