Kathy Savitt

Marissa Mayer's makeover of Yahoo continued today with the hiring of Kathy Savitt as its new chief marketing officer.

Savitt most recently served as the CEO of Lockerz, a photo-sharing site with 45 million unique visitors. Before founding Lockerz in 2009, Savitt served as the CMO for American Eagle Outfitters and VP of strategic communications, content, and initiatives at Amazon.

Savitt is the most senior job vacancy filled by Mayer, who was recruited from Web giant Google to be Yahoo's CEO in July. Most of her high-profile hires have been poached from her former employer: former Google product marketing manager Andrew Schulte was hired earlier this month to be her new chief of staff, while Anne Espiritu, who ran consumer technology PR for Google, was brought on to handle corporate communications.

"We are very excited to welcome Kathy to Yahoo," Mayer said in a statement. "Her extensive experience in building and refining well-loved consumer brands like Amazon, American Eagle Outfitters, and Lockerz will be incredibly valuable as we define Yahoo's future."

Mayer's executive search is not yet complete, though; she is also reportedly in the market for a chief operating officer to free her up to handle product decisions.