Facebook on Tuesday announced it hired Kevin Martin, former chairman of the Federal Communications Commission, as vice president for mobile and global access policy, as the social network continues to build its executive ranks with former government officials.

Martin, a Republican who led the FCC between 2005 and 2009, will oversee the company's initiatives on wireless and other broadband Internet policies. He has been a consultant for Facebook for the past two years.

The company also announced the promotion of chief privacy officer, Erin Egan, to vice president of U.S. public policy and the head of Facebook's growing Washington D.C. office. She has led the creation of Facebook's privacy policy, which has evolved over the years. She will lead the company's team of federal and state lobbying and policy staffers.

The Silicon Valley firm has in recent years has quickly ramped up its lobbying operations, hiring key Democratic and Republican political aids and regulators. In 2011, Facebook hired former George W. Bush aide Joe Kaplan to head global policy. Chief Operating Officer Sheryl Sandberg began her career as an aide to former Treasury Secretary Lawrence Summers. Instagram Chief Operating Officer Marne Levine was chief of staff to Summers during his tenure leading Obama's National Economic Council.

The hiring of Martin comes as  Facebook tries to expand Internet access across the globe through its initiative Internet.org.

“Kevin's deep experience in technology and communications policy, along with his creativity and strategic vision have already proven invaluable to our mission to connect the world and we are thrilled he is joining the Facebook team full-time,” said Joel Kaplan, Vice President of Global Public Policy.

Before joining the FCC, Martin served as a special assistant on economic policy for George W. Bush.