Local mobile ad network xAD has announced two new hires, as the company expands its executive team. Babak Dehnad is joining as vice president of global human resources, while Steve McCarthy is the firms new chief financial officer.

McCarthy joins xAD from Private Equity, where he oversaw finance, accounting and operations for all fund portfolio companies. He has previously worked at MySQL, Vitria Technology, Exodus Communications and Centura Software. McCarthy will be responsible for all aspects of finance and accounting at xAD.

Dehnad has worked with several tech start-ups, and has held senior HR positions at Phoenix Technologies, MySQL, Taleo, Zambeel and QRS Corporation. At xAD, Dehnad will be responsible for continuing to expand the team globally, and developing the existing workforce.

“Im very excited about joining such a talented team with such an amazing opportunity,” says McCarthy. “I look forward to being a part of a sector with such impressive growth, and joining a team that has a solid track record of exceeding plan-to-market results.”

The company has also announced that it has doubled the number of ads served in the last four months, having recently served its 2 billionth ad.

“Weve seen impressive growth since our launch, and its exciting to watch the demand for local mobile advertising skyrocket, and be a key part of the market growth,” says xAD CEO, Dipanshu Sharma. “2011 seems to be the year of mobile advertising, and xAD is establishing itself as a leader of this rapidly expanding local market segment.”