Google's general counsel is stepping up to a new position at the search giant, leaving a high-profile job opening in his wake.

Kent Walker has been promoted from senior vice-president and general counsel to senior vice-president of global affairs. In the position, according to a CNBC report, he will oversee the company's legal, policy, trust and safety and corporate philanthropy teams.

The announcement comes as Google continues to reckon with several high-profile challenges, including this month's €4.3bn competition fine from the European Commission. Google is appealing the penalty, which was levied against the company for allegedly violating antitrust laws with its Android phone system.

As general counsel, Walker managed Google's global team and advised its board. In his new role, CNBC reports that Walker "will publicly represent the company on a range of broader issues like the future of work, artificial intelligence, and the role of tech companies in society".

Last year, Walker stood alongside counsel for Twitter and Facebook, whose general counsel announced recently that he was leaving the company at the end of the year, during congressional hearings over Russian meddling in the 2016 presidential election. Google was "deeply concerned", Walker said at the time. He also told lawmakers that the company was "founded with the mission of organising the world's information and making it universally accessible and useful".

"The abuse of the tools and platforms we build is antithetical to that mission," he said.

Walker will reportedly head up a team that includes Google's head of policy, Karan Bhatia, its head of trust and safety, Kristie Canagello, and Jacquelline Fuller, who leads the philanthropic Google.org.

Walker served as an assistant US attorney early in his career and prosecuted tech-related crimes in the 1990s. He was eBay deputy general counsel before he joined Google, and has also spent time working at Netscape and AOL. According to CNBC, Google has yet to fill the general counsel position Walker has left behind.

Walker is not the first big-name Silicon Valley general counsel to take a broader and more business-facing role in recent years. His counterpart at Microsoft, Brad Smith, was similarly promoted from general counsel to president and CLO in 2015.