Nov 13 (Reuters) -

Elon Musk's X Corp has tapped former Tubi executive Mahmoud

Reza Banki as chief financial officer, in one of the social

media platform's biggest hires as its billionaire owner shifts

focus to a role aimed at making the government more efficient.

Banki has joined X in November, according to his

LinkedIn profile. He was the finance chief at streaming platform

Tubi where he worked for six years from 2017.

Banki did not immediately respond to a Reuters request

for comment.

X has been trying to attract advertisers amid growing

competition for ad dollars from social media firms including

Facebook-parent Meta Platforms ( META ).

U.S. President-elect Donald Trump on Tuesday named

Musk and former Republican

presidential candidate Vivek Ramaswamy as co-lead, a newly

created Department of Government Efficiency.

Last year, Musk hired former NBCUniversal advertising chief

Linda Yaccarino as the social media company's new CEO.

The Wall Street Journal first reported Banki's appointment

on Wednesday.