Trump named Shine to be assistant to the president and deputy chief of staff for communications, a job that has been vacant since Hope Hicks, the president's campaign confidante, left in February, the White House said in a statement.
The staff announcement is the latest shakeup in Trump's communications office. Shine has consistently denied wrongdoing.
Shine resigned soon after, although he was never directly accused of sexual harassment. And he was seen at the White House earlier this week.
He's a close friend of Fox personality Sean Hannity, a strong promoter of Trump. "Competent, hard working and a believer in making America great again!"
Shine's imminent hiring was reported last week.
Coincidentally, today was also the first day on the job for Bill Shine, who joined the West Wing as a Deputy Chief of Staff.
The communications arm is now in Supreme Court nominee mode, with White House Press Secretary Sarah Huckabee Sanders saying last week that Raj Shah is taking leave from his role as Principal Deputy Press Secretary to work on the SCOTUS nomination full time.
Mr. Shine is expected to travel with the president Thursday aboard Air Force One to a rally in Montana for Republican Senate candidate Matt Rosendale.