Early in his career, Miller served in the Department of Justice as an Attorney-Advisor in the Office of Legal Counsel (2003–2004) and as a member of the Appellate Staff in the Civil Division (2001–2003, 2004–2006).[1] Miller also served as Deputy General Counsel of the Federal Communications Commission (2006–2007) and spent five years (2007–2012) as an Assistant to the Solicitor General in the Office of the Solicitor General within the Department of Justice.[6][3] He received the Attorney General's Distinguished Service Award in 2008 for his work on national security litigation.[3]