Senior Judge, United States District Court, Middle District of Pennsylvania, 2022-present

Chair, Magistrate Judge Merit Selection Panel, United States District Court for the Middle District of Pennsylvania, 1991

Judge, United States District Court, Middle District of Pennsylvania, 2011-2022

Attorney and Sole Shareholder, Robert D. Mariani, P.C., 1993-2011

Nominated by President Barack Obama, Judge, United States District Court for the Middle District of Pennsylvania, January 5, 2011

Confirmed by the United States Senate, Judge, United States District Court, Middle District of Pennsylvania, October 19, 2011

Partner, Mariani & Greco, 1979-1993

Solicitor, Scranton [Pennsylvania] Sewer Authority, 1978-1980

Associate, Dunn & Byrne, 1976-1979

Member, American Bar Association

Member, Pennsylvania Bar Association

Member, Third Circuit Bar Association

Member, Board of Directors, Lackawanna County Bar Association, 1991-1995

Director, Scranton School Board of Directors, 1977-1981

President, Scranton School Board of Directors, 1980