Miccichè has been chairman of Banca IMI since April 2016. He previously was General Manager and member of the Management Board of Intesa Sanpaolo. He served as Head of Corporate and Investment Banking Division of Intesa Sanpaolo from January 2007 to April 2016, and Chief Executive Officer of Banca IMI from October 2007 to March 2015. A university graduate in law, Miccichè earned an MBA with honours from SDA Bocconi in 1984, and was awarded the Master of Masters by the SDA Bocconi - Master Alumni Association in December 2008.

His professional career began in February 1971 at the Cassa Centrale di Risparmio delle Province Siciliane, where he became Head of Corporate Clients. In April 1989, he joined Rodriquez S.p.A. as Chief Financial Officer. In November 1992, he took the position of General Manager of Gerolimich - Unione Manifatture, and later served as the company's Liquidating Administrator. In January 1996, he was appointed General Manager of Santa Valeria S.p.A., and in October 1997, he became Managing Director and General Manager of Olcese