Mohammed Ammash was born to a middle income family in Iraq. He received his bachelor’s degree in mechanical engineering from the University of Baghdad in 1995.
From the date of his graduation until 1997 he worked for the public sector in his field of study, installing and maintaining central air-conditioning systems. For two years from 1997, he worked in the academic field at the University of Baghdad. While working in academia he started working part time in the private sector, firstly in IT and later in power generation. This continued until 2006 when he became commissar responsible for importing and marketing air conditioner units, electric equipment and power generation sets for the local market and the public sector.
In 2006, Mohammed rejoined the public sector, working for the Vice President of Iraq as Chief of Staff. In 2007, he moved to the Iraqi Presidency as the Chief of Staff to the Presidency. Since 2009, he has been a senior counsellor and Chief of Staff. From 2007 to 2009 he studied for his M.A. in Strategic Planning at the National Security College of National Defence.
In 2013, he won a Hubert Humphrey fellowship in the United States of America to study public policy analysis and public administration at the Maxwell School of Syracuse University.