Air Commodore Madelein M.C. Spit started her military career as an Air Force cadet at the Netherlands Royal Military Academy where she graduated in Aerospace Engineering in 1984. After her graduation, she had assignments in the field of Aircraft Maintenance and Engineering, weapon systems maintenance and engineering, and contributed to several acquisition projects. Her first command function was commanding officer of the Electronics and Avionics Division. Following, she was assigned to the Netherlands Ministry of Defence where she worked as policy adviser and staff officer. Thereafter she switched over to the area of Air and Missile Defence, where she held the position of Branch Head of Air Defence Systems, Weapons and Weapon Technology Branch. In the field of project and programme management, she was assigned to the post of the Netherlands Representative in the F-35 Program Office in Washington. After promotion to Air Commodore in 2007 she held the post of Director of Joint Air Systems in the MOD Armaments Directorate. She received her second command when she was appointed Commander of the Division for Infrastructure and Security. Since August 2014 Air Commodore Madelein Spit is the Assistant Director of the JAPCC.