Electro-Technician by profession, René Closter started his working career in 1973 within the professional fire brigade of the City of Luxembourg.

René Closter is inextricably linked to the development of air rescue operations in Luxembourg.He gave his wife's father's house as collateral to start with LAR.

The former firefighter and pilot is today a member of ING's external advisory board and VP of DRF Luftrettung.

In 2015, René Closter was awarded the prize of the Foundation of the Deutsche Bank Luxembourg S.A. for the support of the German-Luxembourgish cooperation in the area of the sciences.

In addition, he was awarded the title of "Officer in the Order of the Crown"[3] by King Albert II of Belgium.