After his commercial apprenticeship Martin Marxer received a Bachelor's degree in Business Administration at the HTW Chur (now the University of Applied Sciences Graubünden) with a specialisation in Banking & Finance. Afterwards he worked from 2016 to 2022 for a Liechtenstein service company specialising in cash-in-transit/value logistics in the areas of project management, organisation and personnel management.
Since February 2022 Martin Marxer has been working for BDO (Liechtenstein) AG as a Compliance Officer in the financial sector.