Ni atẹle PhD rẹ ni Geography ni University of Marburg (Germany), iṣẹ Jan Marco Müller pẹlu awọn ipo ni iṣakoso iwadii ni Ile-iṣẹ Helmholtz fun Iwadi Ayika (UFZ) Ni Leipzig (Germany), Ile-ẹkọ JRC tẹlẹ fun Ayika ati Agbero (IES) ni Ispra (Italy) ati Ile-iṣẹ UK fun Ekoloji & Hydrology (UKCEH) ni Wallingford (UK).
Lẹhin ti o jẹ Oluranlọwọ si Oludari Gbogbogbo ti Ile-iṣẹ Iwadi Iṣọkan ti European Commission JRC ni Brussels (2009-2012), o ṣakoso ọfiisi ti Alakoso Alakoso Imọ-jinlẹ akọkọ si Alakoso Igbimọ European (2012-2015) ati lẹhinna ṣe iranlọwọ. eto soke awọn Commission ká lọwọlọwọ Imọ Advice Mechanism. 2017-2020 o ṣiṣẹ fun International Institute for Applied Systems Analysis (IIASA) ni Vienna (Austria) bi Alakoso fun Imọ-ẹkọ Diplomacy, Ori ti Office Directorate ati Adase Oloye Awọn iṣẹ ṣiṣe.
2020-2022 o ṣe iranṣẹ bi Imọ-jinlẹ akọkọ & Onimọnran Imọ-ẹrọ ti Iṣẹ Iṣẹ Iṣẹ ita ti Ilu Yuroopu (EEAS), ṣaaju ki o darapọ mọ Iwadi DG ati Innovation bi Alakoso fun Diplomacy Imọ ati Awọn ibatan Multilateral, nibiti o ti n ṣe abojuto lọwọlọwọ idagbasoke ti ilana European kan fun diplomacy ti imọ-jinlẹ. .