Rémi joined the European institutions in 2004, after a career in investment banking that included private and public sector assignments, including financial system reform missions in CIS countries, Asia, North Africa and the Middle East.
He first served as head of operations section at the EU Delegation to Ukraine, dealing in particular with entrepreneurship, economic and financial reform initiatives (2004-2008). As country manager for European Union–Republic of Moldova relations, first at the European Commission (2008-2010), then at the European External Action Service (2011-2014), he coordinated the preparation of the EU–Republic of Moldova Association Agreement, and seconded the EU Special Representative in the Transnistrian settlement process.
In 2014, Rémi joined the European Commission Support Group for Ukraine, before moving to Kyiv in January 2017 to deputise for the Special Representative of the Chairperson-in-Office of the Organization for Security and Cooperation in Europe (OSCE) in Ukraine and in the Trilateral Contact Group.
Since 2021, Rémi has been the Deputy Head of the EU Delegation to Ukraine.