1992 - 1994 - Ministry of Foreign Affairs of the Republic of Moldova, International Law and Treaties Department, Deputy Head
1995 - 1997 - Embassy of the Republic of Moldova to Romania, Consul
1997 - 1999 - Ministry of Foreign Affairs of the Republic of Moldova, International Law and Treaties Department, Chief
1999 - 2001 - Ministry of Foreign Affairs of the Republic of Moldova, Deputy Minister
2002 - 2005 - Embassy of the Republic of Moldova to Poland, Ambassador
2005 - 2007 - Mission of the Republic of Moldova to European Union, Brussels, Ambassador, Head of the Mission
2007 - 2008 - ASCOM Company, International Cooperation Department, Chief
2009 - 2011 - KOMET Group Company, Iraq, Deputy General Manager
2011 - 2015 - Government of the Republic of Moldova, Deputy Prime Minister
2015 - 2019 - Member of the Parliament of the Republic of Moldova, Deputy Chairman of National Security, Defense and Public Order Committee
2018 - Head of EPP Parliamentary Group
2018 - 2019 - Co-Chair of EU-Moldova Parliamentary Cooperation Committee
2018 – 2019 - Chairman of National Security, Defense and Public Order Committee
2019 – present - Director, Board of Directors, National Energy Regulatory Agency (ANRE)