Mr. Valentovič began his professional career in 2005 as a product manager at a personnel agency. His career trajectory led him to serve as the Director of the Office of Labour, Social Affairs and Family in Piešťany. From 2008 to 2011, he held the roles of Vice-President of the European Social Fund Section and Vice-President of the Economics Section at the Central Office of Labour, Social Affairs, and the Family.

From 2012 to 2021, he served as the Director-General of the Central Office of Labour, Social Affairs and Family, a position that further solidified his leadership and expertise in the field.

In the years that followed, between 2022 and 2023, he contributed his knowledge as an expert to several organizations. He advised the Association of Employers’ Associations of the Slovak Republic and served as an expert for lifelong learning within the Implementation Agency at the Ministry of Labour, Social Affairs and Family of the Slovak Republic. Additionally, he worked as an expert for the Association of Industrial Unions and Transport, as well as in the area of regional labour market development at the Ministry of Investment, Regional Development and Informatisation of the Slovak Republic. He also offered his analytical expertise in the field of management and organization of work at the Central Office of Labour, Social Affairs and Family.