In 2021, Esther Roelfzema published a book that explores the intricacies of European politics, drawing from her experiences as a correspondent in Brussels. The book has been praised for its insightful analysis and comprehensive coverage of EU dynamics.

Esther Roelfzema joined Nieuwsuur, a prominent current affairs program in the Netherlands, in 2019. At Nieuwsuur, she has continued her focus on investigative journalism, delving into topics such as climate change, economic inequality, and political corruption.

Esther Roelfzema was awarded the prestigious De Tegel award in 2018 for her investigative reporting on the refugee crisis in Europe. Her series of reports highlighted the human stories behind the crisis and the political challenges faced by European nations.

In 2015, Esther Roelfzema was appointed as a foreign correspondent in Brussels, Belgium. During her tenure, she covered key events within the European Union, including Brexit negotiations and EU summits, providing Dutch audiences with critical insights into European politics.

Esther Roelfzema transitioned to NOS, the Dutch public broadcasting organization, where she expanded her scope to include international news. Her role involved covering major global events and providing Dutch audiences with comprehensive analyses of international affairs.

In 2010, Esther Roelfzema led a groundbreaking investigative series on the housing crisis in the Netherlands. Her work shed light on the systemic issues within the housing market, including corruption and mismanagement, which sparked national debate and policy discussions.

Esther Roelfzema began her career in journalism by joining De Volkskrant, one of the leading newspapers in the Netherlands. Her early work focused on domestic politics and social issues, where she quickly made a name for herself with her incisive reporting and ability to uncover complex stories.