In 2023, Jeroen de Jager moderated a high-profile national debate on climate policy, bringing together politicians, scientists, and activists. His role as moderator was praised for facilitating a balanced and informative discussion, highlighting his skills in handling complex and contentious issues.

During the COVID-19 pandemic, Jeroen de Jager provided extensive coverage of the crisis for NOS. His reports focused on the government's response, public health measures, and the pandemic's impact on Dutch society. His work was crucial in keeping the public informed during a time of uncertainty.

In 2019, Jeroen de Jager published a book focusing on European politics, drawing from his experiences as a correspondent in Brussels. The book offered readers a detailed analysis of the European Union's inner workings and its impact on member states, showcasing his expertise in international affairs.

Jeroen de Jager received the prestigious De Tegel award for his investigative reporting on the tax evasion scandal. This accolade recognized his exceptional ability to uncover complex stories and his dedication to journalistic integrity, further cementing his status as a leading figure in Dutch journalism.

In 2015, Jeroen de Jager led an investigative team at NOS that uncovered a major tax evasion scandal involving several prominent Dutch companies. His work was instrumental in bringing the issue to public attention, showcasing his commitment to investigative journalism and holding powerful entities accountable.

Jeroen de Jager was appointed as a foreign correspondent for NOS in Brussels, Belgium. During his tenure, he covered significant EU developments, providing Dutch audiences with insights into European politics and policy-making. His reports were noted for their clarity and depth.

In 2010, Jeroen de Jager played a key role in NOS's coverage of the Dutch general elections. His in-depth analysis and interviews with key political figures provided viewers with a clear understanding of the electoral process and the implications of the results, enhancing his reputation as a political journalist.

Jeroen de Jager began his career at NOS, one of the leading news organizations in the Netherlands. His early work focused on domestic news, where he quickly established himself as a diligent and insightful reporter, contributing to the organization's reputation for comprehensive news coverage.