Willemijn de Koning launched an investigative podcast series with NOS, exploring the impact of technology on privacy. The series was acclaimed for its thorough research and engaging storytelling, highlighting her versatility as a journalist.

In 2021, Willemijn de Koning moderated a high-profile national debate on climate policy, bringing together experts, policymakers, and activists. Her role as a moderator was praised for facilitating a balanced and informative discussion on this critical issue.

Willemijn de Koning was appointed as a foreign correspondent for NOS in Brussels, Belgium. In this role, she covered European Union affairs, providing in-depth analysis and reporting on significant developments within the EU.

Willemijn de Koning published her first book, which delves into the intricacies of Dutch politics. The book was well-received for its insightful analysis and thorough research, further establishing her as an authority on political journalism.

Willemijn de Koning received the prestigious De Tegel award for her outstanding work in investigative journalism. This accolade recognized her dedication to uncovering the truth and her ability to present complex information in an accessible manner.

In 2015, Willemijn de Koning was part of the NOS team that reported on a major political scandal involving high-ranking officials. Her investigative work contributed to a series of reports that brought critical issues to the public's attention, showcasing her skills in uncovering complex stories.

Willemijn de Koning joined NOS, one of the leading news organizations in the Netherlands, as a reporter. Her role at NOS allowed her to cover significant national news stories, establishing her reputation as a reliable and insightful journalist.

Willemijn de Koning began her journalism career at RTV Rijnmond, where she honed her skills in local news reporting. During her time there, she covered a variety of stories that helped her develop a strong foundation in journalism.