Professor Meijer is head of research and innovation at the Netherlands Cancer Institute (NKI). He is responsible for the innovation of the department's patient care through translational scientific research. At the research institute of the Antoni van Leeuwenhoek he leads the Diagnostic Translational Oncology section and he is group leader of a research group that conducts research into biomarker development for early detection, prognosis and predicting response to therapy in colon cancer. In addition, he is involved in local and (inter) national research infrastructure programs, especially in the field of biobanking and related areas.