Vermeulen collaborated with Sir Colin Davis, Riccardo Chailly, Gennady Rozhdestvensky, and Jaap van Zweden during his early career as an assistant conductor for various orchestras and recording projects. He has appeared as guest conductor with the Royal Flemish Philharmonic, The Hague Philharmonic, Atlantic Orchestra, Netherlands Philharmonic, North Netherlands Philharmonic, Netherlands Symphony, and the Bohuslav Martinu Philharmonic Orchestra.
From 2011 to 2013, Vermeulen served as Director of Artistic Planning for the Dallas Symphony Orchestra, utilizing his performing and conducting experiences, his vast knowledge of classical music repertoire, and his wide network with the most accomplished conductors and musicians around the world. Vermeulen is an accomplished pianist. He has appeared as a soloist with the Royal Concertgebouw Chamber Orchestra, The Hague Philharmonic, The East‐Netherlands Symphony, and The Triebensee Ensemble, given solo recitals throughout Holland, Germany, England, Scotland, France, the Middle East, Japan, and North and Central Americas.
Vermeulen was a student of Willem Brons at the Sweelinck Conservatory in Amsterdam, where he received Bachelors and Masters degrees in piano performance and music pedagogy. He continued his study with the renowned piano pedagogue, Guido Agosti at the Accademia Chigiana, Siena, Italy.