Sander Teepen started as a hoboist, playing for several professional symphonic orchestras in the Netherlands. Soon, however, Sander was captivated by conducting. He took conducting lessons with Jan Stulen, Otto Tausk, and Jac van Steen and followed masterclasses with Jorma Panula and Neeme Järvi. He has won prizes at several conducting competitions, including in 2013 and 2015 at the Blue Danube International Opera Conducting Competition in Vienna, and the 2014 George Enescu Prize at the Jeunesses Musicales in Bucharest. He has worked as a guest conductor with various orchestras, including the Timisoara Banatul Philharmonic Orchestra in Romania, the Philharmonic Orchestra & Choir of Moldova, and with the Residentie Orkest, Het Gelders Orkest, and the Rotterdam Philharmonic Orchestra in the Netherlands. Sander Teepen is also active as an opera conductor. He led productions for the opera companies of Ostrava and Stara Zagora and he was an assistant in a production of Wagner's Der fliegende Holländer of the Nederlandse Reisopera. In 2018 he received the Kersjes Fund conductor grant.