Martine was then a member of the Kammerakademie Potsdam for five years, including being elected to the players governing body. Since then she has pursued an active freelance career, performing amongst others as Principal Oboe at the Hamburg State Opera, the Trondheim Symphony Orchestra, the National Oper in Mannheim, the City of Birmingham Symphony Orchestra, in the Mahler Chamber Orchestra, the Orchestra Spira Mirabilis, and the Malaysian Philharmonic Orchestra, as well as over a decade touring and recording with the Stuttgart Chamber Orchestra.
She also performed and recorded as Principal English Horn with WDR Sinfonie Orchester in Cologne, the Rundfunk-Sinfonieorchester-Berlin, the Deutsches Sinfonie Orchester Berlin, the Deutsche Oper Berlin, and with the Qatar Philharmonic Orchestra.
As a soloist Martine has been featured in the Philharmonie Berlin with Sergio Azzolini and Ensemble Oriol, in the Liederhalle Stuttgart with the Stuttgart Chamber Orchestra, with the Royal Oman Symphony Orchestra in the Al Bustan Palace Muscat, as well as at the chamber music festivals of Moritzburg, Lockenhaus, Sion and Zermatt.