She participated in numerous masterclasses and was able to learn from many renowned cellists, among them David Geringas, Steven Isserlis, Wolfgang Boetticher, Natalia Shakovskaya, Ralph Kirschbaum, Boris Baraz, and Tabea Zimmermann.

She has performed with the Junge Sinfonie Berlin under the direction of conductors Kent Nagano, Theodor Guschlbauer, Arie van Beek, Darrell Ang, Fayçal Karoui, Mathieu Herzog, Jean-Christophe Ferreaux, Pavel Baleff, Kriistina Poska, Debora Waldman, Giedre Slekyte, Charles Olivieri-Munroe, Antoine Marguier, Rastislav Stur, and Aziz Shokhakimov.

She was selected by the Musiq'3 – RTBF radio station to represent Belgium at the European Broadcasting Union competition, where she was awarded first place and declared "New Talent of the Year".

Her first recording with them was released in October 2017, consisting of works by Saint-Saëns and Offenbach, performed with the Orchestre national de Lille under conductor Alexandre Bloch.

In 2011, Thomas appeared in the film Un baiser papillon, taking on the role of a cellist and performing Vivaldi concerti accompanied by the Orchestre des Solistes Français.

[8] Since 24 September 2019, she has played the De Munck-Feuermann, a 1730 Stradivarius cello, loaned by the Nippon Music Foundation for a period of one year.