François' parents nurtured his musical talent already in his childhood. During that time, he also discovered his passion for the stage. At the age of nine he was accepted into the children's choir of the Bavarian State Opera in Munich. With them, he was on stage performing as a soloist in LA BOHEME and PIQUE DAME, among other performances. He appeared as a leading actor in the Uli Bree's musical TEDDY – A MUSICAL DREAM.
He had his first part in a theatrical film as 'Kreuzkamm Junior' in THE FLYING CLASSROOM in 2003. Shortly afterward he lent his singing voice to Mowgli in the German version of JUNGLE BOOK 2. Aside form other dubbing assignments, François could be seen in various TV shows. In 2004, production commenced on the shoot of Joseph Vilsmaier's ROCK CRYSTAL, which hit the German film theaters in the winter of 2004/2005. In that film, François played the lead role of 'Konrad'. For his achievement he received the Junior Media award 'White Elephant' at 2005's Munich Film Fest and a nomination for the International Undine Award (together, among others, with Alexandra Maria Lara, Tom Schilling, Mavie Hörbiger, Kostja Ullmann and Robert Stadlober).
In the summer of 2005, François played the lead in the German-French theatrical feature FRENCH FOR BEGINNERS (with co-stars like Christian Tramitz, among others), which was distributed in 2006 by Concorde in Germany. For this film, he was again nominated for an International Undine Award in the fall of 2006.
In 2007, François played 'Jim Hawkins' in the new TV version of the adventure classic TREASURE ISLAND. At his side were, among others, performers like Tobias Moretti, and Jürgen Vogel. Right after that he shot a re-make of the anti-war classic THE BRIDGE with Franka Potente.
In the summer of 2008, François was hired as the protagonist of the film adaptation of SUMMERTIME BLUES; the English young adult novel by Julian Clarke of the same name.
In the fall of 2008, François earned his third nomination for the International Undine Award, this time for his performance in TREASURE ISLAND.
In 2010, François played alongside Liv Lisa Fries in the youth drama SHE DESERVED IT by author and director Thomas Stiller. For his depiction he was awarded the 'Wild and Young Award' as best actor in 2012.
In 2011, François took the leading part in LOST PLACE, a 3-D mystery thriller directed by Thorsten Klein, which hit German theaters in 2013 (NFP/Warner Bros.)
In the film version of the novel BBESSER ALS NIX (directed by Ute Wieland; written by Nina Pourlak) he also can be seen as the protagonist. The German theatrical release was in 2014.
A special TV event in 2014 was the music video "Dream" from Panda-Rapper Cro, which was simultaneously played in heavy rotation by MTV and local music broadcaster VIVA, in which François was playing the two lead characters in a double role.
In 2015, François played the leading role in the award-winning ARD youth mystery series ARMAN'S SECRET, which was successfully continued in 2017.
François has been a member of the German Film Academy since 2011.