In the theatre, he collaborates with Ahmed Salim, assisting him in the co-writing of the show Voyage de l’alchimie à la chimie (From Alchemy to Chemistry), which explores the history of Arab world culture and was performed at UNESCO. The following year, he wrote and performed a solo show, directed by Anne Cangelosi and Alexandre Delimoges, at the Comédie de Paris, in a performance about Belgium. At the same time, he wrote for Revue des Galeries, directed by David Michels and performed at the Théâtre Royal des Galeries. He also contributed texts for the Marius Staquet Center, under the direction of Claudia Bruno, for a show about the roots of refugees. Since 2022, he has written several dance performances for the Final FX school, staged at the Jacques Brel Auditorium and the Théâtre de la Balsamine. He is also the author of the play Mariés sur Tarmac, which was nominated for the 2023 Tournesol Prize at the Avignon Festival.

In film, Jérôme Hauptman works as the lighting double, stunt double, and swimming screen double for Jean Dujardin, and will soon appear in the upcoming film The Incredible Shrinking Man, directed by Jan Kounen. This experience inspired him to write his first short film, Zone Grise (Grey Zone), which won the Audience Award at the 2024 48 Hour Film Project. He also appears in the film The Man Who Sold His Skin, directed by Kaouther Ben Hania and starring Monica Bellucci.

Currently, he is on tour in the play Cobalt, directed by Frédéric Lubansu, as well as in Mariés sur le Tarmac, directed by Anthony Figueiredo. He will soon appear in Portrait of a Desire, the new film by Nina Degraeve, set for release in June 2025.