Born in Madrid, he worked as illustrator, comic book artist and storyboard designer prior to filmmaking.

[1] Following his involvement in the animated television series Jelly Jamm,[2] he made his feature film debut with Diamond Flash.

[1] He has since directed and written Quién te cantará (2018) and Manticore (2022), as well as penned the script of The Grandmother (2021).

[4][5][6] In January and February 2024, El País published allegations by six women accusing Vermut of sexual abuse from 2012 to 2024.

[7][8] In September 2024, Vermut issued a statement through his legal representative denying ever engaging in non-consensual sexual practice, emphasising that no official investigation had been conducted against him to date, and stating that he was not made aware of the details of the allegations when El País contacted him, and that it misrepresented his response as though he was.