He debuted as an actor in 2004, at the age of eleven, at the Teatre Nacional de Catalunya.
He made his big screen debut the following year, starring in Paco Plaza’s film Cuento de navidad. That same year, he played one of the kids of the Spanish TV series Abuela de verano.

During the first years of his acting career, Pau worked at the Teatre Lliure and also in TV series such as Plan America, Les veus del Pamano or La Mari. He also appeared in feature films such as Mil Cretins, Eskalofrío and Sing For Darfur. 

He featured in the horror film REC2, from the mythical saga created by Paco Plaza & Jaume Balagueró. 
In 2012, he played a young man called Nelson in Gracia Querejeta’s film “15 años y un día”. 
From 2015 to 2018, he starred in Netflix’s series “Merlí”. He played Ivan Blasco’s role, a guy who suffered agoraphobia, and embodies a great evolution. The series was very successful. It was streamed on TV3 before Netflix acquired it and distributed it internationally.
The following year, he met theater director Sylvianne Fortuny and joined the company "Pour Ainsi Dire", with which he debuted on stage in France with the play "Des chateaux en Espagne". 

In 2018, he participated in several episodes of the second season of the English series "Snatch", where he played the young chef "Fanta". The show was produced by Sony Pictures and directed by Tom Dey and Kevin Conolly. 

During the past years, he has featured in TV series such as "En el corredor de la muerte" (Movistar Plus), in short films such as INSIDIA (ESCAC Films) and in plays such as "Paradise" (Nico & Sunset) or "Lo Nuestro" (Flyhard). 

In 2022 he starred in the short film “Pocos, buenos y seguros”.  This prison drama set in the 70s has already won twelve awards during its tour of international festivals. The film was directed by Gorka Lasaosa and Álex Paya.  
In 2024 he played Tito in the Neil Marshall’s Gangster Movie “Duchess”, an English production by Cork Films.