Sanjin has been in the music industry since 1996, starting at Dallas Records.

Head of PR and Marketing for LAA (since 2012) and the Zagreb-based Tvornica kulture (since 2013). In September 2023, he launched the music PR agency Pola, representing acts such as Dubioza Kolektiv, Let3, Buč Kesidi, Joker Out, Brkovi, KOIKOI, IDEM, Nika Turković, and Nela.

A member of the EXIT organisation since 2007, he served as the Head of PR for the entire EXIT organisation and a member of the Board of Directors from 2020 to 2023. He is also the director of Exit’s Sea Star Festival, held in Umag since 2017.

He promotes bands, concerts, and festivals. To date, he has organised around 800 concerts, over twenty festivals, and promoted dozens of performers and albums.