[1] At the age of 15-16, Obersnel enjoyed TV program Kuda idu divlje svinje, as well as comedies of Miodrag Petrović Čkalja and Mija Aleksić.
He also engaged in scientific and research work in the field of medical genetics and ecotoxicology and performed diagnostics in the cytogenetic laboratory.
From 1997 to 2000 he was a member of the executive council of the City of Rijeka and head of the Department of Health and Social Welfare.
In those years, Rijeka significantly expanded the social program which encompasses a large number of different forms of assistance.
[2] In the first round of the mayoral election held on 21 May 2017, he won by a large margin, winning 40.88 per cent of the votes cast, but not winning an absolute majority, so the second round was held on 4 June, in which he won with a large majority of 55.59 per cent of the vote.