Born in Venosa, Basilicata, Marolda started his career at Italian regional/non-professional teams.
After a high goalscoring record from 2001 to 2007 in Eccellenza Basilicata and Serie D, Marolda joined his first fully professional team, Teramo, in 2007, and scored 13 goals in Serie C2.
In the next season, he joined Taranto[1] but only scored once in Lega Pro Prima Divisione.
[4] After announcing his retirement as a player, he joined Fabrizio Castori as a match analyst at the serie B side Cesena.
In 2018, he joined SSC Bari as assistant manager.