Tarolis started his career in his hometown club BC Gargždai-Bremena, which played in the Lithuanian second-tier National Basketball League (NKL). For the 2013–2014 season, he moved to Žalgiris-2 Kaunas, the reserve team of Žalgiris Kaunas. After averaging 16.0 points, 7.0 rebounds and 1.6 blocks per game, Tarolis received the NKLMost Valuable Player award. In the following year, he joined the senior Žalgiris Kaunas squad. In 18 Lithuanian Basketball League games, he averaged 4.2 points and 2.3 rebounds.
On 9 August 2019, Tarolis signed with U-BT Cluj-Napoca of the Romanian Liga Națională.[4] He averaged 12.4 points per game during the 2019-20 season with Cluj. On July 2, 2020, he re-signed with the team.[5]
On 3 August 2021, Tarolis signed with Afyon Belediye of the Turkish Basketbol Süper Ligi (BSL).[6] Tarolis averaged 10.4 points, 5.0 rebounds, and 1.5 assists per game.