 On September 4, 2015, Seibutis signed a one-year contract (with an option for another) with the Lithuanian club Žalgiris Kaunas.On July 21, 2017, Seibutis signed with Neptūnas Klaipėda for the 2017–18 season.On July 17, 2018, Seibutis signed a two-year deal with Zaragoza of the Liga ACB.