Domatas began his football career in the youth teams of his local side Ergotelis and signed his first professional contract with the club, on 24 May 2012.
[citation needed] In the winter transfer period of the 2013–14 season, Domatas was loaned out to Football League side Asteras Magoula.
His feats with the club did not go unnoticed and after six months, on 13 January 2015 he signed with Football League side Ermionida, after mutually terminating his contract with Ergotelis.
[6] As a free agent after Ergotelis' meltdown, Domatas signed with fellow Football League side Panserraikos,[7] where he stayed until the end of the season.
He eventually went on to play for Olympiacos Volos in the Gamma Ethniki, for the 2016−17 season, making a total of 24 appearances and scoring two goals, before signing with Aiginiakos and returning to the Football League.