Starting his career in his homeland with Siauliai, the Lithuania international made 40 league appearances before a switch to Romanian top-flight side Unirea Urziceni in 2008.
In 2008/09 Arlauskis helped the club win the championship, was voted the league’s goalkeeper of the season, and was also voted into the Team of the Year.
In 2010 he moved to Russian top-flight side Rubin Kazan but failed to establish himself in the first team and in June 2014 he moved to Steaua Bucharest and won the league and cup ‘double’ in his one season back in Romania.
He was named the Lithuanian Player of the Year and his form earned a move to Watford, where he made his Premier League debut against Aston Villa in November 2015.
In January 2016 he joined his former Steaua boss, Constantin Galca, on loan at Spanish club Espanyol before a permanent switch to Cluj in August 2017.
Arlauskis made his debut for Lithuania in August 2008 and went on to make 23 appearances until 2015.