Copenhagen against Brøndby IF in one of the New Firm matches, he was considered a new star and a start of a new era for the club, which for many years had suffered from a lack of goals from the strikers.

He made his debut on 5 August 2010 against FK Jablonec in the UEFA Europa League 3rd qualifying round.

He scored his first goal with APOEL on 26 August 2010 against Getafe CF on the UEFA Europa League play-off round, in a match which ended 1–1 after extra time.

He played in all championship matches and scored 7 goals, helping his new club to win the 2010–11 Cypriot First Division.

In the first group stage match against Zenit Saint Petersburg on 13 September 2011, he scored the winner 75 minutes in as his side came from behind to claim a 2–1 victory.

[6] He followed up on that success by scoring from the spot in his side's 2–1 victory over FC Porto in the reverse encounter in Nicosia[7] He also appeared in the round-of-16 triumph over Olympique Lyonnais where he converted his attempt in the penalty shootout.

[8] In total, he scored three goals in the group phase and seven overall in the competition, as the club reached the quarter-finals for the first time ever.

Ailton was given Shirt #9 in the league and domestic cups and #99 in the AFC Hilal Winning - Saudi Super Cup 2015 Win Ailton scored 1 Goal in a Saudi Professional League's game against Al Wahda Club Club.

Ailton scored 1 goal in a Saudi Professional League's game against Al Fateh Club.

[17] In the second leg Hilal drew with Lakhwia FC 2-2[18] On 28 January 2019, Aílton returned to Örgryte IS, competing in Superettan, signing a three-year contract.