Levadiakos F.C.
On 30 January 2015, before the campaign was over, Simões agreed to a two-year contract with AEK Athens F.C. which was made effective on 1 July. On 19 March 2016, he agreed to an extension until 30 June 2019, with a buy-out clause of €7.5 million. On 10 December of that year, he scored his first goal in a 4–0 home victory over Levadiakos F.C. in the Super League Greece.