In January 2006, after being rarely used, Aitor joined CD Puertollano in the fourth tier, helping in their promotion at the end of the season. Roughly one year later, he signed for AD Ceuta also in division three.[1]
In 2008, Aitor agreed to a deal with CF Atlético Ciudad still in the third level, before returning to Ceuta in the following year. On 10 August 2010, he signed for CD Roquetas of the same category,[2] before rejoining Ceuta for a third spell the following 23 July.[3]
On 16 July 2012, Aitor moved to UE Sant Andreu also in the third division.[4] He retired in the following year, aged just 28.
Managerial career
Shortly after retiring, Martínez was named manager of Málaga CF's youth sides. He had a short spell in charge of Segunda Andaluza side UD Loreto in 2019, before joining the structure of Real Betis as manager of the Cadete squad.
In 2020, Martínez was named at the helm of the Juvenil squad,[5] before being promoted to the reserves on 24 June 2022.[6] He left the club on 9 June of the following year, as his contract was due to expire and would not be renewed.[7]