Atınç Nukan began 2004 at Kücükçekmecespor playing football. After two successful seasons Beşiktaş Istanbul became aware of him and signed him in 2006. During the 2007 /08 season he began in the U -15 team to play. In the 2008 /09 season he played with the U-18 in the Youth Süper Lig. At the end of the season he was promoted to the second team. On 22 April 2010 he was summoned by Mustafa Denizli in the first team and signed a professional contract. Two days later he was sitting against Sivasspor on the bench. On 7 May 2010 in the game against Manisaspor he came, due to the serious injury of Ridvan Simsek to its first use. Due to the good performance on 3 March 2010 at the Cup match against Gaziantep BB he brought, you could read his name in many newspapers. Then he found more often a place in the squad. At the 33rd match day against Eskişehirspor, and the 34th game, against Gaziantepspor, he was from the beginning on the court.