Şık graduated from the Journalism department of Istanbul University, Faculty for Communication. Between 1991 and 2007, Şık worked for several newspapers such as Cumhuriyet, Radikal, Evrensel, and Yeni Yüzyıl. He has also worked at Nokta magazine and Reuters News Agency as a photo journalist.
Ahmet Şik ku her dem bi helwesta xwe ya muxalif hatiye naskirin di sala 2011an de ji ber pirtûka ‘Kontrgerilla ve Ergenekon’ ku bi Ertugrul Mavioglu ve nivîsîbû hatin dadkirin. Di doza ku derbarê wan de 3 sal ceza dihat xwestin de beraet bûn.