Al-Saddiq has been publishing poetry since he was 15 when his poem The Wind was published in the literary journal Al-Shawa. Al-Saddiq was awarded first prize in a major poetry competition for young poets in 1986, and in the same year he became the youngest member of the Sudanese Writers Union. Al-Saddiq has worked as a journalist for many Sudanese newspapers, such as Alhoria (Freedom), Aladwaa, Al Ayam (The Days), and from 2006 until 2012 he was the cultural editor of Al-Sudani newspaper.