[7] Mia served as the superintendent of police in Sunamganj, Pabna, Tangail, Chittagong and Saidpur.

[10] During the Holey Artisan Attack, as the DMP Commissioner, Asaduzzaman Mia, and several officers struck inside and opened fire on the militants in an attempt to rescue civilians from the site.

Prime Minister Sheikh Hasina was briefed by the Commissioner and she instructed him to move away with his men and informed him the Army Chief Belal Shafiul Huq was on his way from Sylhet.

[11] During his tenure as the DMP Commissioner, arrests without warrants was brought down by 99%, general diary (GD) format was introduced in every police station, an e-traffic prosecution system was introduced and information of Dhaka residents was stored on a digital database to reduce crimes.

This soon became a driving force in eradicating major terror hideouts dens in the capital and decreased theft, robbery and extortion.

In 2016, Mia was elected president of the committee while Harun Ur Rashid, then SP of Gazipur, was made general secretary.

[23] He was made the Chief Executive Officer of the newly formed National Security Affairs Cell on 14 September 2019.

[24] In June 2024, media reports Mia and his family own several plots, apartments and lands in Dhaka.