Haque began his teaching career at Jamia Rahmania in 1993. While serving as a teacher, he also completed advanced studies in
Islamic jurisprudence at the same institution, earning his
Mufti certification. In 2000, his father founded Jamia Haqiqia, where Haque was appointed director. He later returned to Jamia Rahmania, becoming assistant director in 2001 and principal in 2002. In 2005, Haque was elected joint secretary general of
Befaqul Madarisil Arabia Bangladesh, the country's largest
Qawmi madrasa education board. On 3 October 2020, he was elected Secretary General of Befaqul Madarisil Arabia Bangladesh through a vote held by the organization's central executive council, receiving 73 votes compared to 40 for his closest contender. In accordance with the organization's rules prohibiting political office holders from serving in executive positions, he resigned from his role as Secretary General of the Bangladesh Khelafat Majlis on 10 October 2020. His brother, Mamunul Haque, succeeded him in that position. He serves as a member of the standing committee of
Al-Haiatul Ulya Lil-Jamiatil Qawmia Bangladesh and was reappointed to this position on 7 October 2023 after completing a full term. He is the president of Ittefaqul Madarisil Qawmia Muhammadpur, a regional board overseeing approximately 40 madrasas. Additionally, he acts as the supervisor of
Rahmani Paigam, a monthly publication by Jamia Rahmania. On 15 November 2020, he was elected vice-president of
Hefazat-e-Islam Bangladesh and retained the position following a committee reshuffle on 31 August 2023. He was appointed a governor of the
Islamic Foundation Bangladesh on 18 November 2024 and named chairman of the Shariah Supervisory Committee of
Social Islami Bank on 14 November 2024. == See also ==