01)

 Assistant Professor, Department of Botany, Jagannath University, Dhaka 1100, Bangladesh (January, 2018 to January 2023)

02)

 Lecturer, Department of Botany, Jagannath University, Dhaka 1100, Bangladresh (October, 2015 to January, 2018)

03)

04)

 Research Assistant, Encyclopedia of Flora and Fauna of Bangladesh Project, Asiatic Society of Bangladesh, Dhaka-1000 (December 2006 to December 2009).

• Contributor:  Encyclopedia of Flora and Fauna of Bangladesh, Vols. 6-12 (2006-2009). Asiatic Society of Bangladesh. Contributed the detailed species profile of 15 plant species under 5 angiosperm families in the Encyclopedia of Flora and Fauna of Bangladesh.

• Translator (English to Bengali): Encyclopedia of Flora and Fauna of Bangladesh, Volume-10.

• Executive Committee Member, Bangladesh Association of Plant Taxonomists (2018-2020).