In 1951-1963 Senior Research Fellow, Institute of History, Language and Literature BF USSR.
In 1971-87 at the Ufa Oil Institute, where he initiated at the Faculty of Civil Engineering in 1977 and opened a specialty "Architecture".
Kalimullin was a founder of scientific research in the field of urban development in the country, Bashkir folk architecture, planning villages.
He was one of the organizers and the first president of the Union of Architects of the Republic of Bashkortostan, leading the group for about 30 years.
[1] His research interests included urban planning, architecture, history of the region, art.