He worked as a professor at the Faculty of Economics at the University of Madagascar (Democratic Republic of Madagascar), where he prepared two Candidates of sciences, published 7 textbooks in French.
He has lectured at Sorbonne.
In 1969, he graduated from the Dagestan University with a diploma of engineer-technologist. In 1984, he graduated with honours from Leningrad University (economic faculty, specialisation “Political economy”).
In 1977, he won his degree for Candidate of Economic Sciences at the Institute of Economics of the USSR Academy of Sciences for his thesis “Merging as a Form of Concentrating Production”.
Since 1977, Mr. Seifullayev has been with the Russian Geological Exploration University where he was promoted from senior instructor to professor and head of the section of economic theory.
In 1990, he began research and tutorial activity at the G. V. Plekhanov Institute of the Russian Academy of Economics and also provided advisory services to various banks and investment companies.
Since 2005, he has been engaged in research and tutorial work at the Higher School of Finance and Management with lectures and practical sessions in microeconomics and macroeconomics.
He is supervisor of studies for master’s degrees, graduation diploma works and projects by the students of the School.
He is the author of 40 publications and prepared for publication a textbook for the course “Fundamentals of macroeconomics.”
Social problems in the post-crisis Russia (article). Acta Moraviae (Scientific journal for economics, management and informatics), No. 3- 2011. The Czech Polytechnic Institute
Inflation demand and inflation of costs: an international aspect. International scientific conference "Problems of the theory and practice of development of national economy in conditions of global innovative transformation" (Collection of articles). M
Rent as the tax component of the Russian Federation. Abstracts from the report at the international conference "New Ideas in Earth Sciences". Moscow, MGRI- RGGRU 2011
Fundamentals of the Economic Theory. Study aid. M: Russian Geological Exploration University. M: 2007
The Mechanism of Taxation in the Oil Industry. Abstracts. M: 2007
Regulation of State Processes in Investments into the Oil Industry of Russia. Abstracts. M: 2007
Oil Pricing in the World Market (article). Journal “Geology and Exploration”, No. 4, 2006
World Oil Market: its State and Development Prospects. Selected papers of the international conference. M: 2005
History of Economic Sciences. Study aid. Russian Geological-Prospecting University, Russian Academy of Economics, 2005
On the Matter of Utilising Circulating Capital by Transneft on the Basis of its Reports. Abstracts at the conference “New Ideas in the Science of the Earth”, M: 2005
Principles of Market Economy. Study aid. M: Russian Academy of Economics, 2004
Ratios and their Importance in the Analysis of Real Estate Costs. Abstract. M: 2003
Specific Features in the Study of the State of Affairs in the Mineral Raw Materials Market. Collection of abstracts. M: 2001