Alexander Grigoriev was born on July 12, 1954 in Angarsk, Irkutsk region.
In 1978 he graduated from the Leningrad Polytechnic Institute (specialty Aerodynamics and Thermodynamics).
In 1981 Grigoriev defended his thesis for the degree of candidate of technical sciences in specialty 05.04.06. Thesis: Investigation of gas flow in a reciprocating compressor stage.
From 1981 to 1983 he worked as an engineer of Research Faculty Compressor included in the software Compressor in Leningrad.
From 1983 to 1998 Grigoriev worked as an assistant and then associate professor of Theoretical Mechanics Department of St. Petersburg Mining Institute in Monchegorsk, Murmansk region.
In 1999 he was elected as a lecturer and since 2006 — the Head of Theoretical Mechanics Department.
In 2005 he defended thesis for the degree of PhD in the fields 04/05/06 and 04/05/03 Thesis: Analysis and prediction of working processes parameters in reciprocating compressors and expansion machines. Grigoriev is the author of 47 scientific papers.