Dennis was born in Leningrad (Now St. Petersburg), Russia. He moved to the US when he was young and grew up in Boston, MA. Dennis attended Northeastern University and spent several years working for a large supply chain management firm in Boston, Chicago and New York, before attending the Tuck School of Business at Dartmouth. After completing his MBA, he worked as a consultant for McKinsey in New York, Moscow, and Kazakhstan before returning to NY to work for an advanced analytics firm.
Dennis has tutored extensively with Cambridge Coaching. He particularly excels at helping students achieve high scores on the GMAT and preparing for case interviews.
In his spare time he is an avid potter, skier, hiker, reader, and supporter of the oxford comma. He has helped students with the GMAT, as well as consulting case interviews.