Sergei Bistrov was born in Umba, and joined the Army after completing his education. In 1996, Sergei started working at the Umba Lodge for Loop Tackle Design as a diesel engineer, then moved into a guide role. He worked at Umba Lodge as a guide until 2003. From 2003-2005 Sergei worked for an enterprise called Silver of Ponoi, then took a guide position in Ryabaga in 2005. He has worked on the Ponoi ever since, both as a guide and more recently on the Mechanic Team. Sergei has three children and five grandchildren, and he enjoys engineering, mechanics, fishing, and construction. Though he is a full-time Mechanic, he still guides a bit on Ponoi.