 As of December 2018, Gennady is the highest-rated programmer at CodeChef, Topcoder.,  and HackerRank;

Korotkevich was born in Gomel (Homiel), southeastern Belarus.His parents, Vladimir and Lyudmila Korotkevich, are programmers in the mathematics department at Francysk Skaryna Homiel State University.At age 6, he became interested in his parents' work.