Otkritie, a provider of high frequency trading solutions in Russia, has appointed two deputy chief executive officers to the group, Fundamentals Magazine reported. Johannes Berner, who previously worked at Roland Berger Strategy Consultants in Moscow, will oversee the group's development strategy and maintain relationships with investors. Alexey Karakhan, former chief executive officer of strategic relationships at Aton Group, will join Otkritie's executive board and oversee HR, marketing, PR, internal communication and corporate services.