Alexey Krivitsky has been a developer, scrum master, conference producer, and speaker. He is a Certified Scrum Trainer (CST), Certified Enterprise Coach (CEC) and works as an organization agility coach.
He has been using Scrum since 2005, he is probably the first Scrum Master of Ukraine. Since 2008, he has been actively appearing in the arena of the Agile community as a conference producer and speaker.
He is the author of one of the most popular Scrum educational simulation games: lego4scrum.
Roland Flemm (PST) became a Scrum Master in 2009 closing his 20-year career as a developer and infrastructure specialist. Roland grew into international agile consulting with a focus on large scaled Scrum adoptions since 2015. He has been actively appearing in the Agile community as a conference speaker.
Roland Flemm is the creator of the Koos Coach agile comic series and created the "Elements of Scrum" Scrumcards a Scrum learning tool.