Improving the projects' gameplay; Development of game mechanics and economic system for players; Formation of the difficulty curve and the order of entering mechanics; Level design and game balance adjustment; Improving monetization model; Preparing technical specifications for programmers, designers; Game supervising, working with analytics data. Extensive gaming experience (mobile casual games are a must); Good knowledge of the f2p gaming market and the current gaming trends; Experience with Merge-3, Merge-2, Match-3 or other puzzle genres; Experience of working on games targeting a female audience.