CheckiO is an online game for coders to compete and collaborate. For experienced developers CheckiO is a fun competition and a way to share their knowledge.For novice coders is a self tutoring community where code review and feedback are game elements. For IT companies it’s a tool to find and prescreen coders or crowd source software on a challenge basis. Read more.

Alexander Lyabah, Founder linin

Liza Avramenko, Co-founder & CEO linin