Are atheism and theism equally based on faith?

I am considering the assertion that atheism is a faith-based position just like theism is a faith-based position. I arrived at this, by considering that theists have no proof that God actually exists, their beliefs purely a matter of faith. There maybe strong implicit proof that God exists in their opinion (scriptures, history, etc.), but there is no concrete proof of God's existence. In my view, atheists also suffer from the same problem of providing a proof of their position. Specifically that they cannot prove that God is non-existent. The typical rebuttal I get is that the burden of proof is on the theists. But I view this as a cop out and they hide behind the wall of burden of proof which is just a bias in the debate.