tl;dr:Over the past several years, Moroder has helped formalize the rotation program at Checkr, and she’s scored some pretty brag-worthy retention stats as a result. “Two years ago, non-regrettable attrition was zero, and the year after that, it was 2% — because one person left. Across the board, my team is extremely tenured right now,” says Moroder. “For staff engineers and above, about 60% of them have been here six years or longer.