Here’s the No. 1 red flag I see in employees [Video]

You’ve probably worked with someone who’s always the loudest in meetings, talks over you and your co-workers, or takes more credit for projects than they deserve.

That’s the exact kind of anti-collaborative person who Sarah Paiji Yoo tries to steer clear from when hiring new employees.

“I like to lead as an open and collaborative leader. And I think that is a must-have for every team member that we bring on,” Paiji Yoo, the CEO and co-founder of eco-friendly cleaning product startup Blueland, tells CNBC Make It.

Anti-collaborative people can make for a particularly frustrating kind of colleague — even if they’re great at their job, on paper — often contributing to low morale, stunted productivity and broken workplace relationships.

“We like to hire people who aren’t coming in and saying, ‘I’m the expert in this and thus, I should be able to make the final call,” says Paiji Yoo, 40. “Folks who understand that a different …