You're reviewing a résumé from a candidate whose credentials are endless. They seem so ideal. You want a superstar employee, and yet...this person may not be the best hire for your company.

Before you let their credentials or accolades push you over the edge and in the wrong direction, take a minute and think about if you should be making them an offer or looking elsewhere.

Here are three sneaky red flags to watch out for during the interview process.

1. They have more certifications and degrees than actual work experience.

If you're just going off of what sounds impressive on their résumé, you might be getting what you're seeing: an ideal candidate. But an ideal candidate doesn't always become a superstar employee. In fact, they might actually be the wrong hire if they're not able to take the information they've learned and do something with it.

Ask them for specific examples of when they ran a project or how they actively used their education to solve a problem. Being highly credentialed isn't a bad thing; just make sure that that the candidate is able to offer tangible examples of how they've put those credentials to work.

2. They don't ask a lot of questions.

Does it seem like they think they're too good for the job? Do you feel like you're the one who is putting all the effort in trying to convince them to work for you? Are they not asking questions about the position or the company?

If they're not demonstrating curiosity in the interview, they probably won't be curious on the job. Step and back think about which candidate really wants to understand the role. Who is asking the most thoughtful questions?

The person who looks good on paper isn't always going to impress you when they're sitting down in front of you. Pay close attention to the person who asks insightful questions instead.

3. They can't speak clearly about what challenges and fulfills them.

If they don't know those things, they're probably not aware of who they are or why they do what they do.

Is that the person you want on your team? Really think about it. Can you be sure that they'll be the right fit for the job if they can't even anticipate what about the position would challenge or fulfill them?

The candidate who knows who they are and what they're about is going to tell you exactly that - and that's someone you can count on to truthfully and accurately let you know if they're the right person for the job.

There are many, many qualified candidates out there, but you don't want to hire someone who seems ideal only to find out that they're not a fit. You'll be the one paying for that mistake in the end.