Question: I applied for a job and during the various stages of the job interview the hiring person told me that they will get back to me in a certain amount of time. However, after every round of the interview the hiring person overstepped that limit. One week turned into two, two weeks turned into five. **And this happened after every single interview round.**

Even though the job sounds interesting and is with a reputable company, I wonder how they will treat me on the actual job if if they overstep their maximum allotted time to respond to me after every single interview round.

The position I'm applying for is relatively new in the company, so I think they're taking their time with the job applicants, but still, overstepping the time limit to get back to me on three separate occasions is non-professional to say the least. They also didn't acknowledge the delay.

**Should I consider this kind of behavior a red flag?**

Answer: 
> 
> Would you consider an offer from a company which always took more time
> to get back to you after every single round of the interview?
> 
> 
> 

I would consider an offer from a company no matter how much time it took to get back to me. In the big scheme of things, that time is a sunk cost and isn't relevant to the merit of the job itself. Once hired, I wouldn't be going through the interview process (with any delays) again.

That said, if the delay bothers you enough, you can easily dismiss the offer without even considering it. Since you used the term "non-professional to say the least" you have to decide if what you saw during the interview process extends to all the other processes in the company, or was perhaps an outlier. Think back over the interview - what you heard and what you saw - to help you decide.

For me, I might weigh that bother against all the other aspects of the company/job/offer and make a decision based on the whole.
I would say that unless you apply for a job, the quality of their HR is not that important. Look for red flags with the people you are working with, they are more important. You can get an excellent job in a company with rubbish HR.