Out of State DUI Background Check

It certainly could show up on an employment background check. However, there are many variables if it actually will, such as what background checking service they use, how extensive the background check is, is it exclusive only to California, etc.… Typically, convictions are easy enough to find. It is best to be honest when applying for a job. If you are asked the question, figure out a good way to spin it into a positive, such as it was a learning experience and I have matured into a better person.

Yes it is quite possible it could show up.

It is likely to show up.