I'm not sure what the question is (I'm not being snarky - I'm really not sure.) If you've had it done before, you're probably not asking about aftercare or jewelry recommendations. Do you mean in terms of job stuff?
I have my nostril pierced and it hasn't been an issue at all. I'm doing a summer fellowship in DC and no one has batted an eyelash. I didn't apply for any SA positions, but I've spoken to several SAs with nostril piercings since I've been in DC. They all said that no one has cared and they've worn the jewelry on the job, but I think that they all recommended taking it out for interviews.