A lot of good employers know this, and put zero weight on certa. Or as tptacek mentioned, possibly even consider it a bad thing. If I see a CV with CEH, I go in with an open mind but aware it's probably going to go poorly. I'd rather see someone who bought a stack of books, wrote some vulnerable code to attack, asked for advice from people; demonstrated they could throw themselves in and make it up as they go along.
As for job prospects, generally certification won't get you into companies that are only looking for talent as opposed to a checklist of certifications (the former is usually where all of the really interesting work is done). So wasting time on a certification that won't help you is putting you behind people that don't waste their time with certifications.
> Certification in a field such as vulnerability research
OSCP is basically tool-based network pen testing with a bit of outdated websec and buffer overflows thrown into the mix. It's not "vulnerability research" in any meaningful sense of the word. They have some other certs (OSCE) that might purport to target that domain, but idk much about them.
> As for job prospects, generally certification won't get you into companies that are only looking for talent as opposed to a checklist of certifications
So apparently OSCP won't get you a job at Matasano - but they're not the only game in town, and a lot of other security shops with less name recognition and lower standards do in fact use the OSCP as a positive signal.
No, it won't be l33t but it will be a job that they can use to transition to those fancy schmancy companies whose founders are HN regulars.
So in that sense, they do care about OSCP.
Here: https://rhinosecuritylabs.com/company/ lists OCSP and CISSP and a bunch of other certs. So I guess they care about that.
Now, how about you name the pentesting firm that does not list any certs.
How about if they just had a job in Vb.net form a year and then worked other languages for five years.
I guess it's a very fine difference.