Sometimes !
If you are in the right place, right time and your face fits then yes.
Generally at the moment i think not.
There are low time guys on here with IRs who don't have a lot of work. And yet one regular (sub 500 hr) PPruner and personal friend of mine has landed a very nice role recently on the basis of his newly acquired IR (he knows who he is, and I'll say no more).
It normally cannot hurt you professionally to hold the rating, it just hurts in the pocket.
And no I am not a job hander outer sorry!
All seems to be changing on the North Sea, so that may open or close some doors who knows ?
That said some jobs being advertised requiring IRs in the usual mags lately.
V.