[jqueryin]

You can set your CV to private and only searchable by employers. Unless your employer is signed up for SO Careers I don't think you'll have a problem.

Anyways, it can simply be thought of as your personal resume. You don't have to actively be seeking a job to fill out a CV.

[bmj]

I think LinkedIn is viewed in a similar fashion. While it's sole purpose is not job seeking, it's clear that it can be very useful for that.