I haven't been offered a raise in my company for more than two years. In part this is because I had taken a job-protected leave, though I did some part time work for my current employer while I was out of the office. Now that I'm back to full time, it's time for me to get a raise.
In the meantime, a friend of mine is trying to get me into his organization. This is a big, public sector, unionized environment and have their payscale public, so I know for a fact my pay here would be higher than anything my current employer can offer. They have jobs available all the time, so my plan is to keep applying for positions I qualify for until someone from there offers me a position. Unfortunately this could be a month from now or a year from now or more, I can't tell.
My question is whether it's ethical for me to apply for positions and potentially GET a position elsewhere right after asking for and potentially receiving a raise at my current job. Would I be ethically obligated to stick around for awhile? In particular because I would need to ASK.