Looking for some perspectives here. I know the standard Ask A Manger advice is "don't try to use a job offer to negotiate a raise at your current job because it will affect your relationship with your manager and take you a target in the future".
I work in science R&D. I started at medium sized American chemical company A, which was taken over by large American chemical company B, which split into some companies and I was moved into Company C. Point of telling you this is that I have been involuntarily moved multiple times. When you get moved a lot, it can affect your career trajectory. Company A paid less than B, and so I was moved into Company B at a lower rank (so that my pay wasn't affected). Additionally, whenever you start a new role, no one cares about your past accomplishments and you have to start fresh every time. As a result of this, I am starting to lag behind my former coworkers (still at Company B) in terms of pay and rank.
I generally like my current work group; I get along with all of my coworkers, am well liked, have a good relationship with my manager, yada yada. I receive high performance ratings, but current manager wont promote me because I don't have enough visibility in Company C yet. I have been in this group for 2.5 years, and it seems like a promotion is maybe a year off. My manager is working with me though; she just recently has given me a new role that will give me more visibility, and may eventually lead to a promotion. There are no definite terms though; and she even said this position may lead to another position which then may lead to a promotion. I have been working on this with my manager for over a year now; progress on getting me opportunities is slow... but at least it's starting to happen. Company C, like many companies nowadays, is having financial headwinds related to COVID; that may be contributing to my slow progress, but this issue is also older than COVID.
I'm starting to have success on my existing projects, and that could lead to great success. Having career success is equally important to me in comparison to money. I want success badly (getting moved from Company A/B robbed me of following through on past successful project).
I just got an interview for a nearby job. I don't have an offer yet, but wanted to get the ball rolling on ideas...
In an ideal world, I'd get a raise more quickly (immediately), and keep my current job. I like the people and manager despite the circumstances, and see a future for myself here. But, I don't want to damage my relationship with my manager, with whom I have a great relationship. I also want to see my current project through, hopefully commercialize it.
What do you think?