The only thing that matters to your career in the long run is $$$. The more you make, the more credibility you have and the more interesting work you’re able to pick for yourself. The endless variety of arbitrary “titles” is a device primarily designed to give you something in lieu of a bigger raise. Do not buy into that. Caveat: I’m speaking of the various “levels of seniority” within the same career track. If you e.g. become an exec, then yeah, your title will make a difference. But for lower levels, do recognize that this is a hamster wheel, and one that isn’t portable across companies. $$$ you’re willing to forego, and your skill set, will determine your level in a career move to a much greater extent than your current level. It’s the most powerful signal you can use in a negotiation.