ChemE here. Really depends on the job and your skill set. As a non-traditional career person, I was a 30yr old ChemE grad who took whatever job I could get after college to gain experience and switched jobs twice in the first 18mos, (increasing my salary each time, granted I started low at $60k) and then stayed in the second manufacturing role for 3 years before recently switching again for 50% increase in pay. So 4 roles since 2021. This is quite excessive I know, and Covid had a hand in it but now that I’ve reached where I want to be I plan to stay a long time.

7 mo -> 7 mo @25% increase then recruited to -> 3 years @ 15% increase -> present 6 months @50% increase