I’m impactful, but this also seems to have a limit.
Within the last year I got a 16% bump, but I’m trying to do better.
I can take on more work, but I don’t think that would result in more pay.
I’ve thought about getting a second remote job (SWE or similar).
What alternatives exist besides switching companies?
Not to disrespect the "can I do better" part
Taking a second job in SWE is risky. You may hit IPR rules both sides and you risk termination at will for perceived disloyalty.
Would you tell your current employer you have a second job? What would you do, if they found out indirectly?