Whew. I was worried at first, but having two (remote) jobs actually isn't so hard. The only thing that occasionally comes up is a meeting conflict with my daily standup at my first job, in which case I just tell them I'm "running late" or "will miss standup today, here's my status" and nobody bats an eye.
This is a relatively easy way to break into the mid $200ks. Helps if your first job is already cemented pretty well and you've automated yourself out of most tasks and stuff