I didn't and I regret it.
I started with my current company about five years ago in a non-tech role, and I was mostly just so happy to get out of a bad job, work remotely, and be part of a company I really believed in. When I was promoted, I didn't negotiate either, which I also regret. Moving into my new position, I still retained some of my old duties that the previous person in my position wasn't responsible for, and I do wish I'd have demonstrated some of the added value I bring either in asking for a higher salary or more benefits, like an increased education budget.
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