I'm fairly certain that writing about JavaScript on my personal blog (https://adequatelygood.com) led directly to landing a lucrative job at Twitter in 2010 which was foundational to my career. I had just a few months of experience in JavaScript (or programming in any serious professional capacity) but writing about it made me taken seriously and was a major accelerant to my career.

Not sure of whether that experience is transferable in the current landscape. It also didn't hurt that I was already living in SF.