Yeah. The trick is getting your foot in the door. Equal amounts of expertise and luck are helpful. Most jobs you'll find online or through a recruiter aren't going to be the $300k+ jobs. I found a job opening at an investment bank on monster.com (of all places) after having worked for tech companies for 15 years. I started at $150k. However once I was in finance, I was able to make connections and acquire skills that made me more valuable. After almost 5 years I was able to land a job that pays (much) more than $300k.

In my experience these firms do not do true hardware design. We purchase FPGA boards from 3rd party vendors and then do the FPGA development in house.