Fair enough. In my personal experience, C is the big coding skill looked for, but I mostly work for defence companies and major manufacturers. If you don't look at job listings for that sort of company, or your country simply doesn't have those industries in significant size, you'll see something else. I regularly see skilled embedded coders being poached with ridiculous pay rises because they're so useful and so hard to get (40 or 50 percent increase in salary upon being poached/headhunted isn't uncommon for someone a few years out of university who spent those few years learning how to code for embedded systems, but that's usually being poached between defence companies and major appliance makers - Lockheed, Thales, Honeywell, that kind of thing).