I agree, there is more C code used in everyday life than anything else. But, regarding job offers, there's a bias, because this code tends to be very stable. The code in your microwave was written 10 years ago, and didn't change since then. OTOH, even a rather stable webapp like HN changed a lot in the meantime. Maybe the guy who worked on your microwave's code moved on to several other projects, and produced code for dozens of objects in your office, while the guy working on your company's website has been working fulltime on it since its creation.
Web stuff is maintenance heavy, so even a small webapp requires a lot of human work to keep working in the long run. Add this to the fact that, although most companies, even small ones, need a website that is more than a static single webpage, and/or a way to manage their customer / provider databases, there are rather few companies producing electronic appliances, and unless you live in the right place, most programming jobs you'll find are in high-level stuff.
Web stuff is maintenance heavy, so even a small webapp requires a lot of human work to keep working in the long run. Add this to the fact that, although most companies, even small ones, need a website that is more than a static single webpage, and/or a way to manage their customer / provider databases, there are rather few companies producing electronic appliances, and unless you live in the right place, most programming jobs you'll find are in high-level stuff.