Small industrial IoT hardware manufacturers would bea good place to start looking, in my opinion. If you are not familiar with things like Yocto, Buildroot, RA

Small industrial IoT hardware manufacturers would bea good place to start looking, in my opinion. If you are not familiar with things like Yocto, Buildroot, RAUC, etc. for building embedded systems, learning at least the basics using a Raspberry Pi Zero may work in your favor. There are also consumer IoT manufacturers, networking gear manufacturers, or, if you're really ambitious, Google (Android), Apple, or Microsoft. The job market is, as others have pointed out, very bad right now so your search is likely to be long but don't give up. It's a rewarding career. Good luck!