Embedded systems? Like sim cards? There's even real time Java, I think they used it for some missile guidance stuff aswell at some point

Yes, Aonix, nowadays belongs to PTC, still in business.

> Embedded systems? Like sim cards?

Serious question: I remember the old installer, six billion devices or whatever. I’ve heard about Java ME, old set-top boxes and DVD players, etc.

But how much of that is active today. I can’t say I’ve ever seen a job listing for an embedded Java developer or even Java ME in my entire career. Are people actually still using it?

Actually yes. Pretty much most credit cards are in fact JavaCards.

Weird but true, and quite obscure.

Yeah I didn't mean it as praise for Java (SE, ME, or whatever), but I don't think you're better off finding embedded WebAssembly jobs

https://github.com/bytecodealliance/wasm-micro-runtime https://github.com/WebAssembly/wabt/blob/main/wasm2c/README....

ISTR Siemens uses wasm2c to compile Wasm for a bunch of embedded devices runninng Zephyr RTOS.

Fair point, but translating to C is almost cheating ;)

Sure, but it's a trick not available to most JVM languages.