In post-Communist countries the defense industry is rock solid corruption and nepotism, mostly they assemble things on foreign licenses. In developed countries like Italy, France, Germany, Sweden defense industry don't hire foreigners and also nepotism, and even there the engineering jobs are meh. Basically there is no defense industry boom. There might be some drone related interesting things happening in Ukraine itself as they can squeeze out a lot of extremely cheap labor but you rather don't want to emigrate to Ukraine.
