Keep going OP, it's a pretty impressive knowledge you've got there. I think that sadly unless you are working as a project leader or something like that, being multilingual won't help you much. The industry almost exclusively uses English. Translations and stuff like require more languages, but they are uncommonly done by the programmers themselves. If your company has partnership with Koreans, Japanese or Chinese then you might get lucky though. If you are not a complete autistic mess they might assign you to work with them and become their "communicator".
Our company recently got some "temporary" pajeets. They speak with broken English, always sit by themselves and speak Hindi or whatever and nobody can understand them. This leads to many headaches and errors due to misunderstandings, but diversity lmao. The language barrier is horrible when you have to work as a team. It's literally us vs the Indians, they don't even want to communicate, we have to ask them everything. Everybody can speak English, but the finer details and the planning are always more comfortable in your native language in every field. Sounds stereotypical, but the Pajeets are literally bringing us down. Moral: don't work with foreigners. Also don't leave your country for a job in Asia, they absolutely don't treat foreigners well.
Feels good I learned Russian in high school. Heard that Portuguese is getting more popular too, due to Brazil finally gaining internet access. Didn't know that Iran was getting influential in tech though.