Translating a career mod?

One thing you could do to make it easier to translate, is to upload the .package file into The Sims 4 Translator tool.

modthesims.info/d/644008/the-sims-4-translator.html

Just make sure you set the source & destination language correctly in the Options, so when you output it again as a package, it will display correctly in the intended locale.




There's also String Table Studio online (stbl.sims4toolkit.com/), although it can lag if there's a large amount of strings in there.
I've tried uploading the package file from the mod you linked, and it caused some issues.