Classes in my high school required good knowledge of English, and I participated in English Language Olympiads. I took IELTS when I was in high school (7.5 / 9.0) and the SAT (1490/1600). I graduated from Constructor University Bremen, where all classes were taught in English and the main spoken language was English. Overall, I have fluent spoken and written English.
I also have experience teaching as a Teaching Assistant for three courses at Constructor University, where I communicated with students in English.