Big Data learning is not very demanding in terms of English ability, but it does require a certain level, because when programming is carried out, it will come into contact with English vocabulary, so with a foundation in English, learning will be accelerated and the results will be better.

But there is no need to worry, because although programming is in English, it has a specific usage, and you will know it when you get used to it. The English words you need to use for programming are limited, so practice and look around and you'll be familiar with them.

So, the study of big data does not require a high level of English, do not worry too much about this, to adjust the mindset in time, focus on learning, as long as you are willing to work hard, learning big data is not difficult.

There are a lot of great programmers who have no basis in English, but they have achieved very good results in big data, which is due to their very strong personal ability, not a problem of English level.