About in 2015, I first time began to have connection with Foreign companies. 

But, I did not know how the processes are, I began to search for materials that could give me the answers.

Then, what qualifications will be needed in English interviews?

Then I found this book, it covers the skill part, as well as the non-technical part of English Tech interviews.

Covering common algorithms, CS fundamentals, and resume writing etc.

I have the English version EBook, there are several more latest editions out already. But this 3rd edition still covers CS basis, giving good insights about foreign interviews and is worth reading from my point of view.