I took an online assessment on Codility which consisted of three questions.
Two of the questions could only be answered in C++. The last question could be answered in C++, Java, or Python.
This was followed by a phone interview a few weeks later.
Phone interviews do not involve any coding. They focus more on one's understanding of concepts regarding memory, Operating Systems, etc. (at least in my experience).
I can't really disclose more, as they asked me not to.
The following metrics were computed from 1 interview experience for the Hudson River Trading Software Engineering Intern role in London, United Kingdom.
Hudson River Trading's interview process for their Software Engineering Intern roles in London, the United Kingdom is extremely selective, failing the vast majority of engineers.
Candidates reported having very good feelings for Hudson River Trading's Software Engineering Intern interview process in London, United Kingdom.