3 steps in total:
Step 1) HackerRank
Step 2) A two-week-long take-home assignment on GitHub. Also, there were four "office hours" designed to be a resource for applicants working on the assignment, as well as an opportunity to learn more about the culture at Box.
Step 3) Code walkthrough with an engineer and a behavioral interview with a recruiter.
The folks at Box were very nice and supportive along the way.
2-week long take-home assignment:
Given the specs, design and build a simplified version of Shogi (called mini-Shogi) using one of three language options: Java, Python, or Javascript.
The following metrics were computed from 9 interview experiences for the Box Software Engineer (Internship) role in United States.
Box's interview process for their Software Engineer (Internship) roles in the United States is extremely selective, failing the vast majority of engineers.
Candidates reported having very good feelings for Box's Software Engineer (Internship) interview process in United States.