I received a coding challenge about two weeks after submitting my college application. It was really difficult, even harder than Google's. There were seven questions in total, to be completed in an hour and thirty minutes.
The challenge included two coding problems similar to LeetCode ones, and a variety of multiple-choice and fill-in-the-blank questions.
Variety of questions concerning OS concepts like file systems, concurrency, inter-process communication, and locks.
Also, challenging algorithmic problems.
The following metrics were computed from 4 interview experiences for the Block Software Engineering Intern role in United States.
Block's interview process for their Software Engineering Intern roles in the United States is fairly selective, failing a large portion of engineers who go through it.
Candidates reported having very good feelings for Block's Software Engineering Intern interview process in United States.