There are 2 rounds of 30 minute interviews back to back so 2 1 hour interviews total, they are team dependant and hence it's good to just prepare generally, they are generally LeetCode style questions, doing neetcode150 should put you in a good spot
They asked me to build a mathematical parser, which allows for differentiation, and the follow up would be integration, but I did not reach that portion yet.
The following metrics were computed from 4 interview experiences for the Millennium Software Engineer (Internship) role in London, England.
Millennium's interview process for their Software Engineer (Internship) roles in London, England is fairly selective, failing a large portion of engineers who go through it.
Candidates reported having very good feelings for Millennium's Software Engineer (Internship) interview process in London, England.