Atypically for the industry, their thoughtful, intentional interviewing process was spread out across multiple days.
This was my absolute favorite interviewing process ever, and I've been through quite a few of them. Nothing about the process seemed arbitrary or weird.
The following metrics were computed from 8 interview experiences for the Mercury Software Engineer role.
Mercury's interview process for their Software Engineer roles is fairly selective, failing a large portion of engineers who go through it.
Candidates reported having very good feelings for Mercury's Software Engineer interview process.