There were two rounds for me: one phone screen and one technical round. The technical round was a bit tough. You have to know data structures and algorithms very well.
Tree data structure.
The following metrics were computed from 1 interview experience for the Groupon Mobile Developer role in Chicago, Illinois.
Groupon's interview process for their Mobile Developer roles in Chicago, Illinois is extremely selective, failing the vast majority of engineers.
Candidates reported having very good feelings for Groupon's Mobile Developer interview process in Chicago, Illinois.