I was contacted by the recruiter. I had a manager round where the manager and a tech lead asked basic questions, more like introductions and if I was suited for the role.
I was then called to schedule a technical round, which had four technical staff. My feeling was that Costco is way too outdated, and the questions were very basic. There were no system design or scenario-based questions, and a lot of questions were asked for which the technical team themselves didn't know the correct answer.
One of the interviewers was very rude, who seemed to have only bookish knowledge and laughed at a correct answer. I would not like to work with a team like that, who is not keen to do things in a more modern way.
Some questions related to how things were done 20 years ago.
Zero modernization questions. Zero scenario-based questions. Zero architecture questions.
The following metrics were computed from 1 interview experience for the Costco Sr. Software Engineer role in United States.
Costco's interview process for their Sr. Software Engineer roles in the United States is extremely selective, failing the vast majority of engineers.
Candidates reported having very negative feelings for Costco's Sr. Software Engineer interview process in United States.