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Software Engineer Interview Experience

February 19, 2026
Positive ExperienceNo Offer

Process

Was a two person panel asking various questions about computer architecture, CI/CD, and test automation.

The interview lasted about an hour and I'm still waiting to hear back. Was a good interview process, just prepare for more technical explanations, rather than pure coding knowledge.

Questions

What are some differences between x86 and ARM architecture.

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Interview Statistics

The following metrics were computed from 2 interview experiences for the Castelion Software Engineer role.

Success Rate

0%
Pass Rate

Castelion's interview process for their Software Engineer roles is extremely selective, failing the vast majority of engineers.

Experience Rating

Positive50%
Neutral0%
Negative50%

Candidates reported having mixed feelings for Castelion's Software Engineer interview process.