It was a great experience. - CoreOS Team

Initial screening with manager:

• Basics of object-oriented programming and some basic OS questions.

After that, I had 6 rounds of onsite interviews via WebEx:

• Round 1: One basic coding question and discussion about my resume and Object-Oriented Programming.
• Round 2: Since it was a test engineer role, I was asked to define various test cases and explain how I would handle them.
• Round 3: Two linked list questions.
• Round 4: Resume discussion and one coding question.
• Round 5: Dynamic memory allocation implementation.
• Round 6: General discussion with the senior manager.

Some of the questions:

• Fibonacci series
• Reversal of Linkedlist
• Bitwise AND of all numbers between (a, b) where a < b and a & b are integers