Coinbase Software Engineer interview questions

Diving into the technical round, I was presented with a tricky problem about finding a duplicate number in an array. Right away, I felt the pressure; it had to be solved with O(1) space and better than O(n^2) time. The funny part is, I had literally seen this exact question on prachub.com while preparing just days before! The interview also included behavioral questions about teamwork and problem-solving. Overall, it was challenging, but I got the offer in the end, though I decided to decline.

Technical Screen, rigorous, 90-minute automated assessment, typically administered via CodeSignal, focusing on practical, multi-part coding problems rather than just abstract LeetCode-style questions. It often involves building functional, real-world components, such as a REST API or an in-memory database with data persistence and edge-case handling.