Roku Software Engineer interview experience

After an early screening, I had rounds that focused on coding and then shifted into systems-style thinking and design. The first coding round dealt with concurrency issues in Max Stack, and it immediately set the tone that correctness under tricky constraints mattered.

In the next round I was asked to deep clone a graph, which pushed me to reason carefully about references and traversal. The following round was more design-forward: I designed a “top N words” service and had to explain the data structures I’d use. That naturally led into a system design interview about building a