Roku Senior Software Engineer Backend Interview Experience
Interview Experience
Recently, I interviewed at Roku for the Senior Software Engineer (Backend) role. I’m sharing my experience in the hope that it helps others who are preparing. >
Note: The interview process at Roku
Full Details
Recently, I interviewed at Roku for the Senior Software Engineer (Backend) role. I’m sharing my experience in the hope that it helps others who are preparing. >
Note: The interview process at Roku seems quite unpredictable. Until you’re actually in the interview, you may not know what type of round it will be — it could be DSA, LLD, or HLD.
Round 1 Focused on Java internals (primarily around concurrency and thread safety) along with a DSA problem in the LeetCode Medium/Hard range.
Round 2 Again covered Java internals, followed by a Low-Level Design (LLD) question. The emphasis was on writing production-grade code, with special attention to concurrency handling and thread safety.
Round 3 A System Design round focused on designing a scalable backend system.
About This Question
This is a candidate experience report from a roku interview for a swe role (senior level) during the system design round reported in 2026.
It covers the following topics: Os, Concurrency, System Design .
Difficulty rating: Hard