Netflix · Senior Software Engineer, Frontend (10 years)

Rounds

1. Phone screen

Questions asked

• Given a JSON object (a family tree), print the people names. Simple DFS.
  Example input:

  {"parentName": "sanhua", "children": [{"parentName": "xianluo"},{"parentName": "lihua", "children": [...]}, ...]}
  

  Output: ["sanhua", "xianluo", ...]
• Create your own Jest. Implement a few methods to make this work:

  expect(add(2, 2)).toBe(greaterThan(3))
  

• getVideosWithLikes (Promise orchestration):
  You have two unstable APIs (getVideos, getVideosLikes). One is critical (Videos), one is “nice-to-have” (Likes). If getVideos fails, the whole app fails. If getVideosLikes fails, you must still show the videos with null or 0 likes. Solution: just wrap getVideosLikes with try/catch.

Tips

• For the DFS tree traversal, practice recursion and handling nested objects.
• For the promise orchestration, Promise Deadline Guard on FrontendLead is similar.