ByteDance Research Scientist Interview Questions
The questions to prepare for a ByteDance Research Scientist interview. Questions from real interview reports rank first. Updated weekly.
Use a hash map to find two array elements that sum to a target in O(n) time.
ByteDanceImplement an LRU cache in O(1) average time using a hash table and doubly linked list.
ByteDanceExplain how supervised and unsupervised learning differ, and ground the distinction in a practical ML example.
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Design a short-video recommendation system that balances immediate engagement with long-term retention in a personalized feed.
ByteDanceTests your system thinking for performance optimization in large-scale recommendation serving.
ByteDanceTests your ability to define success criteria, measure outcomes, and iterate based on evidence.
ByteDanceTests your approach to data quality, reconciliation, and robust modeling under inconsistencies.
ByteDanceEvaluates your understanding of risks, reliability issues, and safeguards for tool-using agents.
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