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Updated weekly · Last refresh Aug 30

ByteDance Software Engineer Interview Questions

The questions to prepare for a ByteDance Software Engineer interview. Questions from real interview reports rank first. Updated weekly.

50questions
~9htotal time
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1
CodingStart here. 9 questions · ~100 min
Reverse Nodes in K GroupsMedium
Practice

Problem Given the head of a singly linked list and an integer k, reverse the nodes of the list k at a time and return the modified head. If the number of ...

Linked ListsAlgorithmsedge casesByteDance
Implement LRU CacheEasy
Practice

Problem Design a data structure that implements an LRU (Least Recently Used) cache. The cache should support the following operations: - get(key): Retrieve...

Hash TablesQueueLinked ListsByteDance
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2
Execution8 questions · ~88 min
Pushing Back on DecisionsMedium

Tests communication, influence, and decision-making under disagreement.

Trade-offsRisk AssessmentScope ManagementByteDance
Production Failure Root CauseMedium

Tests incident analysis, debugging, and reliability improvements after outages.

Rollback PlanSuccess CriteriaRisk AssessmentByteDance
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3
Security & Infrastructure8 questions · ~88 min
Identify Process Responsible for Disk UsageMedium

Assesses practical troubleshooting skills for resource attribution on production systems.

TroubleshootingByteDance
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4
System Design8 questions · ~88 min
Large-Scale System ProjectMedium

Assesses ability to describe large-scale engineering work and its constraints and outcomes.

project experienceByteDance
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5
Pipelines7 questions · ~77 min
Should Unlikes Be CountedMedium

Assesses product and metric definition clarity for designing event-based counters.

ByteDance
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6
SQL & Data Manipulation8 questions + 3 drills · ~118 min
7
More topics2 questions · ~22 min
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The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.