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Updated weekly · Last refresh Aug 30

Twitch Software Engineer Interview Questions

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

50questions
~9htotal time
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1
CodingStart here. 14 questions · ~156 min
Find Shortest Path in a Grid Using BFSEasy
Practice
Recently asked

Implement BFS to find the shortest path in a grid from start to end.

RecursionDynamic ProgrammingArraysTwitch
Reverse a Linked ListEasy
Practice
Recently asked

Reverse a singly linked list in place using pointer manipulation.

RecursionLinked ListsTwitch
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2
Security & Infrastructure10 questions · ~111 min
BGP Load Balancing and OSPF Area 0Hard

Assesses ability to design routing behavior across BGP and OSPF for robust traffic handling.

NetworkingTwitch
OSPF Area 0 DesignHard

Assesses network engineering knowledge for routing design and configuration constraints.

NetworkingTwitch
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3
System Design14 questions · ~156 min
Global CDN ArchitectureHard

Assesses system design skills for global delivery, resilience, and traffic management.

scalabilityload balancingTwitch
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4
Execution5 questions · ~56 min
Proceed When Data Is MissingMedium

Assesses how you handle incomplete requirements and drive progress with uncertainty.

Decision Makingdata handlingTwitch
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5
Behavioral & Leadership4 questions · ~45 min
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6
More topics3 questions · ~33 min
System Pipeline and StructureMedium

Evaluates ability to decompose pipelines and design maintainable system structure.

system designETLTwitch
Sorting and Search AlgorithmsMedium

Tests core algorithm skills and ability to structure data for search.

SearchingSortingTwitch
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
7-Day Rolling Active UsersMedium
Practice
Practice drill

Compute daily active users and a 7-day rolling average using a CTE, distinct counts, and window functions.

Window FunctionsDate FunctionsRunning TotalsMetaSpotifyMeta IT
Calculate 30-Day User RetentionHard
Practice
Practice drill

Use CTEs, joins, and date filtering to calculate 30-day retention by signup cohort from login and feature usage data.

Window FunctionsDate FunctionsAggregationsCurefitReachMobiIndeed
Buffering Users SQL QueryMedium
Practice
Practice drill

Use a CTE, join, and conditional aggregation to find Twitch users with over three buffering events and the highest watch time.

sql queryTwitch
The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.