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Updated weekly · Last refresh Aug 30

Taboola Software Engineer Interview Questions

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

50questions
~7htotal time
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1
CodingStart here. 27 questions · ~233 min
First Non-Repeating CharacterEasy
Practice
Recently asked

Find the first non-repeating character in a string using frequency counting and a second pass in O(n) time.

Hash TablesStringsSearchingTaboola
Array vs ArrayList TradeoffsEasy
Recently asked

Tests knowledge of core data structures and when to choose each based on performance and usage.

ArraysData StructuresTaboola
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2
Execution3 questions · ~26 min
Diagnosing Latency SpikesMedium
Recently asked

Tests incident troubleshooting approach using metrics, logs, tracing, and systematic narrowing.

latencyroot cause analysisTaboola
High Availability and Low LatencyHard
Recently asked

Tests distributed systems design choices for reliability, performance, and fault tolerance.

low latencyhigh availabilityTaboola
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3
SQL & Data Manipulation5 questions + 3 drills · ~73 min
Optimizing a Slow Query Under LoadHard
Recently asked

Tests database performance debugging, indexing, query plans, and load-aware optimization.

Performance Tuningdatabase optimizationTaboola
SQL, XML, CTR, and ComplexityHard

Evaluates your ability to combine parsing, metrics, and SQL reasoning under complexity.

algebrasql queriesTaboola
SQL for Good UsersMedium
Practice
Practice drill

Use CTEs and aggregation to find Taboola Ads Manager users averaging at least three weekly sessions and calculate session duration.

sql queryData AnalysisTaboola
Basic SQL and String ReverseEasy
Practice
Practice drill

Reverse Costar property search strings with PostgreSQL and flag rows whose stored expected value does not match.

sql queriesstring manipulationCostar
SQL: Character CountEasy
Practice
Practice drill

Count a target character case-insensitively in a Discord message using PostgreSQL string functions.

Data Analysissql queriesstring manipulationDiscord
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4
System Design8 questions · ~69 min
Taboola-Style Recommendation WidgetHard
Recently asked

Tests system design skills for large-scale recommendation and ad-tech style ranking and delivery.

system designRecommendation SystemsTaboola
TODO App Assignment DesignMedium

Evaluates software design discipline and code quality under assignment constraints.

clean codeTaboola
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5
Behavioral & Leadership7 questions · ~60 min
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The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.