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Updated weekly · Last refresh Nov 11

TikTok Shop Software Engineer Interview Questions

The questions to prepare for a TikTok Shop Software Engineer interview. Questions from real interview reports rank first. Updated daily.

50questions
~7htotal time
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1
CodingStart here. 24 questions · ~201 min
Longest Segment with K Distinct ProductsMedium
Practice
Recently asked

Find the longest contiguous TikTok Shop product sequence containing at most k distinct products using a sliding window.

data processingSliding WindowoptimizationTikTok Shop
Topological Sort VariationsMedium
Recently asked

Assesses your graph reasoning and ability to adapt topological sort patterns.

topological sortTikTok Shop
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2
Security & Infrastructure6 questions · ~50 min
Deadlock ConditionsHard
Recently asked

Explain the four Coffman conditions for OS deadlock and distinguish deadlock from starvation.

Operating SystemsdeadlockconcurrencyTikTok Shop
Symmetric vs Asymmetric EncryptionMedium
Recently asked

Assesses your understanding of encryption fundamentals and practical tradeoffs.

encryptionTikTok Shop
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3
Pipelines3 questions · ~25 min
Hadoop Alternative Pipeline ReasoningMedium
Recently asked

Assesses your ability to reason about pipeline alternatives and constraints.

hadoopTikTok Shop
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4
SQL & Data Manipulation3 questions + 3 drills · ~55 min
Backend and SQL for Data WorkMedium
Recently asked

Evaluates backend fundamentals and practical SQL skills for data-driven features.

leetcodesqlTikTok Shop
Seller Monthly GMV Ranking and GrowthHard
Practice
Practice drill

Calculate monthly TikTok Shop seller GMV, growth, ranking, and cumulative performance from order data.

Joinssql queriescomplex queriesTikTok Shop
7-Day Rolling Active UsersMedium
Practice
Recently asked
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
Recently asked
Practice drill

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

Window FunctionsDate FunctionsAggregationsCurefitIndeedTikTok
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5
System Design6 questions · ~50 min
Past Project Architecture Deep DiveMedium
Recently asked

Assesses architectural thinking, debugging through design, and ability to explain system structure.

architectureTikTok Shop
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6
Behavioral & Leadership7 questions · ~59 min
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7
More topics1 question · ~8 min
Set KPIs for the RoleMedium
Recently asked

Evaluates goal setting, metrics thinking, and alignment to execution outcomes.

KPIsrole understandingTikTok Shop
The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.