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Updated weekly · Last refresh Sep 21

6sense Software Engineer Interview Questions

The questions to prepare for a 6sense Software Engineer interview. Questions from real interview reports rank first. Updated daily.

50questions
~10htotal time
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1
CodingStart here. 27 questions · ~310 min
Binary Search in Sorted ArrayEasy
Practice

Implement binary search to find a target in a sorted array in O(log n) time.

RecursionMathArrays6sense
Check Binary Tree BalanceEasy
Practice

Use postorder recursion to determine whether a binary tree is height-balanced in O(n) time.

RecursionSearchingTrees6sense
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2
System Design5 questions · ~57 min
Design Instagram Post ServiceHard

Design an ML-backed Instagram post service covering ingestion, retrieval, ranking, serving, and feedback at scale.

ML Rankingdistributed systemsdesign6sense
Concurrency for Document EditingHard

Evaluates your approach to concurrency control mechanisms for collaborative editing.

system designconcurrency6sense
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3
Execution7 questions · ~80 min
Investigate and Resolve a BugMedium

Tests incident triage, debugging workflow, and communication during bug resolution.

Risk AssessmentScope ManagementQuality6sense
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4
Behavioral & Leadership8 questions · ~92 min
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5
More topics3 questions · ~34 min
Phrase Search in a DocumentMedium

Assesses your ability to design an efficient text search approach for exact phrase matching.

search6sense
End-to-End Data Pipeline for ScoringHard

Assesses pipeline design for combining batch processing with real-time identity and scoring.

data pipelineBatch Processing6sense
Print Organization Chart from EmployeesHard

Tests your ability to model hierarchical relationships and transform data into a tree structure.

data integrity6sense
Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
SQL Duplicate DetectionEasy
Practice
Practice drill

Find duplicate customer profiles by grouping on identifying fields and returning only repeated records.

Group ByHavingAggregationsAdtalem Global EducationUniversity of Southern CaliforniaBlue Cross Blue Shield of Michigan
SQL Expected vs Actual ComparisonHard
Practice
Practice drill

Compare expected and actual 6sense QA results using a FULL OUTER JOIN, aggregation, NULL-safe comparisons, and CASE status logic.

SubqueriesJoinsData Wrangling6senseApex Systems
Anagram Check With SQLMedium
Practice
Practice drill

Compare normalized character signatures to determine whether each pair of strings is an anagram.

data cleaningJoinsstring manipulationAdobe
The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.