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Updated weekly · Last refresh Oct 17

DeepInstinct Software Engineer Interview Questions

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

33questions
~5htotal time
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1
CodingStart here. 10 questions · ~92 min
Two Sum with TargetEasy
Practice

Use a hash map to find two array elements that sum to a target in O(n) time.

Hash TablesArraysStringsDeepInstinct
Longest Substring Without RepeatsMedium
Practice

Find the longest substring with all unique characters using a sliding window.

Hash TablesStringsTwo PointersDeepInstinct
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2
Security & Infrastructure5 questions · ~46 min
Spin Lock vs Preemption Trade-OffsHard

Evaluates your systems performance reasoning for synchronization primitives.

DeepInstinct
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3
System Design3 questions · ~27 min
Design a Similar ProductMedium

Assesses your product design thinking and ability to scope a comparable system.

product designcomparisonDeepInstinct
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4
Execution4 questions · ~37 min
Distributed Alerts Trade-OffsHard

Tests ability to reason about architecture choices for alerting pipelines, throughput, and failure modes.

Launch PlanningTrade-offsRisk AssessmentDeepInstinct
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5
Behavioral & Leadership8 questions · ~73 min
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6
More topics3 questions · ~27 min
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityDeepInstinct
SQL Union Query With ConstraintsMedium

Tests SQL query construction and correctness for UNION-based data manipulation.

sqlDeepInstinct
Endpoint Upgrade With Minimal PacketsMedium

Evaluates your approach to efficient endpoint update delivery and network payload minimization.

DeepInstinct

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
SQL and Data StructuresMedium
Practice
Practice drill

Aggregate completed PlayStation Store purchases and return accounts with at least two qualifying purchases.

JoinsCTEsData StructuresPlayStation
SQL Data Structure ReviewHard
Practice
Practice drill

Audit PostgreSQL metadata for missing or invalid keys and tables with inefficient sequential-scan patterns.

database optimizationindexesData StructuresMercury
Advanced SQL TopicsHard
Practice
Practice drill

Use joins, aggregation, CTEs, ranking, and CASE logic to summarize customer sales by region.

JoinsCTEsData StructuresWalmart Global Tech
The finish line: interview-readyComplete all 33 questions plus 3 hands-on drills to finish this plan.