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ValueLabs Software Engineer Interview Questions

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

50questions
~10htotal time
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1
CodingStart here. 12 questions · ~137 min
Random Number GenerationEasy
Practice

Generate a deterministic sequence of bounded pseudorandom integers using a linear congruential generator.

ValueLabs
Flatten and Remove DuplicatesMedium
Practice

Flatten a nested integer array and remove duplicates while preserving first-occurrence order using a stack and hash set.

Data ManipulationValueLabs
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2
SQL & Data Manipulation12 questions + 2 drills · ~157 min
Find Duplicate Records QueryEasy
Practice

Find duplicate Unity Test Framework runs using GROUP BY and HAVING, including duplicate groups containing NULL values.

Group ByReconciliationHavingValueLabs
Optimizing Slow Queries at ScaleHard

Explain how to diagnose and optimize a slow PostgreSQL query on large Apidel Technologies datasets.

SubqueriesJoinsData WranglingValueLabs
Second Highest Trader SalaryEasy
Practice
Practice drill

Find the second highest distinct salary from a single table using basic PostgreSQL ordering and limiting.

SubqueriesRankingSortingeClinicalWorksNNeenOpal CanadaInformatica
SQL, APIs, and OOPMedium
Practice
Practice drill

Combine API request and SQL execution records to explain query integration and object-oriented application structure.

JoinsapisqlKaseya
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3
Technical Fundamentals7 questions · ~80 min
Main Functionality and ConfigurationsMedium

Evaluates your ability to describe a system component’s purpose and how it is configured.

ValueLabs
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4
Execution3 questions · ~34 min
Improve a ServiceMedium

Assesses impact thinking, prioritization, and execution approach for service improvements.

Problem SolvingValueLabs
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5
Security & Infrastructure3 questions · ~34 min
Latest Attacks and Malware AlertsHard

Evaluates incident response thinking and security awareness for operational alerts.

incident responseValueLabs
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6
System Design10 questions · ~114 min
Difference Between Rest and SOAPMedium

Assesses API protocol knowledge and ability to compare architectural tradeoffs.

restValueLabs
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7
More topics3 questions · ~34 min
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The finish line: interview-readyComplete all 50 questions plus 2 hands-on drills to finish this plan.