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Prep plan
Updated weekly · Last refresh Aug 30

Discover Software Engineer Interview Questions

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

50questions
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1
Security & InfrastructureStart here. 4 questions · ~32 min
Mutex and Thread SafetyMedium

Tests understanding of concurrency primitives and reasoning about thread safety.

thread safetyconcurrencyDiscover
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2
System Design10 questions · ~80 min
Circuit Breaker PatternMedium

Evaluates resilience pattern knowledge for distributed systems.

microservicesDiscover
Implement a Message QueueMedium

Assesses distributed systems fundamentals for messaging and delivery semantics.

implementationDiscover
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3
Coding13 questions · ~105 min
Java 8 Features and CollectionsMedium

Assesses Java 8 proficiency and practical use of core collection types.

collectionsDiscover
React Testing and Spring InternalsMedium

Assesses practical frontend testing, Spring internals knowledge, and AWS data access design.

reactDiscover
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4
Behavioral & Leadership18 questions · ~145 min
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5
More topics5 questions · ~40 min
Agile UX DeliveryMedium

Tests your ability to deliver UX work in iterative cycles and collaborate within agile teams.

Trade-offsAgileScope ManagementDiscover
What Is Software TestingEasy

Tests baseline understanding of software testing concepts.

quality assuranceTestingDiscover
Batch and CI/CD with AWSMedium

Assesses your practical experience with modern web delivery pipelines and cloud deployment.

javaCI/CDawsDiscover
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Analyze Customer Purchase Trends with Window FunctionsEasy
Practice
Practice drill

Calculate the monthly spending trends for customers using window functions and joins.

The Home DepotAvisoWorld Wide Technology
Top Customers by Last-Quarter SpendMedium
Practice
Practice drill

Join customers and transactions, filter to the previous quarter, aggregate spend, and return the top three customers by total spend.

Date FunctionsJoinsAggregationsApptioQuantiphiDiscover
User Step-By-Step Navigation QueryMedium
Practice
Practice drill

Sequence each Discover Mobile App interaction with ROW_NUMBER to label a user's journey as step1, step2, and later steps.

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