Dataford
Top 18
Prep plan
Updated weekly · Last refresh Aug 30

Stem Software Engineer Interview Questions

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

18questions
~2htotal time
Track your progressSign up free to work through all 18 questions and resume where you left off.
Start practicing free →
1
PipelinesStart here. 3 questions · ~24 min
Zero-Downtime Database MigrationsHard

Tests your ability to execute safe schema changes with minimal risk to availability.

availabilityschema evolutionCloudStem
Real-Time Battery Data IngestionHard

Tests your ability to design ingestion and processing pipelines for high-frequency energy telemetry.

data integrationStream ProcessingmonitoringStem
Sync vs Async Message ProcessingMedium

Tests your understanding of distributed system tradeoffs and messaging design choices.

Stream Processingasynchronous workdistributed systemsStem
2
Behavioral & Leadership10 questions · ~81 min
More Behavioral & Leadership questions with a free account
3
More topics5 questions · ~41 min
Optimizing Time-Series Query PerformanceHard

Tests your performance tuning skills for time-series workloads and large-scale queries.

Performance Tuningquery optimizationTime SeriesStem
Scalable Telemetry API DesignHard

Tests ability to design scalable APIs for high-throughput real-time telemetry use cases.

rest apisscalabilitytelemetryStem
API Response Time OptimizationMedium

Tests your ability to diagnose and improve API latency through engineering and system design choices.

performanceStem
Building Clean .NET APIsHard

Evaluates your ability to design and implement maintainable backend APIs with modern .NET practices.

best practicesStem
Caching Strategy for EndpointsMedium

Assesses your approach to selecting caching layers and designing cache correctness and performance.

api designcachingStem

Sign up to see every question

Create a free account to unlock this list and practice real interview questions.

Get my prep plan
Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Top Users by Recent Transaction VolumeMedium
Practice
Practice drill

Find the top 3 users by completed transaction volume in the last 30 days using joins and aggregation.

Data Analysisquery optimizationsqlTTier 1 BankRevolutChime
Top Content by Watch TimeMedium
Practice
Practice drill

Rank Disney+ Hotstar content by monthly watch time using aggregation, joins, and ROW_NUMBER().

Window FunctionsData Analysisquery optimizationDDisney+HotStar
Pivot Lucid Campaign Performance by MonthMedium
Practice
Practice drill

Use joins, a CTE, CASE expressions, and monthly pivoting to compare Lucid campaign performance across channels.

pivot tablesnull handlingData WranglingLucid Motors
The finish line: interview-readyComplete all 18 questions plus 3 hands-on drills to finish this plan.