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Updated weekly · Last refresh Aug 30

iCapital Data Engineer Interview Questions

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

25questions
~4htotal time
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1
SQL & Data ManipulationStart here. 3 questions + 2 drills · ~46 min
Top Customers by Region VolumeMedium
Practice

Find the top 3 customers in each region by transaction volume using joins, aggregation, and window ranking.

Window FunctionsJoinsRankingiCapital
SQL and API Data ManipulationHard

Evaluates your ability to integrate REST API data and execute complex SQL-based transformations.

Data ManipulationapisqliCapital
Monthly Sales Trends by CategoryMedium
Practice
Practice drill

Aggregate monthly sales by product category and use LAG to calculate month-over-month changes.

InfrastructureToolsData WranglingTotal Wine & MoreInc.Benjamin Moore
Contact Center Agent Performance MetricsHard
Practice
Practice drill

Compute daily agent call KPIs and SLA using joins, aggregations, and window ranking in a contact center model.

ETLAggregationsData ModelingADP
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2
Pipelines18 questions · ~157 min
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityiCapital
Design Real-Time Sensor Event PipelineHard

Design a real-time pipeline for sensor events that transforms data and feeds a UI with low latency.

Stream ProcessingOrchestrationDependenciesiCapital
Diagnose an Integration Pipeline IssueMedium

Structured approach to diagnose failures in an ETL integration, from source extraction through orchestration, data quality, and idempotent recovery.

ToolsDependenciesQualityiCapital
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3
Coding4 questions · ~35 min
Choosing Data Structures at ScaleEasy

Explain which data structures work best for large datasets based on access patterns, memory use, and update costs.

Hash TablesArraysHeapiCapital
Data Manipulation Coding ChallengeMedium

Tests hands-on ability to implement correct data transformations under time constraints.

Hash TablesArraysStringsiCapital
Merging Datasets in PythonMedium

Tests your practical Python skills for data integration and correctness handling.

Hash TablesArraysSortingiCapital
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The finish line: interview-readyComplete all 25 questions plus 2 hands-on drills to finish this plan.