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Kraken Digital Asset Exchange Data Engineer Interview Questions

The questions to prepare for a Kraken Digital Asset Exchange Data Engineer interview. Questions from real interview reports rank first. Updated weekly.

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1
SQL & Data ManipulationStart here. 4 questions + 2 drills · ~56 min
Top 10 Products SQL QueryEasy
Practice

Use date filtering, GROUP BY, SUM, and ORDER BY to find Artefact's top 10 products by sales last month.

sqlKraken Digital Asset Exchange
SQL vs NoSQL for Go-to-Market DataEasy

Explain how SQL and NoSQL differ in schema, consistency, scaling, and Demandbase-style analytics use cases.

JoinsData WranglingKraken Digital Asset Exchange
Indexing for Database PerformanceEasy

Tests knowledge of query planning, indexing tradeoffs, and performance tuning fundamentals.

JoinsData WranglingAggregationsKraken Digital Asset Exchange
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
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
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2
Pipelines15 questions · ~136 min
Batch vs Stream Processing Trade-offsMedium

Compare batch and stream processing across latency, complexity, cost, and data quality in a modern analytics pipeline.

InfrastructureStream ProcessingETLKraken Digital Asset Exchange
Data Quality and Schema EvolutionMedium

Approach for handling schema changes and data quality checks in a high-volume data lake pipeline.

schema evolutionData ModelingQualityKraken Digital Asset Exchange
Data Modeling Tools and ArchitectureEasy

Preferred tools and patterns for data modeling and pipeline architecture in a modern data platform.

InfrastructureToolsData ModelingKraken Digital Asset Exchange
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3
Behavioral & Leadership7 questions · ~63 min
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4
More topics2 questions · ~18 min
Python Record DeduplicationEasy
Practice

Remove duplicate Bloom Energy telemetry records by record ID while preserving the first occurrence and original order.

Hash TablesArraysStringsKraken Digital Asset Exchange
JSON to CSV TransformationEasy

Tests ability to implement practical data transformation logic from JSON to CSV.

Hash TablesArraysStringsKraken Digital Asset Exchange

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