Cognite Data Engineer Interview Questions

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

Design High-Throughput Event Pipeline

Hard

Design a real-time event pipeline that can handle millions of events per second with sub-second latency.

data pipelineevent processinglatency

Cognite

Production Pipeline Quality Monitoring

Medium

Approach for adding data quality checks, observability, and production monitoring to a data pipeline.

Data Qualitymonitoringobservability

Cognite

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Schema for Asset Tracking

Hard

Tests data modeling for time-series and operational analytics in an industrial SaaS context.

financial datadata integrityData Modeling

Cognite

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First Non-Repeating Character

Medium

Tests implementing an efficient streaming string algorithm in Python.

Hash TablesStream ProcessingStrings

Cognite

Python API Rate Limiter

Medium

Tests designing request throttling logic for high-throughput industrial data ingestion.

Hash Tablesfunctionsoop

Cognite

Optimal String or Array Algorithm

Medium

Tests algorithmic thinking and complexity analysis for data engineering workloads.

ArraysStringsSorting

Cognite

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