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Updated weekly · Last refresh Aug 30

Chime Data Engineer Interview Questions

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

50questions
~7htotal time
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1
SQL & Data ManipulationStart here. 4 questions + 1 drill · ~44 min
Longest Consecutive Login Streak per UserHard
Practice

Calculate the longest consecutive login streak for each user using window functions and date manipulations.

Window FunctionsJoinsAggregationsChime
Three-Day Chime Login StreaksHard
Practice

Use CTEs and window functions to count Chime users with a login streak of exactly three consecutive days.

Window FunctionsDate FunctionsCTEsChime
Optimize SQL Query PerformanceMedium

Assesses your SQL tuning skills for reducing latency and improving throughput.

Joinsquery optimizationAggregationsChime
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
Pipelines38 questions · ~322 min
Design an ETL Pipeline with Data Quality ChecksMedium

Develop an ETL pipeline to process 10TB of daily sales data with strict data quality validations and orchestration requirements.

Deep LearningChime
Implement Data Governance in ETL PipelinesMedium

Design an ETL pipeline that ensures data governance through quality checks and compliance in a retail analytics environment.

ETLChime
Data Profiling in ETL PipelinesEasy

Discuss how to use data profiling to understand source data and improve pipeline quality.

Data ModelingQualityChime
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3
Coding4 questions · ~34 min
Parse Nested JSON LogsMedium

Tests your ability to implement efficient Python parsing for large nested JSON logs.

parsingStringsData StructuresChime
Nested JSON Parsing With DriftHard

Evaluates your ability to build resilient parsers for evolving streaming data formats.

json parsingdata validationpythonChime
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4
Behavioral & Leadership4 questions · ~34 min
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The finish line: interview-readyComplete all 50 questions plus 1 hands-on drill to finish this plan.