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Updated weekly · Last refresh Sep 23

HDFC Bank Data Engineer Interview Questions

The questions to prepare for a HDFC Bank Data Engineer interview. Questions from real interview reports rank first. Updated daily.

34questions
~5htotal time
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1
CodingStart here. 4 questions · ~36 min
Merge Two Sorted ArraysEasy
Practice

Merge two sorted arrays into one sorted array using a two-pointer linear scan.

ArraysSortingTwo PointersHDFC Bank
LRU Cache ImplementationMedium

Tests understanding of efficient cache design, eviction policy, and time complexity tradeoffs.

Hash TablesLinked ListsHeapHDFC Bank
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2
SQL & Data Manipulation8 questions + 2 drills · ~92 min
Optimizing Slow SQL QueriesMedium

Tests your approach to diagnosing and improving SQL performance.

HDFC Bank
SQL vs NoSQL for Banking DataEasy

Explain how relational SQL databases differ from NoSQL systems in schema, consistency, and scaling for banking workloads.

performancedatabasesData ModelingHDFC Bank
SQL Join QueryEasy

Tests proficiency with SQL joins and ability to combine tables correctly for analytics use cases.

SubqueriesJoinsData WranglingHDFC Bank
Top Customers by Region VolumeMedium
Practice
Practice drill

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

Window FunctionsJoinsRankingJPMorganChaseSilicon Valley BankNavi
Top Customers by Transaction VolumeMedium
Practice
Practice drill

Identify HDFC Bank customers in the top 10% by posted transaction count during the previous calendar quarter.

Window FunctionsDate Functionsfinancial dataHDFC Bank
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3
Pipelines21 questions · ~188 min
Design Data Quality Controls PipelineEasy

Design a batch data pipeline with quality gates, quarantine handling, and monitored reprocessing for 120M finance records per day.

ETLIdempotencyQualityHDFC Bank
Warehouse Analytics ExperienceEasy

Discuss practical experience using a data warehouse for analytics, including loading, transformation, orchestration, and data quality.

InfrastructureData ModelingHDFC Bank
Data Warehousing in PipelinesEasy

Explain what a data warehouse is and why it matters in analytics pipelines.

InfrastructureETLData ModelingHDFC Bank
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4
More topics1 question · ~9 min
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The finish line: interview-readyComplete all 34 questions plus 2 hands-on drills to finish this plan.