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Updated weekly · Last refresh Oct 17

HDFC Bank Software Engineer Interview Questions

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

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1
CodingStart here. 16 questions · ~147 min
Check Binary Tree BalanceEasy
Practice

Use postorder recursion to determine whether a binary tree is height-balanced in O(n) time.

RecursionSearchingTreesHDFC Bank
Linked List ReversalEasy
Practice

Reverse a singly linked list in-place using iterative pointer manipulation.

RecursionLinked ListsArraysHDFC Bank
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2
SQL & Data Manipulation6 questions + 3 drills · ~85 min
Understanding Stored Procedures in SQLMedium

Explain what a stored procedure is and its benefits in SQL databases.

HDFC Bank
Aggregate Functions in MS SQLEasy

Tests your practical knowledge of SQL aggregation behavior in Microsoft SQL Server.

Group ByAggregationsHDFC Bank
Optimize a Slow SQL QueryHard
Practice
Practice drill

Rewrite a slow PostgreSQL loan payment query to reduce scanned rows while preserving the required aggregated results.

database optimizationJoinsData WranglingAmeripriseEEltro Cyberchrome PrivateEnergyHub
Optimizing Slow SQL QueriesMedium
Practice
Practice drill

Rewrite a slow customer revenue query using efficient filtering, aggregation, and supporting indexes.

database optimizationindexesAggregationsIImpetus TechnologiesNCSCCS Global Tech
Top Customers by Transaction VolumeMedium
Practice
Practice drill

Write a SQL query to find the top 10% of customers by transaction volume over the last quarter at HDFC Bank. Use the customers and transactions tables. Tr...

Window FunctionsDate Functionsfinancial dataHDFC Bank
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3
Execution7 questions · ~64 min
Caching Strategy for BankingMedium

Tests your ability to balance performance and correctness for banking workloads using caching.

Trade-offsSuccess CriteriaRisk AssessmentHDFC Bank
Software Design PatternsMedium

Tests your understanding of design patterns and when to apply them to real problems.

Trade-offsScope ManagementHDFC Bank
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4
Behavioral & Leadership12 questions · ~110 min
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5
More topics2 questions · ~18 min
Design a URL Shortening ServiceHard

Design a URL shortening service that routes, ranks, and monitors links at scale.

Feature StoreModel ServingHDFC Bank
Scalable System for User RequestsHard

Evaluates your system design skills for high-throughput, reliable request handling in banking.

scalabilityHDFC Bank
The finish line: interview-readyComplete all 43 questions plus 3 hands-on drills to finish this plan.