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Updated weekly · Last refresh Oct 17

Union Bank Software Engineer Interview Questions

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

39questions
~6htotal time
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1
SQL & Data ManipulationStart here. 5 questions + 1 drill · ~59 min
SQL Above Average QueryEasy
Practice

Find approved Union Bank loans above the average approved amount using a scalar subquery and branch join.

aggregationsqlUnion Bank
Running Total With Window FunctionsEasy
Practice

Calculate each user's running order total over time using a window function.

Window FunctionsDate FunctionsRunning TotalsUnion Bank
SQL for Branch Transaction MetricsMedium
Practice
Practice drill

Aggregate monthly branch activity by region and calculate approval rates plus month-over-month transaction-volume changes.

Window FunctionsLag/LeadDate FunctionsUnion Bank
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2
Coding17 questions · ~168 min
Generate Fibonacci SeriesEasy
Practice

Generate the first n Fibonacci numbers using an iterative algorithm.

Basic AlgorithmsloopsUnion Bank
Object-Oriented Programming PrinciplesEasy

Tests understanding of OOP concepts like encapsulation, inheritance, and polymorphism.

RecursionStringsUnion Bank
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3
Execution3 questions · ~30 min
Handling a Critical Production BugEasy

Describe how you handled discovery, escalation, triage, and containment of a critical bug under release pressure.

Trade-offsSuccess CriteriaRisk AssessmentUnion Bank
Optimizing a Slow ApplicationHard

Tests your performance troubleshooting and optimization methodology.

Trade-offsSuccess CriteriaRisk AssessmentUnion Bank
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4
Behavioral & Leadership12 questions · ~119 min
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5
More topics2 questions · ~20 min
Design a Digital Banking Offer RankerHard

Design an ML system that ranks banking offers for online customers using retrieval, ranking, and re-ranking.

ML RankingRecommendation SystemsUnion Bank
Design Feature Drift Monitoring SystemHard

Design a production ranking system with robust feature drift monitoring across batch and real-time features at high QPS.

Feature StoreFeature DriftModel ServingUnion Bank
The finish line: interview-readyComplete all 39 questions plus 1 hands-on drill to finish this plan.