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BNY Mellon Software Engineer Interview Questions

The questions to prepare for a BNY Mellon Software Engineer interview. Questions from real interview reports rank first. Updated weekly.

50questions
~7htotal time
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1
CodingStart here. 24 questions · ~196 min
Explain Solution Time ComplexityEasy

Explain how to analyze an algorithm’s time and space complexity and justify the result from the code structure.

Hash TablesSearchingSortingBNY Mellon
Sorting Algorithms EfficiencyMedium

Tests your understanding of time and space complexity tradeoffs and when to choose each algorithm.

efficiencyperformance analysisBNY Mellon
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2
Execution7 questions · ~57 min
Ensure Distributed Data ConsistencyHard

Define an execution approach for maintaining data consistency across distributed systems while balancing delivery speed, risk, and operational resilience.

InfrastructureTrade-offsRisk AssessmentBNY Mellon
Cloud in Financial ApplicationsMedium

Tests your understanding of cloud architecture choices and their impact on security, resilience, and delivery.

system designBNY Mellon
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3
Security & Infrastructure5 questions · ~41 min
OSI Model LayersMedium

Evaluates your ability to map networking concepts to OSI layers.

NetworkingBNY Mellon
Explain Infrastructure ArchitectureMedium

Assesses your ability to describe system components and how they support application needs.

InfrastructurearchitectureBNY Mellon
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4
SQL & Data Manipulation4 questions + 3 drills · ~63 min
Java OOP and SQL JoinsMedium

Assesses SQL join fundamentals and core Java OOP concepts.

sqloopBNY Mellon
SQL Queries for RankingMedium
Practice
Practice drill

Rank active HSBC employees by division and return every employee tied for the highest or second-highest salary.

javasqlHsbc
SQL Sort QueryEasy
Practice
Practice drill

Sort Thales Ground Master radar readings by signal strength in ascending order, placing unknown values last.

SortingsqlThales
SQL for Sales and LogsHard
Practice
Practice drill

Aggregate completed Shopify sales and admin logins by merchant and month using CTEs, LEFT JOIN, and conditional logic.

case studysqlShopify
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5
System Design3 questions · ~24 min
Data Structures, Databases, and System DesignMedium

Assesses breadth across core CS, data storage, and system-level thinking.

database managementData StructuresBNY Mellon
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6
Behavioral & Leadership7 questions · ~57 min
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The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.