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Updated weekly · Last refresh Aug 30

Marsh Software Engineer Interview Questions

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

49questions
~7htotal time
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1
CodingStart here. 12 questions · ~102 min
Maximum Subarray SumEasy
Practice
Recently asked

Compute the largest sum of any contiguous subarray using Kadane's algorithm in O(n) time.

Dynamic ProgrammingArraysGreedyMarsh
Binary Search Implementation and ComplexityEasy
Recently asked

Explain how binary search works on a sorted array and why its time complexity is O(log n).

MathArraysSearchingMarsh
Decimal to Binary AlgorithmEasy
Recently asked

Tests algorithmic thinking for base conversion and correctness.

Bit ManipulationMathfunctionsMarsh
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2
SQL & Data Manipulation5 questions + 3 drills · ~73 min
Normalization vs Denormalization TradeoffsMedium
Recently asked

Explain normalization, why it improves data integrity, and when denormalization is a practical performance tradeoff.

schema designperformanceData ModelingMarsh
SQL Joins and Duplicate DetectionMedium
Recently asked

Tests SQL join understanding and ability to write queries for duplicate detection.

JoinsGroup ByMarsh
SQL String ManipulationMedium

Tests SQL query writing and string manipulation skills.

string manipulationsqlMarsh
SQL Join and Group By PracticeHard
Practice
Practice drill

Join SAT data, aggregate monthly center performance, and compare average scores with LAG.

JoinsGroup BysqlThe College Board
Second-Highest Salary SQLMedium
Practice
Practice drill

Find the second-highest salary and department statistics using DENSE_RANK, LEFT JOIN, GROUP BY, and aggregate functions.

JoinsGroup Bysqlairtel
Top Earners via Table JoinMedium
Practice
Practice drill

Rank Motorola Solutions employees by total earnings using a LEFT JOIN, aggregation, COALESCE, and ROW_NUMBER.

JoinssqlMotorola SolutionsMotorola
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3
Behavioral & Leadership30 questions · ~255 min
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4
More topics2 questions · ~17 min
ExtJS Frontend and Backend CommunicationMedium

Tests understanding of client-server communication patterns in ExtJS-based apps.

Marsh
Marsh Architecture and AuthMedium

Assesses system design thinking and secure authentication and authorization practices.

authenticationsystem architectureMarsh
The finish line: interview-readyComplete all 49 questions plus 3 hands-on drills to finish this plan.