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Updated weekly · Last refresh Oct 17

Motorola Solutions Backend Engineer Interview Questions

The questions to prepare for a Motorola Solutions Backend Engineer interview. Questions from real interview reports rank first. Updated daily.

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1
ExecutionStart here. 4 questions · ~33 min
Balance Debt and Feature DeliveryMedium

Explain how you prioritize technical debt versus feature work while aligning stakeholders and protecting delivery speed.

Trade-offsScope ManagementPrioritizationMotorola Solutions
Data Structure Trade-OffsMedium

Evaluates engineering judgment around time complexity, memory, and maintainability.

Trade-offsData StructuresMotorola Solutions
Fixing Production Performance BottlenecksMedium

Assesses troubleshooting, root-cause analysis, and measurable performance improvements.

productionMotorola Solutions
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2
More topics7 questions · ~57 min
SQL Sorting with DuplicatesMedium

Tests SQL proficiency and ability to write efficient queries for large datasets with duplicates.

SortingsqlMotorola Solutions
Scalability Improvements When RebuildingMedium

Evaluates how you prioritize scalability improvements and redesign decisions.

system designscalabilityMotorola Solutions
Optimizing Search for ScaleMedium

Tests algorithmic thinking and performance optimization for larger data volumes.

performanceSearchingMotorola Solutions
Architecture WalkthroughMedium

Tests your ability to explain system design decisions and trade-offs clearly.

project experiencearchitectureMotorola Solutions
Re-Architect for 10x TrafficHard

Evaluates system design decisions for scaling backend services under major load growth.

system architecturescalabilityMotorola Solutions
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
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
Top Customers by Sales RevenueEasy
Practice
Practice drill

Use GROUP BY and SUM to rank the top 10 customers by total revenue from a single sales table.

RankingGroup ByAggregationsHousecall ProEquifaxXYZ
SQL for Operational PerformanceMedium
Practice
Practice drill

Use joins, conditional aggregation, and date filtering to measure Carvana location performance over the last 30 days.

Date FunctionsGroup ByAggregationsCarvanaGeorgetown UniversityPluralsight
The finish line: interview-readyComplete all 11 questions plus 3 hands-on drills to finish this plan.