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Machinify Interview Questions

The questions to prepare for Machinify interviews, across all roles. Questions from real interview reports rank first. Updated weekly.

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1
CodingStart here. 4 questions · ~34 min
Shortest Path in Weighted GraphHard
Practice

Use Dijkstra’s algorithm with a priority queue to find the shortest path in a weighted graph with non-negative edges.

shortest pathAlgorithmsGraphsMachinify
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2
Execution5 questions · ~42 min
Migrate Monolith to MicroservicesHard

Plan a zero-downtime migration from a legacy monolith to microservices while managing risk, sequencing, and stakeholder pressure.

Trade-offsRoadmappingRisk AssessmentMachinify
Distributed Rate LimitingHard

Tests system design for resilience, fairness, and correctness under distributed load.

InfrastructureTrade-offsRisk AssessmentMachinify
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3
Pipelines5 questions · ~42 min
Design Data Quality Controls PipelineEasy

Design a batch data pipeline with quality gates, quarantine handling, and monitored reprocessing for 120M finance records per day.

ETLIdempotencyQualityMachinify
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4
SQL & Data Manipulation5 questions + 3 drills · ~72 min
SQL Optimization and DeadlocksHard

Tests deep SQL and database transaction tuning skills for reliability and performance.

acid propertiesperformancetransactionsMachinify
Monthly Sales Trends by CategoryMedium
Practice
Practice drill

Aggregate monthly sales by product category and use LAG to calculate month-over-month changes.

InfrastructureToolsData WranglingTotal Wine & MoreInc.Benjamin Moore
Handle Missing Financial Input ValuesMedium
Practice
Practice drill

Use joins, CTEs, and CASE logic to flag and fill missing financial fields for Qlik planning records.

Data WranglingETLQualityQlik
Clean Event Statuses for AnalysisEasy
Practice
Practice drill

Clean raw status text with TRIM and LOWER, filter unusable rows, and count usable events by cleaned status.

Data WranglingETLQualityDatabricks
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5
Behavioral & Leadership14 questions · ~118 min
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6
More topics5 questions · ~42 min
Staying Current on Industry TrendsEasy

A practical approach for tracking industry trends, competitor moves, and market changes in a way that informs strategy decisions.

EstimationCompetitive AnalysisGrowth StrategyMachinify
Transformers Attention vs RNNsHard

Tests your foundational understanding of sequence modeling and attention math.

Neural NetworksLanguage ModelsDeep LearningMachinify
Upcoding Detection in Imbalanced ClaimsHard

Tests modeling strategies for extreme class imbalance and fraud detection in medical claims.

Feature EngineeringSupervised LearningMachinify
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