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Iris software Interview Questions

The questions to prepare for Iris software interviews, across all roles. Questions from real interview reports rank first. Updated daily.

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1
SQL & Data ManipulationStart here. 4 questions · ~39 min
Top Customers SQL QueryEasy
Practice

Aggregate customer sales volume and return Pyramid Consulting's top 10 customers in descending order.

RankingGroup ByAggregationsIris software
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2
Coding4 questions · ~39 min
Find Second Largest in ArrayEasy
Practice

Scan the array once to track the largest and second largest distinct values in O(n) time.

ArraysSortingGreedyIris software
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3
Execution4 questions · ~39 min
Clarify Ambiguous Project RequirementsMedium

Explain how you turn vague requirements into aligned scope, clear decisions, and shared understanding for the team.

ClarityDealing With AmbiguityProject ManagementIris software
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4
Machine Learning4 questions · ~39 min
Bias Variance Tradeoff BasicsEasy

Explain how bias and variance affect generalization, and how model complexity changes the balance.

Cross-ValidationBias-Variance TradeoffSupervised LearningIris software
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5
Product Sense3 questions · ~29 min
Design User Engagement MetricMedium

Tests metric design and operationalization for measuring FIRSTNET GLOBAL user engagement.

product metricsdesignuser engagementIris software
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6
A/B Testing & Experimentation3 questions · ~29 min
Common A/B Testing PitfallsMedium

Tests awareness of experimental threats like bias, leakage, and incorrect randomization.

A/B TestingIris software
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7
More topics28 questions · ~274 min
Time Series Analysis ExperienceMedium

Tests your ability to model temporal patterns and handle time-dependent data.

ForecastingData AnalysisTime SeriesIris software
Symmetric vs Asymmetric EncryptionMedium

Tests your understanding of cryptography fundamentals and when to apply each approach.

encryptionIris software
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