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HNTB Interview Questions

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

50questions
~7htotal time
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1
CodingStart here. 11 questions · ~94 min
Algorithm Coding ExerciseEasy
Practice

Count how many contiguous subarrays sum to a target using prefix sums and a hash map.

Hash TablesMathArraysHNTB
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2
Execution13 questions · ~111 min
Recover a Project Off TrackEasy

Explain how you would recover a project that is slipping, balancing risks, scope, stakeholder expectations, and delivery trade-offs.

Rollback PlanTrade-offsRisk AssessmentHNTB
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3
Product Sense4 questions · ~34 min
Balance User Needs and GoalsMedium

Explain how you balanced user needs with business goals in a product decision, including trade-offs and outcomes.

Feature PrioritizationUser NeedsValue PropositionHNTB
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4
Metrics5 questions · ~43 min
Assess Marketing Effectiveness With KPIsEasy

Connect marketing KPIs to business outcomes using a clear hierarchy from spend and acquisition to conversion and ROI.

Lagging IndicatorsKPIsLeading IndicatorsHNTB
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5
Strategy4 questions · ~34 min
Salary ExpectationsEasy

Tests compensation alignment for the Research Scientist role.

EstimationPricing StrategyHNTB
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6
System Design6 questions · ~51 min
Recommendation System for Planning ToolHard

Tests applied ML/system design for ranking or recommendations in a public-facing product.

ML RankingRetrievalRecommendation SystemsHNTB
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7
More topics7 questions · ~60 min
Marketing Campaign A/B Test DesignMedium

Design a marketing campaign experiment with a pre-registered metric plan, power calculation, and ship rule that respects guardrails.

ExperimentationHypothesis TestingA/B TestingHNTB
End-to-End Serving, Batch, MonitoringHard

Tests system design across real-time and batch workloads with strong operational monitoring.

Batch ProcessingOrchestrationQualityHNTB
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Identify Funnel Bottlenecks in OnboardingHard
Practice
Practice drill

Use joins, CTEs, and aggregations to find the weakest step in an onboarding funnel and estimate lost conversions.

Funnel AnalysissqlDiagnosisAtlassianRevolut
Second Highest Trader SalaryEasy
Practice
Practice drill

Find the second highest distinct salary from a single table using basic PostgreSQL ordering and limiting.

SubqueriesRankingSortingeClinicalWorksInformaticaSpectraforce Technologies
SQL Top N QueryEasy
Practice
Practice drill

Return the 10 most-viewed active California physician profiles using WHERE, ORDER BY, and LIMIT.

RankingSortingAggregationsDoximity
The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.