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Tech(x) Interview Questions

The questions to prepare for Tech(x) interviews, across all roles. Questions from real interview reports rank first. Updated daily.

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1
CodingStart here. 4 questions · ~39 min
K Most Frequent ElementsEasy
Practice

Return the k most frequent array values using frequency counting and a bounded min-heap.

Hash TablesArraysHeapTech(x)
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2
SQL & Data Manipulation4 questions + 2 drills · ~59 min
Top 5 Users by ActivityMedium
Practice

Identify Tech(x)'s five most active users with a date-filtered LEFT JOIN and grouped activity counts.

sql queryData Analysisuser engagementTech(x)
Funnel Conversion Rate SQLMedium
Practice
Practice drill

Calculate the percentage of eligible users who progress from signup to assessment_started.

JoinsConversion Ratesql queryHHackerRank
Top Drivers by Delivery SpeedMedium
Practice
Practice drill

Identify the fastest 10% of drivers by average completed-delivery time using joins, aggregation, and ranking.

JoinsData Manipulationsql queryDoorDash
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3
Execution4 questions · ~39 min
Managing Critical Cross-Team DependencyMedium

Explain how you would manage a project at risk due to a slipping dependency owned by another team.

Risk AssessmentDependenciesScope ManagementTech(x)
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4
A/B Testing & Experimentation3 questions · ~29 min
Design Test for New FeatureMedium

Design an A/B test for a new platform feature, including success metrics, power, guardrails, and a clear ship decision.

experiment designfeature evaluationA/B TestingTech(x)
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5
Statistics & Probability4 questions · ~39 min
Statistical Significance in Hypothesis TestingEasy

Explain what statistical significance means and why it matters when interpreting experimental or analytical results.

Hypothesis TestingData AnalysisStatistical SignificanceTech(x)
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6
Metrics4 questions · ~39 min
Define Success for a ProjectEasy

Define what success means for a project using clear KPIs, a north star, and supporting metrics.

KPIsSuccess CriteriaDiagnosisTech(x)
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7
More topics27 questions · ~264 min
Why You Want to Work HereEasy

Explain why Baird, its Research platform, and the Research Analyst role align with your experience and long-term goals.

Product-Market Fitbrand cultureBusiness AcumenTech(x)
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 PropositionTech(x)
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The finish line: interview-readyComplete all 50 questions plus 2 hands-on drills to finish this plan.