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Complete Genomics Interview Questions

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

50questions
~7htotal time
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1
Machine LearningStart here. 4 questions · ~32 min
Handling Missing Values in MLEasy

Explain practical strategies for handling missing values in a supervised learning workflow, from diagnosis to modeling and validation.

Cross-ValidationFeature EngineeringRegularizationComplete Genomics
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2
Statistics & Probability7 questions · ~57 min
Reconciling Conflicting Statistical EvidenceMedium

Explain how to reconcile conflicting statistical signals by checking sampling, bias, uncertainty, and comparability.

CorrelationCausal InferenceData WranglingComplete Genomics
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3
Behavioral & Leadership30 questions · ~244 min
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4
More topics9 questions · ~73 min
Manage a Long Sales CycleMedium

Manage a complex sale by requalifying often, multi-threading stakeholders, and controlling requirement drift with a clear mutual plan.

Stakeholder ManagementCommunicationPrioritizationComplete Genomics
Dataset Missing Values ApproachEasy

Tests practical data cleaning decisions and methods for handling missingness.

Data WranglingQualityComplete Genomics
Fault Tolerance for Sample SafetyHard

Tests your reliability engineering practices for preventing failures that could impact valuable biological samples.

Risk Managementfault toleranceComplete Genomics
Multithreading for Real-Time ControlHard

Tests your concurrency design skills and your ability to keep real-time hardware control correct and safe.

multithreadingreal-time systemsrace conditionsComplete Genomics
Computing Weighted Sums From MeasuresMedium

Tests your ability to reason about numeric computation and design an algorithm from partial information.

ArraysComplete Genomics
Refactoring for MaintainabilityMedium

Tests your refactoring approach and ability to apply design patterns for long-term maintainability.

refactoringmaintainabilitydesign patternsComplete Genomics
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
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
Cleaning a Messy DatasetMedium
Practice
Practice drill

Filter invalid game events and normalize event names using PostgreSQL string and null handling.

missing valuesdata cleaningnull handlingQuantiumScopelyCarvana
Data Cleaning and PrepMedium
Practice
Practice drill

Prepare valid encounter records by trimming text, excluding missing values, and removing invalid charges.

missing valuesdata cleaningData WranglingMassachusetts General HospitalCognizantDataVisor
The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.