Top 49
Prep plan
Updated weekly · Last refresh Oct 17

Optum Technology Machine Learning Engineer Interview Questions

The questions to prepare for a Optum Technology Machine Learning Engineer interview. Questions from real interview reports rank first. Updated daily.

49questions
~7htotal time
Track your progressSign up free to work through all 49 questions and resume where you left off.
Start practicing free →
1
Machine LearningStart here. 10 questions · ~80 min
Fairness and Interpretability in Black-Box ModelsMedium

Balance predictive performance with fairness checks and interpretable explanations when using complex black-box models.

fairnessblack-box modelsinterpretabilityOptum Technology
Random Forest vs Gradient BoostingMedium

Compare Random Forest and Gradient Boosting, then choose the right ensemble for a supervised learning task.

Ensemble MethodsBias-Variance TradeoffSupervised LearningOptum Technology
More Machine Learning questions with a free account
2
Model Evaluation5 questions · ~40 min
Monitor Model Performance Over TimeMedium

Approach for continuously monitoring a deployed model and keeping performance stable as data changes.

CalibrationAccuracyThreshold TuningOptum Technology
Choose Classification MetricsMedium

Choose the right classification metrics, and explain when precision, recall, and F1 score matter most.

F1 ScorePrecisionRecallOptum Technology
More Model Evaluation questions with a free account

Sign up to see every question

Create a free account to unlock this list and practice real interview questions.

Get my prep plan
3
Pipelines11 questions · ~88 min
Versioning Datasets and ModelsMedium

Best practices for reproducible dataset and model versioning in shared ML pipelines.

Data QualityToolsAutomationOptum Technology
MLOps Pipeline ReproducibilityMedium

Discuss how to build ML pipelines that are repeatable, traceable, and observable across training and deployment.

model reproducibilitydata pipelinesmlopsOptum Technology
More Pipelines questions with a free account
4
System Design19 questions · ~152 min
Design a Low Latency Inference PlatformHard

Design a low latency ML inference platform for high-frequency online predictions with strict response times and evolving model features.

high-frequency requestslatencysystem architectureOptum Technology
More System Design questions with a free account
5
Behavioral & Leadership3 questions · ~24 min
More Behavioral & Leadership questions with a free account
6
More topics1 question · ~8 min
Secure Healthcare Data AccessHard

Assesses your ability to design secure, compliant infrastructure for healthcare ML platforms.

data securityaccess controlComplianceOptum Technology
The finish line: interview-readyComplete all 49 questions to finish this plan.