Optum Technology Data Engineer Interview Questions

The questions to prepare for a Optum Technology Data Engineer interview. Questions from real interview reports rank first. Updated weekly.

Design SCD Type 1 and 2

Medium

Design and implement SCD Type 1 and Type 2 dimensions with history tracking, idempotent loads, and data quality controls.

slowly changing dimensionsData ModelingBackfilling

Optum Technology

Cloud Pipeline Data Security

Medium

Key security considerations for a cloud data pipeline, from ingestion through storage, orchestration, and monitoring.

InfrastructureGovernanceETL

Optum Technology

More Pipelines questions with a free account

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Clustered vs Non-Clustered Indexes

Medium

Explain how clustered and non-clustered indexes differ in storage, lookup behavior, and query performance.

JoinsData Wrangling

Optum Technology

Patient Claims Schema Design

Hard

Tests your ability to model healthcare claims data with strong integrity constraints and normalization choices.

normalizationdata integrityData Modeling

Optum Technology

Snowflake Partitioning and Clustering

Medium

Tests your ability to optimize Snowflake performance and cost using clustering and partitioning strategies.

Performance Tuningpartitioning

Optum Technology

More SQL & Data Manipulation questions with a free account

Parse Nested Healthcare Claims JSON

Medium

Tests your ability to build robust Python ETL logic for nested healthcare claim data.

json parsingData Wranglingpython

Optum Technology

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