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Data Engineer Interview Questions

Practice 9403 coding, system design and machine learning questions from 546 companies, sorted by role, topic and interview round. Every question has step-by-step hints, a code runner that supports 8 languages and an AI mentor; members also get the full solution walkthrough.

9403
Questions
546
Companies
11
Topics
8
Languages

Showing 1–6 of 6 results

  • DiscordHardData Engineer
    Design Video Call Analytics Tables

    This question evaluates data modeling and analytics competencies including event schema design, dimensional modeling (facts and dimensions), ETL/cleaning and deduplication, and time-windowed SQL aggregation.

    System DesignOnsite
  • DisneyEasyData Engineer
    Data Pipeline Design for Cloud and Hybrid On-Prem Environments on AWS and Azure

    A senior data engineering design question: build a data pipeline from operational sources to analytics on one cloud, then rework it for a hybrid on-premises and cloud environment and for both AWS and Azure. It tests tool selection and trade-offs, ingestion and storage design, data quality, security and portability.

    System DesignOnsite
  • MetaHardData Engineer
    Design batch and streaming ETL architecture

    Design batch and streaming ETL architecture evaluates requirements, scale assumptions, API/data design, architecture, trade-offs, failure modes, and rollout in a realistic interview setting. A strong answer states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.

    System DesignOnsite
  • MetaHardData Engineer
    Evaluate impact of short videos in feed

    This question evaluates competency in metrics definition, causal experimentation, product analytics, and feed system behavior within the System Design and Data Engineering domain.

    System DesignOnsite
  • NetflixHardData Engineer
    Design config rollout and click aggregation

    This problem tests your ability to design a global configuration distribution system combined with a high-throughput event processing pipeline to monitor rollout health.

    System DesignOnsiteDistributed SystemsReal-time AnalyticsEvent Streaming
  • ZooxMediumData Engineer
    Design teleoperations data models and pipelines

    This question evaluates competency in data modeling, real-time and batch pipeline architecture, telemetry ingestion, metrics design, and operational monitoring for teleoperations and autonomous vehicle stability.

    System DesignOnsite