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NerdLevelTech
Intermediate

Data Engineer Interviews: SQL, Pipelines & Big Data Systems

Master data engineering interviews with deep SQL, data modeling, ETL pipelines, Spark, streaming systems, and behavioral preparation for $150K-$300K+ roles.

100 min24 lessons6 modulesCareer

What you'll learn

  • Solve complex SQL problems including window functions and CTEs
  • Design dimensional and normalized data models for analytics
  • Build and optimize ETL/ELT pipelines with modern tools
  • Apply Spark and streaming architecture patterns
  • Navigate behavioral interviews with impactful stories

Course Content

  1. Data Engineer Interview Landscape

    4 lessons · 12 min
    • Data Engineering Role TypesNo signup3 min
    • Locked until you enrollInterview Formats & Rounds3 min
    • Locked until you enrollCompany Expectations by Stage3 min
    • Locked until you enrollCareer Levels & Compensation3 min
    • Quiz: Module 1: Data Engineer Interview Landscape

  2. SQL Mastery & Query Optimization

    4 lessons · 16 min
    • Locked until you enrollAdvanced SQL Patterns4 min
    • Locked until you enrollQuery Optimization & Execution Plans4 min
    • Locked until you enrollIndexing Strategies4 min
    • Locked until you enrollCommon Interview SQL Patterns4 min
    • Quiz: Module 2: SQL Mastery & Query Optimization

  3. Data Modeling & Warehousing

    4 lessons · 16 min
    • Locked until you enrollDimensional Modeling Fundamentals4 min
    • Locked until you enrollModern Warehouse Architectures4 min
    • Locked until you enrollData Lakes & Lakehouse Architecture4 min
    • Locked until you enrollSlowly Changing Dimensions4 min
    • Quiz: Module 3: Data Modeling & Warehousing

  4. ETL Pipelines & Orchestration

    4 lessons · 16 min
    • Locked until you enrollETL vs ELT Patterns4 min
    • Locked until you enrollPipeline Orchestration Tools4 min
    • Locked until you enrolldbt for Data Transformations4 min
    • Locked until you enrollData Quality & Testing4 min
    • Quiz: Module 4: ETL Pipelines & Orchestration

  5. Big Data & Streaming Systems

    4 lessons · 20 min
    • Locked until you enrollApache Spark Architecture & Fundamentals5 min
    • Locked until you enrollPySpark Interview Coding Patterns5 min
    • Locked until you enrollStreaming Architectures: Kafka, Kinesis & Event Streaming5 min
    • Locked until you enrollReal-Time Processing: Flink, Spark Streaming & Kafka Streams5 min
    • Quiz: Module 5: Big Data & Streaming Systems

  6. Behavioral & Negotiation

    4 lessons · 20 min
    • Locked until you enrollData Engineer Behavioral Interview Questions5 min
    • Locked until you enrollSystem Design Communication Skills5 min
    • Locked until you enrollCareer Growth & Technical Leadership5 min
    • Locked until you enrollSalary Negotiation for Data Engineers5 min
    • Quiz: Module 6: Behavioral & Negotiation