Data Engineer Interview Cheat Sheets

Pass your next data engineer interview with focused prep materials. These sheets cover the questions, patterns, and deep-dive topics most commonly asked in 2026 - at FAANG, fintech, and high-scale SaaS companies.

General interview sheets

• Data Engineering Interview Questions - broad-coverage, worked answers
• Top 25 SQL Interview Questions - SQL patterns for DE roles
• Top 30 Snowflake Interview Questions - platform fundamentals

Snowflake deep-dive interview sheets

• Streams & Tasks
• Dynamic Tables
• Snowpark
• Data Sharing & Marketplace
• Iceberg Tables
• Cortex AI & ML
• Snowpipe Streaming & Kafka
• Governance & Masking
• Cost Optimization
• Query Tuning
• Replication & Failover
• Semi-Structured Data
• Stored Procedures & UDFs
• External Functions & Integrations

14-day study plan

Work through the full 14-day prep plan - 2 hours/day covering SQL, Python, modeling, orchestration, Snowflake, Spark, streaming, cloud, system design, and behavioral.

Related categories

Explore SQL cheat sheets, architecture, and the full cheat sheet library.

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