Top 10 Data Engineering Interview Prep Tools (2026 Guide for SQL, ETL & System Design)

📰 Dev.to · Hadil Ben Abdallah

Get ready for data engineering interviews with top 10 prep tools for SQL, ETL, and system design

intermediate Published 28 Apr 2026

Action Steps

Explore online platforms like LeetCode, Pramp, and Glassdoor to practice SQL and system design questions
Use ETL tools like Apache Beam, Apache NiFi, or AWS Glue to practice data pipeline development
Practice system design with tools like Draw.io, C4, or SystemDesign Primer
Focus on SQL skills with tools like SQL Fiddle, DB<>fiddle, or Mode Analytics
Build a personal project to demonstrate data engineering skills, such as a data warehouse or ETL pipeline

Who Needs to Know This

Data engineers and aspiring data engineers can benefit from these tools to improve their interview skills and knowledge

Key Insight

💡 Practicing with real-world tools and platforms is key to acing data engineering interviews