Data Engineering

Recent Data Engineering articles

DATA
3 articles

Discover our latest articles and guides on Data Engineering

ETL vs ELT data pipeline architecture comparison diagram
DATA

ETL vs ELT in 2026: Data Pipeline Architecture Explained

ETL vs ELT comparison for modern data pipelines. Understand the architectural differences, performance trade-offs, and when to use each approach with Snowflake, BigQuery, and dbt in 2026.

Apache Spark with Python data pipeline tutorial illustration showing data flow and processing stages
DATA

Apache Spark with Python: Building Data Pipelines Step by Step

A hands-on PySpark tutorial covering DataFrame operations, ETL pipeline construction, and Spark 4.0 features. Includes production-ready code examples for data engineers preparing for technical interviews.

Data engineering interview questions covering pipelines, SQL, and system design in 2026
DATA

Top 25 Data Engineering Interview Questions in 2026

The 25 most asked data engineering interview questions in 2026, covering SQL, data pipelines, ETL/ELT, Spark, Kafka, data modeling, and system design with detailed answers.