Data Engineering

Recent Data Engineering articles

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16 articles

Discover our latest articles and guides on Data Engineering

Apache Kafka streaming architecture with partitions and data flow diagram
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Apache Kafka for Data Engineers: Streaming, Partitions and Interview Questions

Apache Kafka deep dive for data engineers covering streaming architecture, partition strategies, consumer groups, and common interview questions with practical examples using Kafka 4.x and KRaft.

ETL vs ELT data pipeline architecture comparison diagram
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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
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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
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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.