📰 Dev.to · Gowtham Potureddi

Pydantic for Data Engineering: Schema Validation in ETL & Pipeline Contracts

Apache Beam Programming Guide: PCollections, Windowing, Runners (Dataflow / Flink)

Flink CDC Connectors: Schema-First Streaming Ingest at Scale

Apache Pulsar vs Kafka for Data Engineering: Geo-Replication, Tiered Storage & Functions

Kafka Connect Deep Dive: Source, Sink, SMTs, Schema Registry & Idempotent Writes

MySQL Interview Questions & Answers: Top Patterns for Data Engineers

CREATE TABLE & ALTER TABLE in SQL: Schema Design for Data Engineers

SQL PIVOT and UNPIVOT: Reshape Rows ↔ Columns for Analytics

SQL Date Functions: DATEDIFF, DATE_FORMAT, EXTRACT & Date Math

GROUP BY and HAVING in SQL: Aggregation Patterns for Interviews

chime Data Engineering Interview Questions: Full Prep Guide

Agoda Data Engineering Interview Questions: Full Prep Guide

Tiger Analytics Data Engineering Interview Questions: Full Prep Guide

Roblox Data Engineering Interview Questions: Full DE Prep Guide

Tesla Data Engineering Interview Questions: Full DE Prep Guide

Exodus Point Data Engineering Interview Questions: Full DE Prep Guide

Data Warehouse Design for Data Engineering Interviews: A Beginner's Guide to Fact Tables, Star Schemas, and Grain

Snowflake for Data Engineering Interviews: A Beginner's Guide to the Cloud Data Warehouse

Amazon Redshift for Data Engineering — Columnar Storage, MPP, COPY, Distribution Keys, Spectrum

Data Lake Architecture for Data Engineering Interviews

Data Engineering Roadmap for Freshers (2026): A 13-Step Beginner's Guide from SQL to Your First Data Engineering Job

SQL Interview Questions for Data Engineering

COALESCE in SQL — First Non-NULL, LEFT JOIN Defaults, and Interview Patterns

Facebook Data Engineering Interview Questions & Prep Guide