BigData Factory

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Welcome to BigData Factory — where data engineering meets storytelling. I break down Big Data systems, pipelines, cloud architecture, data engineering career...

Latest Videos

Will AI Replace Data Engineers What You Should Learn in 2026 #dataengineering #bigdata #sql #ai

End to End Medallion Architecture Data Engineering Project Databricks + Spark SQL #dataengineering

SQL Joins Interview Questions NULLs, Duplicates & Row Count Traps #dataengineering #sql #bigdata

Medallion Architecture Explained Bronze, Silver, Gold for Data Engineers #bigdata #databricks #sql

SQL Window Functions You MUST Know to Crack Interviews

Fractal Data Engineer Interview Questions PySpark + SQL

End-to-End Clickstream Data Engineering Project Explained ( Spark + AWS + SQL)

How to Explain Your Data Engineering Project in Interviews (Avoid This Mistake)

Data Engineer vs Data Analyst (2026) — Which Pays More

Your Airflow DAG Won’t Run Fix It in 5 Minutes!

Why Databricks is Mandatory for Data Engineers (2026)

Databricks Interview Questions That ACTUALLY Get Asked (Real Scenarios)

1 Data Engineering Project That Gets You Interviews (Spark + AWS + SQL)

Mock Data Engineer Interview SQL, Spark, Project & AWS Answers

Data Engineer Resume 6 Mistakes That Get You Rejected

Lloyds Data Engineer Interview Real Spark + Python + SQL Questions

Data Engineer Interview Prep 7-Day Plan (Spark + SQL + AWS)

Nielsen Data Engineer Interview Real Spark + Python + SQL Questions (My Experience)

Real Optum Data Engineer Interview Spark & SQL Questions They Actually Asked

Confused Which IT Domain to Choose Watch This Before You Waste 6 Months

Top Spark Theory Real Data Engineer Interview Questions You Must Know Interview Prep

SQL Interview Questions for Data Engineer Asked at Annalect

Real SQL Interview Question That Stumps 90% of Data Engineers

Data Engineer Roadmap 2026 Skills You ACTUALLY Need (SQL, Spark, Databricks, AI)

LTIMindtree Data Engineer Interview Questions Real PySpark Hands-On Experience

Real Deloitte Data Engineer Interview Questions Spark & SQL (Asked in My Interview)

Apache Spark Partitions Explained The #1 Reason Your Spark Job Is Slow

Spark Job Stuck on 1 Task Fix Data Skew (Spark UI + AQE + Salting)

Why Wide Transformations make your Spark jobs slow (and how to fix it)

Small Files Problem in Apache Spark Causes, Impact & Solutions