The buildings and physical infrastructure for a new hyperscale data-center region are complete. Power is live and redundant, the cooling loops are balanced, the network fabric is up, and tens of thousands of machines are racked, cabled, and reporting heal... See more
December 7, 2025 Data Engineering Interview Prep Series — Part 6: Data Quality & Observability Questions You Must… How to prevent bad data from reaching dashboards, ML models, and business decisions By Ankur Gupta 2 min read Why Data Quality Matters i... See more
December 2, 2025 Data Engineering Interview Prep Series — Part 1: SQL Interview Challenges You Must Master in 2026 12 real SQL problems with solutions and explanations — designed exactly like interview rounds. By Ankur Gupta 2 min read Why SQL Still Domin... See more
April 3, 2026 One SQL Question That Fails 70% of Candidates A deceptively simple SQL question that exposes weak fundamentals — and how to answer it the way interviewers expect By Ankur Gupta 1 min read You can read the full article using this . Why This S... See more
December 6, 2025 Data Engineering Interview Prep Series — Part 5: Performance Optimization Questions You Must Master How to fix slow SQL queries, optimize PySpark jobs, and reduce cloud costs in data pipelines. By Ankur Gupta 2 min read Why Optimization I... See more
