Day 1 : Apache Spark Internals

I'm Varchasv, a Data Engineer working on enterprise data integration. Currently on a 90-problem challenge to level up my technical skills and switch to a more development-focused role. What I'm doing: Solving 2 Leetcode problems daily (SQL + DSA). Blogging about each problem. Building in public. My Goal - Land a better data engineering role by mid-2026. Follow my journey !!