D8Loop
Built because data engineering prep is fragmented
D8Loop exists to give candidates one place to practice coding, modeling, and pipeline thinking in the way interviews actually evaluate them.
Why it exists
Most tools isolate SQL, coding, or ETL visuals. D8Loop brings those layers back together in one coherent practice environment.
What it aims to feel like
Calm, technical, and trustworthy. It should help candidates think more clearly, not just answer faster.