DATA ENGINEERING & APPLIED AI

Go deeper.
Build better.

Understand data systems. Sharpen your skills. Put ideas into practice.

Written & built by ShafiData engineer & technical lead with FAANG experience

Case Studies

5 studies

What breaks in production, why it breaks, and how to design for it.

8 guides

Build technical depth and practice explaining your decisions.

5 tools

Explore datasets and try interactive product prototypes.

COMPLETE INTERVIEW PREP

Full study guides, three complete interviews per round, and one-page review sheets for final recall.

ROUND 1
Database fundamentals
Hiring manager / Ownership / Deliver Results
Full guide + 3 mocks (11h 16m)Read sheet One-page PDF
ROUND 2
Behavioral depth
Bar Raiser / Dive Deep / Highest Standards / Customer Obsession
Full guide + 3 mocks (8h 11m)Read sheet One-page PDF
ROUND 3
Modeling and performance
Data models / Tuning / Bias for Action
Full guide + 3 mocks (11h 02m)Read sheet One-page PDF
ROUND 4
SQL under pressure
SQL / Learn and Be Curious / Earn Trust
Full guide + 3 mocks (11h 50m)Read sheet One-page PDF
ROUND 5
Python and engineering judgment
Python / Invent and Simplify / Have Backbone; Disagree and Commit
Full guide + 3 mocks (11h 50m)Read sheet One-page PDF

Original practice material. Round labels are preparation bundles; confirm your scheduled agenda.