Daetama

Daetama is a platform built specifically for data science career preparation. It provides a library of SQL questions that mimic real interview problems from top tech companies, allowing users to practice directly in their browser without needing to set up local databases or CSV files. The platform tracks submissions and has built a community where data professionals can sharpen their skills.

The service stands out by focusing exclusively on data science interview preparation with realistic questions. It offers over 100 SQL problems and is expanding into full data science courses covering A/B experiment design, product sense, linear modeling, and statistics. The platform operates on a simple subscription model and releases weekly updates based on user requests, creating an actively developed learning environment.

This tool benefits anyone preparing for data science or data analyst interviews, particularly those targeting companies like Amazon, Google, Meta, and Goldman Sachs. It's useful for brushing up on SQL skills, learning practical data science techniques, and connecting with job opportunities through their upcoming job board. With 80,000+ question submissions and high user satisfaction ratings, it has become a trusted resource in the data science community.