Prepare for the interview you actually have.

1. 1Recruiter Screening
2. 2SQL Technical Screen
3. 3Python/Coding Technical Screen
4. 4Onsite Round 1: Data Modeling & Schema Design
5. 5Onsite Round 2: ETL Pipeline Design & Data Architecture
6. See all 7 rounds in this guide

• Statistics Fundamentals55 lessons
• Machine Learning Foundations57 lessons
• System Design Fundamentals55 lessons
• SQL & Database Fundamentals50 lessons
• Product Management Fundamentals57 lessons
• LLM Engineering67 lessons

def two_sum(nums, target):
    seen = {}
    for i, n in enumerate(nums):
        if target - n in seen:
            return [seen[target - n], i]
        seen[n] = i

• Problem solving4 of 5
• Communication3 of 5

• A full sample answerWhat a strong answer covers, step by step.
• HintsA nudge in the right direction before you read the answer.
• Follow-up questionsWhat the interviewer is likely to ask next.
• A difficulty levelEasy, medium or hard, so you can start where you are.