HCLTech

Global IT services and consulting company.

4 Rounds ~21 Days Medium
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The Interview Loop

Recruiter Screen (30 min)

Standard fit check, behavioral questions, and resume overview.

Technical Loop (3-4 Rounds)

Deep dive into domain knowledge, coding, and system design.

Interview Question Bank

Data Scientist Coding medium

Write a SQL query to calculate the 7-day rolling average of daily sales for an e-commerce platform.

#SQL #Window Functions #Time Series
Data Scientist Coding medium

Write a SQL query using window functions to find the second highest salary in each department.

#SQL #Window Functions #Data Aggregation
Data Scientist Coding medium

Write a SQL query to find the top 3 employees with the highest sales in each department.

#SQL #Window Functions #Ranking
Data Scientist Coding easy

Write a SQL query to find all duplicate records in a table based on an 'email' column, and return the email along with the count of duplicates.

#SQL #GROUP BY #HAVING

Difficulty Radar

Based on recent AI-sourced data.

Meet Your Interviewers

The "Standard" Interviewer

Senior Engineer

Focuses on core competencies, system constraints, and clear communication.

Simulate

Unwritten Rules

Think Out Loud

Always explain your thought process before writing code or drawing architecture.

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