Snowflake Computing Data Engineer Interview Questions

The questions to prepare for a Snowflake Computing Data Engineer interview. Questions from real interview reports rank first. Updated weekly.

Optimizing Large Analytical SQL Queries

Hard

Explain how to diagnose and optimize a slow analytical query on a multi-terabyte event table using SQL-aware tuning strategies.

JoinsData WranglingCTEs

Snowflake Computing

Optimize SQL at One Billion Rows

Hard

Tests your ability to improve query performance using Snowflake-relevant SQL and execution strategies.

performancesqloptimization

Snowflake Computing

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Two Sum Index Lookup

Easy

Find two indices in an array whose values sum to a target using a hash table in O(n) time.

Hash TablesArraysTwo Pointers

Snowflake Computing

Merge Two Sorted Linked Lists

Medium

Tests pointer manipulation, iteration logic, and correctness for linked list problems.

RecursionLinked ListsTwo Pointers

Snowflake Computing

Kth Largest in Unsorted Array

Medium

Tests your ability to select or rank elements efficiently and choose an appropriate algorithm.

ArraysSorting

Snowflake Computing

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Python Scripts vs Stored Procedures

Medium

Tests your ability to choose the right execution layer for performance, maintainability, and governance.

performancedatabasepython

Snowflake Computing

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