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C2S Technologies Data Engineer interview questions

based on 1 rating - Updated 2 May 2025

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Data Engineer Interview

2 May 2025

Anonymous employee

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Application

I applied through other source. The process took 2 weeks. I interviewed at C2S Technologies (Bellevue, WA) in May 2023

Interview

The interview process consisted of two rounds. The first round focused on SQL queries, testing my ability to manipulate and analyze data effectively. The second round included Python and LeetCode-style coding questions, emphasizing problem-solving skills and algorithmic thinking. Both rounds were technical and assessed hands-on proficiency.

Interview questions [1]

Question 1

One key question they asked was to write a SQL query to find the second highest salary from an employee table, which tested both knowledge of subqueries and handling NULL or duplicate values.

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C2S Technologies

C2S Technologies Data Engineer interview questions

Difficult interview difficulty

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Data Engineer Interview

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