Celebal Technologies Data Engineer interview experience

No offer

Medium

Negative

BengaluruPosted Nov 2025 · Candidate report, summarized by Dataford

My interview journey started with resume shortlisting and then an assessment that was very SQL-heavy.

I remember it as a mix of multiple SQL questions and Python questions along with a chunk of MCQs, and I had to share my screen to solve the coding parts in the editor while they watched.

The technical round(s) focused hard on SQL depth. I had to work through joins, window functions, grouping and filtering logic (including things like rank-style and group-by/having style queries). Alongside that, I got Python questions that ranged from string handling and slicing to the kind of core OOP / practical coding concepts they expect for a data engineer, plus some Pyspark tasks like read/write CSV

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