Interview questions
Preparing for a data engineering interview at Nihilent? This page contains 30 real interview questions sourced from verified Nihilent interview experiences. Questions are sorted by frequency — the ones asked most often appear first.
Nihilent data engineering interviews typically focus on SQL, Spark/Big Data, and Cloud/Tools. There's a solid mix of fundamental and advanced questions, making it accessible for candidates at multiple experience levels.
Use the difficulty filters above to focus your preparation. For each question, attempt your own answer first, then compare with our expert solution. You can also practice these questions in our AI Mock Interview Coach for real-time feedback.
Explain the differences between Repartition and Coalesce. When would you use each?
Explain the types of triggers in ADF, including schedule, tumbling window, and event-based triggers.
Joins and window functions - INNER, LEFT, RIGHT, FULL OUTER, ROW_NUMBER(), RANK(), DENSE_RANK()
Can you explain the architecture of Apache Spark and its components?
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