Analysis and problem solving.
Sr Data Engineer Interview Questions
2,556 sr data engineer interview questions shared by candidates
Design big Data solution for 2 streaming dataset using any Cloud or open source tech
Craft demo mostly demonstrating spark working knowledge, distributed systems.
Sort 2 already sorted arrays into one array
Design LRU cache
What are the different types of slowly changing dimensions?
Implement scalable topK words for Amazon product descriptions using count-min sketch.
Questions are mostly on optimization and product sense
About project design and implementation
A: They asked me to walk through a real-world Spark use case I’d implemented—building a streaming ETL for clickstream data—detailing how I managed stateful windowed aggregations, tuned `spark.sql.shuffle.partitions`, and fixed data skew with a custom partitioner.
Viewing 2021 - 2030 interview questions