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> On the other end of the spectrum are the influx of "data engineers" with basic to intermediate knowledge of HDFS, streaming data or various other NoSQL techno
by manish_gill 8y ago
> On the other end of the spectrum are the influx of "data engineers" with basic to intermediate knowledge of HDFS, streaming data or various other NoSQL technologies. They often know less about raw SQL than even junior engineers because SQL is below their high-power big data tools.
I always ask a basic SQL question (involving sorting/grouping and one simple join) in my interviews for backend and/or data. IMO if you are calling yourself a Data Engineer and do not know SQL, then you haven't really worked with data, you've mostly just worked on data infrastructure.
- slap_shot 8y agoIt's mandatory. It's like saying you understand calculus but not being able to do algebra. I interview a lot of data engineers/analytics engineers and I always start with SQL. If you can't grasp SQL, you're in for a very bad time.