coding question; variation of TwoSum - return the number of all pairs that sum to given number. e.g for [3,3,3,3] need to return 6
Senior Data Engineer Interview Questions
2,378 senior data engineer interview questions shared by candidates
How to process multiple files (JSON, ORC & parquet) In aZure stack.
first round .Hiring manager was not knowing what he is asking, Couldn't frame questions. . python and architectural level.
difference b/w primary and foreign key some simple queries how many cars are in your city total alcohol consumption in Delhi
There was an interactive live debugging session for a theoretical failing ETL job.
How would you insert new records into a table, and update existing data if the record had changed?
Banking application code verification, bug fixes and performance improvement.
Normal questions about your experience
1) Imagine you are data modeling Netflix and create the entities and relationships involved using a modeling tool. 2) follow a link to a sql tool which shows 4 tables. Run some provided sql to populate the tables, Create the sql to aggregate the data and provide a result set showing the top row.
PDFs cannot be attached, to show what must be the worst (vague, convoluted, terse and tricky) Spark SQL/Python json-in parquet-out tech assessments I've ever seen... and I've seen a lot of them.
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