Have you worked with Kafka?
Middle+
200
Data Engineer
671
0
Tell about your overall experience and what you have studied.
Middle
197
How does Hive differ from Impala?
Middle+
197
Why did you decide to leave your current project? What is unsatisfactory there?
Middle+
193
Why are you leaving your current job?
Middle+
190
Have you had ad-hoc tasks with a clear technical assignment, and how do you feel about ad-hoc requests and changing priorities?
Middle
188
What are your expectations from a new project?
Middle+
186
Have you built dashboards and worked with data visualization tools (BI tools)?
Middle
184
Are you familiar with OLAP cubes? When working with multidimensional data similar to a pivot table in Excel but for faster interaction with large data volumes.
Middle
175
Are there any functions and features in Greenplum that are not in regular MySQL and other dialects?
Middle
173
What did you usually do in PostgreSQL? Did you create indexes and what else did you do inside the database?
Middle+
170
What is the difference between VACUUM and VACUUM FULL in PostgreSQL?
Middle+
167
Tell us how you used Hadoop/HDFS/Hive.
Middle+
163
We have an ORDER BY by the number of orders, with two orders of 5, and two orders of 3. How will RANK() and DENSE_RANK() behave?
Middle
159
How was the custom Airflow operator implemented: through BashOperator?
Middle+
159
In which cases is Nested Loop Join most suitable?
Middle+
158
In what order are the main operations performed in SQL: SELECT, FROM, etc.?
Middle
158
Are you currently attending interviews? Do you have offers or are you in final stages, especially in banks?
Middle+
151
Have you faced conflicts within the team or with a manager? How did you handle it? Provide examples.
Middle+
140
Why is MergeTree needed in ClickHouse?
Middle+
137