Uber

Streaming and sessionization show up early.

4 questions

Python · 3SQL · 1

Status	Title	Technology	Topic	Acceptance	Difficulty
○	7.Flatten nested JSON into a fact table	Python	Data modeling	—	Medium
○	18.Gaps and islands in device uptime	SQL	Window functions	—	Hard
○	22.Merge overlapping time ranges	Python	Aggregation	—	Medium
○	24.Retry with exponential backoff	Python	Data modeling	—	Medium

Community-reported interview topics. Not official Uber questions and no affiliation is implied.