What technologies and what engine do applications like uber run on?

Question

Software design

Good day to all!
There was a following question and it will be interesting to know your opinion.
On what engine and with the help of what technologies is uber made? are there similar open-source projects? I would like to understand the architecture of the application

Answer 1

There are 2 excellent articles where everything is described in mega-detail.
https://eng.uber.com/tech-stack-part-one/
https://eng.uber.com/tech-stack-part-two/
Some of their solutions are posted in open-source uber.github.io