Huge boon to productivity when coupled with Phoenix. Moreover, it has made background jobs and all the unseen aspects of a business easily abstracted.

For math calculation and solve partial differential equation numerically.

Knowledge collection, collation, and enrichment. Business logic.

I used to be an EE major so you can see where that comes from.

For some internal tools like our email deliverability monitor

Prediction, modelling, and simulation for Solar predictions

language used by phoenix framework

Elixir and Phoenix are awesome.