How PepsiCo uses Elixir
PepsiCo’s search-marketing system reads data from Snowflake, processes it in Elixir and stores it in PostgreSQL or Apache Druid. Phoenix then serves that data to internal teams and connects to partner APIs.
The published account covers both Search Marketing and Sales Intelligence teams. It shows Elixir being used for internal data products, rather than claiming that the whole company runs on one language.
Source
Read the engineering story. This profile describes the implementation discussed in that source.