Spotify sounds very interesting to me. But I don't work there, so cannot really tell if it really works as they describe.
https://labs.spotify.com/2014/03/27/spotify-engineering-cult... https://labs.spotify.com/2014/09/20/spotify-engineering-cult...
https://labs.spotify.com/2014/03/27/spotify-engineering-cult... https://labs.spotify.com/2014/09/20/spotify-engineering-cult...
These kinds of problems with Spotify, SpotifyHelper, SpotifyWebHelper etc. have been well-documented for years. It would kill me to work for a company with such low engineering standards.
[1]: https://www.youtube.com/channel/UCO1cgjhGzsSYb1rsB4bFe4Q