Shameless self promotion and (maybe) useful insights for architects
OVH wrote (with my help) an article about my work as an IT architect at Wimi. You can find in it some details about how Wimi works, from backstage.
It's somewhat outdated now, but I plan to update it soon and will keep you posted !
We are now powered by Saltstack (instead of Puppet) and ZeroMQ (instead of RabbitMQ) for example.
EDIT : you can find an updated version inside the OVH Cookbook, which is really interesting by the way.