Go on, feast your eyes on... HMRC's backend: 4,000 IT staff, its hookup with AWS and more
https://www.theregister.co.uk/2019/04/02/why_the_tax_man_needs_4000_it_staff/
OpenInfra Days UK 2019 The British tax man loves the cloud, but anyone who thinks public infrastructure can be run by a skeleton crew should think again: HMRC has no fewer than 4,000 IT staff who deliver around 140 digital services.
... people were really reluctant to do on-call because of the problems we had
