Not sure exactly but any job ads I've seen for the likes of Monzo and Starling talk about backend engineers that have a deep knowledge of CI/CD and you don't do

Not sure exactly but any job ads I've seen for the likes of Monzo and Starling talk about backend engineers that have a deep knowledge of CI/CD and you don't do that on a mainframe. Also, Monzo are heavy users of Kubernetes, so again, no mainframe. [0][1] Starling use AWS and GCP [2] In addition, the cost of entry of a mainframe system is a high bar when you can spin up a server on Azure in seconds and deploy code to it in a handful more seconds and then scale it to the heavens in yet just a few more seconds... all for less than the hourly cost of the IBM salesman. I've yet to see any jobs that mention mainframes, Cobol or the like. [0] - https://monzo.com/blog/2016/09/19/building-a-modern-bank-backend https://monzo.com/blog/2016/09/19/building-a-modern-bank-bac... [1] - https://www.8bitmen.com/an-insight-into-the-backend-infrastructure-of-a-modern-digital-bank-monzo-architecture/ https://www.8bitmen.com/an-insight-into-the-backend-infrastr... [2] - https://blog.container-solutions.com/starling-how-to-build-a-bank-in-a-year https://blog.container-solutions.com/starling-how-to-build-a...