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A wild guess would be that roughly 90% of all systems handling this are written in COBOL running on z/OS or IBM i. And that most of the developers are currently

by tolle 11y ago

A wild guess would be that roughly 90% of all systems handling this are written in COBOL running on z/OS or IBM i. And that most of the developers are currently close to 60, spending their free time with their grandchildren and not on Hacker News. I'm not much help either since I work with mortgages, and having it all explained during a lunch break might be a bit much. There are also, depending on company and country, rules and laws about what you can talk about.

zhte415 11y ago
There are still a lot of developers for these systems. Updates happen constantly and developers are constantly in need and training-up. For example, credit card legal and security compliance updates happen a lot with really strict deadlines that have to be adhered to, or else the credit card issuer gets into hot water. Some organisations choose to merge old features that differ by country get merged in a central trunk with flagable switches. The code bases are very active. My company (not going to say the name here) employ 500+ mainframe engineers, some working on new projects and codebases because mainframe is the preferred platform. If you or anyone else would like to get in contact regarding COBOL or Mainframe in general, especially getting work done, especially in finance, please find my email in my profile.
- jrcii 11y ago
  > There are still a lot of developers for these systems. I hear Initech is hiring.