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That sounds even more insane to me, but I guess most of that code does not really touch financial transactions, otherwise it would be a nightmare being responsi

• clintonb 6mo ago
  Ruby code touches financial transactions. Card payments were migrated to Java when I left in 2022. Non-card payments (e.g., ACH, checks, various wallets) were still processed by Ruby. PCI-related/vaulting code lived in its own locked-down repo. I think that was a mix of Go and Ruby. Once you have the foundations in place for account balances and the ledger, processing a payment isn’t that daunting. Those foundations, however, took a lot to build and evolve.
  • varun_ch 6mo ago
    > migrated to Java I want to know more about this
  • jamesfinlayson 6mo ago
    > Once you have the foundations in place for account balances and the ledger, processing a payment isn’t that daunting. Those foundations, however, took a lot to build and evolve. Pretty much. I've worked at places with PHP payment processing that worked just fine, and at a place with C++ payment processing (and no testers) and it worked just fine. I wasn't around when the systems were first built though so not sure if there were tears along the way.