| OK, so I'm probably revealing something about myself... appreciate HN's value for what you say rather than who you are. But as you asked... Flexcube now owned by Oracle (core banking, basically a general ledger if used to that extent) and VisionPlus (credit cards) are done in multiple languages, but the core is COBOL. If you're in banking you probably have a guess who I worked for. These systems go deep into an organisation's nervous system, and in the case of Flexcube, for example, come from a prominent bank's nervous system. Most in-hourse mainframe programming today however is on the middle layer providing APIs with JSON feeds, heavy lifting left to 3rd parties largely with workforces in India and sometimes China. This is a world away from trading or investment management. While for a layman 'finance' is often a catch-all, banking IT and trading IT are different worlds. Java dominates investment/trading, with C# doing a bit but not much. C++ is mainly plugins for traders written for something not self-taught VBA that need to do things fast, but Java has largely filled that void supplemented by C#. Edit: Around 5-10 years ago, a lot of IT work in banking was about unifying each country's code-base around a common core, the larger the bank the more tedious the task. Now it is all about AML and KYC, if you're interested in banking non front-office space. ML is a joke, quants do what quants do and win 50% of the time. |