I've been programming since 1977 and I've worked in financial service firms for most of that time. I spent my first 10 years as a mainframe CICS systems programmer. The remainder has been in application software in LAN/WAN environments.
Lately, I've been most interested in workflow applications. One Of These Days I will have enough time to sit down and build a system based on my ideas :-) In the meantime, back to paying work.