First Data Corporation
Designed, developed, implemented, supported and maintained complex financial transaction processing software systems in C and C++ on Unix (Solaris) using Oracle databases.
Designed, implemented and maintained a heavily threaded Java application services framework layered on J2EE and SOAP Web Services and the C++ interface objects to this system for both clients and servers.
As the most senior developer at my location, supported the development staff with expertise in software design, languages and tools and methodologies.
Worked extensively on OpenVMS applications, including porting of complex application systems from OpenVMS and Unix.