High Quality Content by WIKIPEDIA articles! EPAM Systems is a USA provider of offshore software engineering outsourcing services with software development centers located in Hungary, Russia, Belarus, Ukraine, and Kazakhstan. The company maintains European headquarters in Budapest, Hungary, with support and delivery operations in Frankfurt, Germany, Stockholm, Sweden, Zurich, Switzerland, and London, UK. EPAM provides software application and product development, re-engineering, implementation, testing, maintenance and support, as well as ASM and infrastructure services.