Legacy System Analysis & Reverse Engineering

The contract involves a detailed analysis and reverse engineering effort focused on a legacy system built on the Unisys OS2200 mainframe, comprised of approximately 879,354 lines of COBOL 74 code. The primary objective is to thoroughly document the existing business logic, data structures, and system dependencies to facilitate a future modernization initiative. This work requires deep expertise in legacy mainframe systems and COBOL programming to ensure that crucial business processes and system interactions are accurately captured and understood. Issued by the Defense Finance and Accounting Service under the Department of Defense, the subcontract opportunity is classified under NAICS code 541511, which pertains to custom computer programming services. The work will be performed in Indianapolis, and interested parties must submit their responses by June 17, 2026. This project plays a critical role in enabling the Department of Defense to modernize and potentially migrate an essential financial system by first gaining comprehensive insight into its current operational framework.