Mainframes used to be a companys proprietary core systems, setting it apart from other companies and serving as a source of competitive advantage. However, with the system expansion, it became increasingly complex. Programs evolved into black boxes, and there was a significant reduction in the number of engineers, making it more challenging to adapt to dynamic business environments. This is why modernization of mainframe legacy systems is imperative. To address all these challenges, TmaxSoft leverages its technical expertise to apply state-of-the-art technology to platform infrastructure, architecture, and functional structure. We are committed to providing new processes and services, suggesting a new alternative to the mainframe modernization market.