One of Indonesia's companies engaged in investment management is PT PNM Investment Management (PNMIM). Entering the digitalization era, PNMIM intends to use an information system in web and mobile-based applications, currently known as fintech, making it easier for investors to conduct mutual fund transactions online. This application is known as SiJAGO. However, in the first quarter of 2020, it did not achieve the launch of SiJAGO to the public. The impact of not achieving the launch of SiJAGO to the public will be affected the adaptive competition in technological development. Besides, the investment that PNMIM has spent for constructing the SiJAGO development project will be hampered by meeting several targets from the top management of PNMIM. This research is to identify the criteria and success factors for Information Technology (IT) projects in application development in the financial sector industry (FSI) in the era of digital transformation. The SLR analysis and expert judgment results show ten criteria and 18 factors (grouped into five categories) of IT project success, using the waterfall life cycle, using PMBOK® guidelines in analyzing each process. In the subsequent development of SiJAGO, PNMIM, and IT vendors, SiJAGO developers can focus on the criteria and factors that can support IT project development's success. © 2021 IEEE.