Requirement: The customer had a legacy tool based on a very old version of Microsoft Excel®. The tool helped individual users to have a clearer understanding on where he/she stands on personal finance, especially in areas like retirement savings, managing educational expenses, etc. It was developed two decades ago and was no more maintainable. Being developed on a desktop spreadsheet platform, it was not scalable. In addition, many of the calculation models used in the tool were outdated and required modifications. Technology: C#.Net, Angular, PostgreSQL