build an offline program -- 2

I am looking for a talented developer to build an offline program for me on the Windows platform. This program requires a user account system to be created and integrated. I need someone experienced in programming languages such as Java, C++ or Python to work on this project. The right person for this project needs to be experienced in creating user account systems and have a strong knowledge of one of the major programming languages. the program will be used for an SME architectural firm of a group of maximum 50 employee, in which task can be assigned, input and track of submittals, messaging, calender etc.