I have over 30 years of software development experience and can program for all operating systems. I mostly use the Qt/C++ framework which means that any program I write works on Windows, MacOS, IOS, Android and Linux. However, I also know and use C#, Objective C, Visual Basic, Java and other scripted languages. I can package those programs so they are easily installed on the operating systems. Security, network and user interfaces are amongst my specialities.
Contact me and we can discuss how I can provide your desired solutions.