Being the tech enthusiast I am, your project speaks directly to my interests and abilities. With over 7 years of experience in software development, particularly in C#, Java, and MySQL as highlighted in your project description, I am well-versed in developing robust and user-friendly software for businesses. Setting up your desired administrator panel, which tracks sales data such as serial codes, purchase dates, expiry details and offers various user plans is something I can handle without a hitch.
As a freelancer, I capture clients' needs and expectations astutely. Thus, I specialize in tailoring each project to meet unique business requirements like yours. Additionally, it’s important to maintain business-critical data's privacy. Hence, designing a local database for your PC-based software is an aspect I give high priority.
I wouldn’t just deliver the task at hand but everything that comes with it – thoroughness of testing to guarantee smooth operation, timely feedback for necessary maintenance and support whenever you need it. Choose me for a collaborative experience yielding efficient solutions with utmost precision. We should embark on this proyecto together!