As an IT veteran with a wealth of experience in full-stack and .NET development, I assure you that resolving your IIS server file uploading issue will be a walk in the park for me. Throughout my career, I've deployed numerous file uploading systems on IIS servers and have conquered every challenge encountered along the way.
In addition to my proficiency in Full Stack Development, including Front-end (React, Next, Nuxt, Angular) and Back-end (ASP/.NET Core, Node, PHP, Laravel), I am very competent with server management tasks. This includes configuring and managing servers such as those leveraging AWS, Azure, or Google Cloud Services which I've used for multiple projects in the past.
To tackle this specific problem on your localhost server that hinders it from working seamlessly on an IIS server, I will thoroughly analyze and debug the code to identify and resolve any compatibility issue. My aptitude for problem-solving coupled with my comprehensive understanding of Microsoft SQL Server (the database engine responsible for file uploads) will ensure a speedy turnaround time with impeccable results.