Hello Hiring Manger, I am interested in work on your magneto task. I have done near about 15 project in magento 1 and 3 projects magento 2.
As per your requirement, Normally frontend data auto saved in magento default table. But If your want save custom data in custom table then we can create a module for this. I am experience in magento but new at freelancer. So If you give me change to work on your project. then I will give my best.