I need a custom functionality to be build on my Wordpress-woocommerce site

I need a web programmer to code a functionality on my wordpress-woocommerce site. I sell dog collars and dog clothes. I need a functionality where the customer will be able to customize his product in real time. For example: We sell dog tag for dogs. He wants to write to customized the dog tag. He chose the dog tag he wants, he chose the color and then click on "customize". The customization functionality let him type the name of his dog or whatever he want. The dog tag is updated in real time. He can see what the dog tag is going to look with his message. He erase a letter , the letter is erased in real time. He can also change the font. Another example: We sell custom collar. The customer can chose the charms he wants and then order. I want that to be done in real time. The customer chose his collar, the size of the collar and the color. He then proceed to customized it. He can type the name of his dog and the charm (letters) appear in real time on the collar. He can chose the style of the letter he want. This is not the same thing as the dog tag. The letter are charms, so each letter is an image like this :[login to view URL]) Another example: The customer chose a t-shirt for his dog, he upload an image of the design he wants on the t-shirt and the place it on the t-shirt template. This is done in real time, he can see and place the design on the t-shirt. Another example: