Dear Mr. Serrano,
I am submitting these documents in order to put my name forward for the Production Supervisor opening at your company. I was browsing through your website and found the listing on your employment page. For your convenience, my resume has been attached to this letter.
While I do not have any formal schooling, I have been in the supervisory capacity at a large company for more than sixteen years and I am only seeking this position because of the company going out of business. I know that I can bring the managerial skills that you are looking for and that I have the communication skills that are needed in order to be productive.
It is important for any company to have a great supervisory staff that can work productively with their team. For this reason, I know that I would be a great asset to your company and that I would bring the knowledge and skills that you are seeking.
I feel a meeting to discuss what we can both bring to the table would be in order. If you would like to set up a time to meet, you can reach me at (555)-555-5555. I have an open schedule and am available at your convenience.