Dear Sir,
Are you looking for an experienced web developer to create a user interface with three sliders and an area to display suggested portfolios? I am Smith, a highly-skilled web developer with expertise in HTML5, JavaScript, Node.js, PHP, and Python. I am confident that I can create the user interface, logic, data feed, and integration to make your app work correctly. Furthermore, I can test and deploy the application, ensuring it is accessible to the public.
To demonstrate my expertise to you, I am offering a free demonstration of the solution even before the project is awarded. I am confident that I can deliver a successful product and look forward to your response.
Thank you for your time and consideration.
Sincerely,
Smith