Hey there,
Yes I can convert one sketch file to parallax website.
I'm a professional in website development (PHP, codeigniter, wordpress, joomla, e-commerce, MySQL, Javascript, Jquery, Ajax, HTML5, CSS) and web designing(corel draw, adobephotoshop, flash, adobe edge, Designing logos and banners, 2D animations) and I have Nine years of professional experience in both website development and designing.
Regards
Ravi