The Web Developer will be responsible for developing and maintaining web applications. The key responsibilities include front-end development with HTML5/CSS3, JavaScript/jQuery, and responsive web design. Proficiency in SASS or LESS is required. Back-end development involves PHP/MySQL, with experience in WordPress being essential and experience in other CMS or web application frameworks (Symfony or Laravel) being a plus. The developer should also be familiar with E-Commerce development (Magento, Prestashop, WooCommerce).