Front End Developer

Front-End Developer (HTML/CSS/JavaScript)Rate: $55/hour on w2 only. Job Location: Philadelphia, PA. F2F Interview Required. Now requires online portfolio.Please send over candidates with all of the below skills: customer facing front end development, strong JavaScript, online portfolio of work/websites. More senior the better.Company Overview: This fast-paced employer is one of America's largest video, high-speed Internet, and phone providers. It also enjoys an international reputation as a leading media, entertainment, and communications company. The corporate culture presented by the employer provides an innovative and diverse environment for employees, and reflects the individuality of its customer base. Working for this company will guarantee access to innovative technology, and it has also been consistently competitive in "top places to work" lists.Job DescriptionThe front-end developer will be assigned to an e-Business development team to build cutting-edge user interfaces for customer-facing websites running on desktops, mobile phones, and tablets that integrated into Sitecore on ASP.Net (.NET IS NOT REQUIRED). This role will collaborate with user experience designers and back-end developers to create and enhance user interfaces for high-volume, large-scale web applications. The ideal candidate will have experience working in an ASP.NET development environment (using Visual Studio / TFS) using various front-end technologies (HTML, CSS, JavaScript, JQuery, AJAX, JSON). Experience with SiteCore implementations is desirable, though not essential.Responsibilities:Review user stories.Participate in planning sessions.Identify tasks related to HTML authoring and/or front-end development.Estimate effort for front-end development.Convert annotated visual designs (Photoshop) to web pages and associated assets (HTML, CSS, images, JavaScript, etc.).Create / maintain pattern libraries for pages / modules.Create / update ASP.NET markup (NOT code) to reflect the HTML authored for new / updated pages / modules.Collaborate with other developers on tasks related to back-end integration.Collaborate with user experience designers and back-end developers / architects to complete assigned tasks using an Agile methodology.Collaborate with front-end designers and back-end developers to analyze and optimize the performance of web pages.Ensure work products are delivered on-schedule and comply with best practices and standards.Perform other duties and responsibilities as assigned.Must Have:Expertise in rendering page designs (wireframes / visual designs) into web pages (HTML, CSS, images, JavaScript).JavaScript must be at the expert level.Developing interactive page features using JavaScript libraries and custom code.Exposure or strong propensity to learn Visual Studio / ASP.NET / Team Foundation Server (TFS). AGAIN.NET IS NOT REQUIRED.5+ years as a front end developer rendering page designs for large-scale, public-facing websites - HTML, CSS.5+ years working with JavaScript UI technologies - JQuery, AJAX, the DOM and JSON.Nice to Have:Knowledge and practical experience with MVC Front end development using SiteCore CMS.Consuming back-end / web service technologies – REST, SOAP, XML.Working in environments that apply the agile methodology.Creating and debugging designs for multiple browsers and devices (desktop, mobile, tablet).