Senior Full Stack Engineer Python/JavaScript - Data Driven Marketing (Contractor) @ - client side JavaScript analytics integration and maintenance across 20 web properties - client side application development using plain JavaScript, React.js and Immutable.js - RedShift SQL data validation and technical troubleshooting - Python ETL and custom data integration - Node.js/Python api integration across internal and external platforms - Splunk logging integration and analysis - ExactTarget data integration and analysis From April 2015 to Present (9 months) San Francisco Bay AreaSenior JavaScript UI Engineer & Full Stack Python/JavaScript Developer (Contractor) @ - Client side Backbone.js and Marionette application development - test driven JavaScript development, Jasmine, Karma, Protractor, Selenium - mentoring junior JavaScript developers in test driven development practices - refactoring legacy JavaScript code to improve performance and maintainability From November 2014 to April 2015 (6 months) San Francisco Bay AreaSenior JavaScript UI Engineer & Full Stack Python Developer @ Test driven JavaScript and Python development for a modern electronic healthcare billing platform. Blueprint is developing a next generation healthcare billing platform for large scale hospital systems. We're using best of breed web technologies to deliver an amazing user experience across web browsers, tablets and desktops! From October 2012 to October 2014 (2 years 1 month) San Francisco Bay AreaSenior JavaScript UI Engineer (Contractor) @ Test driven JavaScript/Coffeescript development using Backbone.js, Marionette.js, RequireJS and Jasmine. Developing custom charting and data visualization solutions using D3.js and SVG along with SASS/Compass. From July 2012 to October 2012 (4 months) Full Stack JavaScript/NodeJS Engineer (Contractor) @ Developing responsive JavaScript applications that work across the web, iOS, Android and as hybrid desktop applications. Using Backbone.js, NodeJS, Thrift, Qt technologies (Qt5 and QML). Designing user interfaces in Photoshop to create lightweight application experiences that work the way users expect. From March 2012 to July 2012 (5 months) Full Stack JavaScript Engineer (Contractor) @ Re-architecting front-end application to an all client-side JavaScript architecture using Backbone.js & Statecharts. Designing new web application UI for customer facing virtual machine management platform. Back-end PHP development to expose APIs and JSON data for front-end app consumption. From October 2011 to March 2012 (6 months) San Francisco Bay AreaFull Stack JavaScript Engineer (Contractor) @ One man software development army specializing in pushing the limits of desktop class JavaScript apps built with Backbone.js, Marionette.js, Ext JS, Qt5, and QML. From February 2010 to October 2011 (1 year 9 months) Technical Writer & Ext JS Developer (Contractor) @ Worked with Sencha as an independent contractor to create developer guides, code examples and API documentation for their Ext JS javascript framework leading up to the launch of Ext JS 4.0. From October 2010 to May 2011 (8 months) Technical Marketing Engineer & Product Development @ Worked directly with senior executives and engineering teams to help (mt) develop and launch some amazing new cloud computing services using the latest virtualization technologies. New product launches and development initiatives included (gs) Grid-Server, (gc) Grid-Containers, (ve) Server and a customer favorite the (dv) Dedicated-Virtual Server. From December 2007 to February 2010 (2 years 3 months) Technical Customer Success Manager @ Provided technical account management to VIP clients with complex, high scalability, hosting solutions. Managed team of three in-house telesales representatives handling inbound inquiries via phone and email. Trained sales staff on new web hosting products and web development technologies. From December 2005 to December 2007 (2 years 1 month) Technical Marketing Engineer & Founder @ Acquired by Fluidata in 2005. Red Carpet Host was a boutique managed web hosting company focused on providing personal support to help growing small businesses scale their web applications. From October 2003 to November 2005 (2 years 2 months) Technical Marketing Engineer & Co-Founder @ ShopItOut was the first pay per click comparison shopping service for the automotive after market (The Fast and Furious crowd). ShopItOut connected consumers and merchants with product information and online sales leads in an information rich marketplace previously unavailable for this industry. From April 2002 to May 2003 (1 year 2 months) Technical Marketing Engineer & Founder @ Nextgadget was an online retailer that specialized in a niche segment of the consumer electronics industry. The business was well received by the media for its unique selection of products and innovative pre-ordering system. Products discovered by Nextgadget received exposure from numerous US media outlets including The New York Times and TechTV; as well as international news media including The UK Daily Mirror among others. From February 2000 to April 2002 (2 years 3 months)

David Feinberg is skilled in: JavaScript, HTML5, SASS, ExtJS, PHP, Zend Framework, Front-end Development, jQuery, Python, Tornado, Sproutcore, Sencha Touch, Backbone.js, HTML 5, Front-end