Daniel DeFelippi

Austin, TX USA



Developer and small business owner with almost 20 years experience on the web, specializing in secure single page applications using JavaScript, HTML5 and CSS3. Experience managing development and design teams. Total project development from back-end to front-end, including web performance optimization. Former black hat hacker.

employment history

jul 2010 - present passive.ly LLC

owner / freelancer

Providing performance optimization, web application development, consulting, and training. Specializing in front-end and JavaScript development.

oct 2013 - feb 2015 Spokefly Inc


Technical founder of peer-to-peer bikeshare marketplace. Built API-driven web and mobile apps using Rails and Cordova. Worked with cofounder to raise funding, develop brand, and build marketing strategy.

mar 2008 - feb 2011 GripMedia Inc

lead web developer

Lead of web team and senior systems administrator. Created framework to accommodate high traffic sweepstakes and contest websites with millions of visits per month. Additionally maintained and developed new features for client web apps including Flash-based quote system and API-driven XUL CRM-ERP with PHP backends.

nov 2007 - feb 2008 GripMedia Inc

web development contractor

Maintained company and client websites including converting designs to semantic HTML and CSS. Developed AJAX-based quote and configurator RIA for leading machinery manufacturer. Designed cross-client HTML email campaigns.

apr 2005 - mar 2007 US Secret Service

security consultant / ci

Provided training, consulting, and speaking engagements to US Secret Service and other law enforcement to assist in tracking credit card fraud and capturing identity thieves. Key player in evidence collection and suspect identification in Operation Rolling Stone.

jan 2004 - dec 2004 CompuMasters Inc


eBay electronics and technology sales business. Managed all aspects of business including accounting, sales, product acquisition, shipping, and two employees.


Monroe Community College 2006-2007

AS, business administration

Graduated with honors. One class short of an additional degree in computer science.

Rochester Institute of Technology 2000-2003

computer engineering

Computer science 1-4, software engineering, m68k assembly, data structures, discrete math, VLSI design, calculus 1-3, physics 1-3