About the Ninjas

  • Yehoshua Coren

    Founder & Principal

    Yehoshua Coren
    Analytics Ninja LLC was founded by Yehoshua Coren out of a desire to bring his passion for analytics and success in Internet marketing to a larger audience. Yehoshua is a master of both Google Analytics’ implementation and analysis; taking deep dives into GA data to reveal actionable insights. While Yehoshua’s primary area of expertise is web analytics, he is a savvy and accomplished SEM specialist, utilizing a range of online marketing tools, technical knowledge, and insight to improve customers’ ROI.

    Yehoshua leverages Google Analytics in all of his online marketing activities for clients. PPC campaigns, SEO, Conversion Rate Optimization, and Social Media marketing are all improved by his web analytics based methodology. His holistic approach to online marketing makes Analytics Ninja a great choice for any the company looking to improve their bottom line.


    Yehoshua is a well-known contributor to the Digital Analytics and Online Marketing communities.  He has spoken at the following events:
  • 2016
  • 2015
  • 2014
  • 2013
  • David Vallejo

    Senior Implementation Specialist

    David VallejoA highly skilled Digital Analytics professional with over 10 years experience (and recommended by Brian Clifton), David has a keen understanding of how Google Analytics works and what types of data should be sent to GA. David is one of the most highly respected implementation specialists in the analytics industry.  David is the guy at Analytics Ninja who “makes things work”.  With meticulous care to detail and data quality, David ensures client success.  David is the creator of Analytics Debugger, an enterprise-class tool for auditing analytics implementations. David habla español de forma nativa y se encarga de atender a nuestros clientes de habla hispana.