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Jeffrey R. Pickhardt, JavaScript Developer in San Francisco, CA, United States
Jeffrey R. Pickhardt

JavaScript Developer in San Francisco, CA, United States

Member since December 5, 2015
Jeffrey is an experienced software engineer who has worked at Google and Optimizely, among others. Skills wise, he's very experienced with Ruby/Ruby on Rails, Python, JavaScript, CoffeeScript, and HTML. He has extensive experience with A/B testing and conversion rate optimization.
Jeffrey is now available for hire



  • Python, 8 years
  • JavaScript, 8 years
  • SQL, 8 years
  • Optimizely, 6 years
  • Ruby on Rails (RoR), 5 years
  • Ruby, 5 years
  • Java, 4 years
  • React Native, 2 years
San Francisco, CA, United States



Preferred Environment

Mac OS X, Git

The most amazing...

...product I've made is perhaps an online collectible card game, Orbs CCG.


  • Senior Software Engineer

    2015 - 2017
    Online Freelance Agency
    • Created the Amazon Redshift data warehouse and ETL process.
    • Created features in Ruby on Rails and JavaScript.
    • Ran dozens of A/B tests with many successful conversion rate optimization wins.
    Technologies: Ruby on Rails, JavaScript, React, Redshift, ETL
  • Software Engineer

    2014 - 2015
    • Created new features for a financial services product.
    • Ran A/B tests.
    • Wrote code in Ruby on Rails, JavaScript, and Java.
    Technologies: Ruby on Rails, JavaScript, Java
  • Software Engineer

    2011 - 2012
    • Made many features for Optimizely, the leading A/B testing and personalization platform.
    • Wrote code in Python and JavaScript, deployed to Google Cloud.
    • Created a segmentation feature using a MongoDB back-end.
    Technologies: Python, JavaScript, AWS
  • Sales Engineer

    2010 - 2011
    • Supported the technical sales of Google Apps and Postini.
    • Regularly presented in front of ~100 CIOs and IT directors at regional marketing events.
    • Built a couple of open source projects for the Google Apps ecosystem: the Google Apps Shell Interface (Python + Tkinter) and the Postini EZCommand Shell (Perl).
    Technologies: Google Apps, Postini


  • Orbs CCG (Development)

    Online collectible card game - build decks from the cards in your collection, then play games with those decks.

  • DataDuck ETL (Development)

    An ETL framework from MySQL or Postgres to Redshift.


  • Languages

    SQL, Ruby, Python, JavaScript, Java
  • Frameworks

    Ruby on Rails (RoR), React Native, Machine Learning
  • Tools

  • Paradigms

  • Storage

    Redshift, PostgreSQL, MySQL
  • Platforms

    Amazon Web Services (AWS), Google App Engine
  • Libraries/APIs



  • Bachelor of Science degree in Physics
    2006 - 2010
    Stanford - Palo Alto
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