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David Isaacson

and invite this freelancer
Flag of United Kingdom London, United Kingdom
Member since September, 2009

I have a Bachelor of Science degree with Honors in Physics and Geology and over 8 years of professional programming experience, including website design (both frontend and backend), system administration, data analysis, and API integration. I want to get your project done right. My goal is to create something useful, interesting, and good looking. I want to keep lines of communication open so you get what you want. To learn more about me, including my full resume/CV, and a huge list of technologies I'm proficient in, see my portfolio here, or view my full CV at

4.7 / 5
4.3 / 10

@dji

  • 100%Jobs Completed
  • 100%On Budget
  • 100%On Time
  • 25%Repeat Hire Rate

Recent Exams

  • Freelancer Orientation Top 1%
    95%

Top Skills

  • Python
  • C Programming
  • Visual Basic
  • iPhone
  • SQL
  • Perl
  • Javascript
  • .NET
  • Linux
  • Ruby on Rails
  • AJAX
  • Android
  • Matlab & Mathematica
  • Wordpress
  • Twitter
  • Amazon Web Services
  • HTML5
  • jQuery / Prototype
  • node.js
  • Physics

Recent Reviews

  • image of GeoReid GEOREID GIS Code #3 [Sealed]

    “It was a pleasure to work with dji again. He is a great communicator, striving to give his clients whatever they need and continues to stay connected after project completion to ensure smooth integration in to projects.”

    GeoReid Flag of Australia 2 years ago.
    • C Programming
    • Python
    • Cartography & Maps
    • Anything Goes
  • image of GeoReid GEOREID GIS Code #2 $190.00 AUD

    “I'll certainly be hiring David again. He worked hard to produce another ArcGIS toolset for me, wlooking forward to working with him again.”

    GeoReid Flag of Australia 2 years ago.
    • Python
    • Visual Basic
  • image of GeoReid GEOREID GIS Code $165.00 AUD

    “David surpassed my expectations in price, quality and delivery time. His communication and eagerness to please were were exceptional. Definitely hiring again for future projects.”

    GeoReid Flag of Australia 2 years ago.
    • Python
    • Script Install
    • Cartography & Maps
    • Geolocation
  • image of itsalldoable Simple database-driven iPhone App $650.00 USD

    “David did a fantastic job of implementing my requirements. He delivered high quality code ahead of schedule. He is a great communicator with a keen intellect. I found his ability to ask insightful questions really useful. Together, we clarified the requirements. The functional requirements were then accurately translated by David into well written code. His approach contributed significantly to the success of the project. I look forward to working with DJI again soon.”

    itsalldoable Flag of United Kingdom 5 years ago.
    • iPhone
    • SQL
    • User Interface / IA
    • Cocoa
    • Objective C
  • image of moshepc Convert PSD / Html / CSS to Joomla template $50.00 USD

    “Very talented ! Highly recommended. Provided a very fast and professional service. Thanks David”

    moshepc Flag of Israel 5 years ago.
    • Joomla
    • CSS

Experience

Software Engineer

Nov 2010 - Mar 2012 (1 year)

I created and deployed interactive internet marketing campaigns - mainly websites and Facebook applications - to meet the diverse and changing needs of clients. I was involved in the entire process, beginning with brainstorming strategies, implementations, user flow, and basic designs and wireframes. After the designers and UI guys had a crack at it, I'd implement the backend, usually solo, and usually in python and Django, but sometimes in tornado (asynchronous python) or node.js. I created a ton

Freelance Programmer

Jan 2009

I've done various short-term work for different clients, from simple CSS layouts to complex iPhone applications and .NET APIs. Usually these were prototypes of some sort or another. My most complex was building an iPhone application which autodiscovered and communicated with a .NET json API (which I also built), which in turn modified the database for an existing (somewhat mental) restaurant Point of Sale system, and also printed out receipts. Technologies used: Objective-C, C#, , JSON, i

Co-Founder

Aug 2007 - Aug 2008 (1 year)

Siafoo is a website to help programmers share code and experience. My business partner and I created, designed and implemented the entire thing. Almost all of the front-end implementation was mine. The site supports multiple browsers, including those without Javascript, CSS, or images (for the hardcore lynx users!). It was built using all open source (free) libraries (we only pay for storage & bandwidth). For more information, you can view a talk we gave to the Linux Users Gcoup of Davis: http://www.

Programmer/Researcher

Nov 2006 - Jul 2007 (8 months)

I worked on two major projects here: Earthquake loss modeling for California Custom dynamic map creation for the web Earthquake Loss Modeling for California Given an earthquake at a given location and magnitude, how much damage will be done and where? I collected data from a variety of websites and government sources, parsed it, and then correlated and interpolated loss amounts from previous quakes to determine loss per quake and average loss per year (both per area) Dynamic Ma

Student Programmer / Researcher

Jun 2003 - Sep 2006 (3 years)

I worked on three different projects here. Firstly, I created a system to display live Fermilab collisions graphically via a public screen. Secondly, I did research looking for the Higgs boson via the Higgs -> tau + tau decay channel. Finally, I performed system administration (IT) work, including converting from a legacy NIS system to Kerberos + LDAP, and building a High Performance Computing cluster from scratch. Technologies used: C++, C, ROOT, Condor, Ganglia, ROCKS, Kerberos, LDAP, Red Hat Lin

Education

Geology & Physics (with Honors)

2001 - 2006 (5 years)

Badges

  • All Star

    Receive a 5-star rating for a project.
  • The Adventurer

    Complete your first project.
  • All Star

    Receive a 5-star rating for a project.
  • The Adventurer

    Complete your first project.