Profile image of johnklima
Flag of Portugal Lisbon, Portugal
Member since January, 2014
1 Recommendations

John Klima 

I am a highly experienced C/C++ programmer specialized in 3d graphics, games, and educational software for more than 15 years. I currently focus on apps and games for mobile devices and can deliver cross-platform solutions for Android, iOS, Windows, OSX, and even Tizen. I am an American living abroad in Lisbon, Portugal where I was formerly Lead Programmer for Biodroid Entertainment heading up the console division, having worked on titles for Wii and PlayStation3. My online published titles include "vSide" and the Jason Project.
$40 USD/hr
11 Reviews
  • 79%Jobs Completed
  • 100%On Budget
  • 98%On Time
  • 6%Repeat Hire Rate

Recent Reviews

  • image of Djlverse Learn to read picture words $2420.00 USD

    “I think the picture words app is even better than the previous word app.”

    Djlverse Flag of United States 3 weeks ago.
    • Mobile Phone
    • iPhone
    • Android
    • Game Design
    • C++ Programming
    • Hire me
  • image of Djlverse math testing IOS and Android app $2000.00 USD

    “Possibly the best of the 3 apps he has made for me.”

    Djlverse Flag of United States 4 months ago.
    • iPhone
    • Android
    • Hire me
  • image of Djlverse Develop a Mac Application $2000.00 USD

    “He can find ways to make a project better and make recommendations for specification changes.”

    Djlverse Flag of United States 9 months ago.
    • Mobile Phone
    • iPhone
    • Cocoa
    • Mac OS
    • Objective C
  • image of fmaz008 Electronic simulator/game. [Sealed]

    “Can't wait to hire him again for the next job ! Extensive knowledge and quality oriented programmer.”

    fmaz008 Flag of Canada 10 months ago.
    • C Programming
    • Game Design
    • Objective C
    • C++ Programming
    • ActionScript
  • image of buffdownunder Write an iPhone application that converts bluetooth headset into a microphone -- 2 $233.00 AUD

    “I highly recommend John”

    buffdownunder Flag of Australia 1 year ago.
    • Mobile Phone
    • iPhone
  • image of Day1McNellie Android + Apple Mobile Application $605.50 AUD

    “Was clear from the start that he was interested and understood what I wanted. Great to communicate with and exchange ideas, he also brought his own experience and innovation. Would hire again!”

    Day1McNellie Flag of Australia 1 year ago.
    • Mobile Phone
    • iPhone
    • Android
    • Game Design
    • Game Consoles


Lead Programmer

Jan 2007 - Jan 2011 (4 years)

Lead Programmer, Zblu Cops and Chiquititas Wii console games. Implemented a highly optimized game system expanding the Gamebryo 2.6 engine, featuring threaded background asset loading, A* path finding, realtime physics including spring forces, character AI, and an easy to use scripting system for interactive objects in-game.

New York University, Courant Institute.

Jan 2004 - Jan 2006 (2 years)

Lead the "Rapunsel Project" funded by the National Science Foundation, to design and build a computer game to introduce programming concepts to girls.

Adjunct Professor of New Media

Jan 2003 - Jan 2007 (4 years)

Taught several courses to Masters design students in the field of computer game design and production.



2004 - 2006 (2 years)


1983 - 1987 (4 years)


none (2000)

As my work bridges between the worlds of Art and Science, no professional certifications, beyond educational degrees apply


Kissing - A Procedural Approach

Keynote address at the Sandbox Symposium, ACM SIGGRAPH, 2007, outlining how I implemented a procedural animation system for the online world "vSide" - a social environment for teenagers.

My Top Skills

  • Mobile Phone 11
  • iPhone 10
  • Android 6
  • C++ Programming 4
  • Game Design 3
  • Audio Services 1
  • Game Consoles 1
  • Electronics 0
  • Electrical Engineering 0
  • Computer Graphics 0
  • Sound Design 0
  • Game Development 0

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