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Member since January, 2014
2 Recommendations

John Klima

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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
20 reviews
  • 83%Jobs Completed
  • 100%On Budget
  • 90%On Time
  • 13%Repeat Hire Rate


Recent Reviews

  • image of twalters84 HTML Webview Mobile Android App Development $55.00 USD

    “We had originally hired another freelancer for this project and due to horrible communication, we had to find another freelancer and that is when we met John. We are very pleased with John's work. He was able to create an android application for us where the user clicks an icon on their mobile device and our responsive / mobile friendly website then displays within a WebView. The project itself was top notch in regards to quality. Communication was excellent; even though John is overseas, his English skills are outstanding. John is also top notch in terms of expertise and professionalism. Lastly, we would love to hire John again to add a push notification system on top of what he has already built. We hope to work with John for a long time. I highly recommend his C++ skills and mobile app creation skills to all future employers. Thanks John for delivering an excellent product. We look forward to more projects with you in the future! Happy new year!”

  • image of rickytorres Endless Game - Display & Disappear Text - Android & iOS [Sealed]

    “John was excellent from start to finish. It was the first time I have ever used freelancer and John made it easy for me to understand the process. On top of that, his experience in building apps meant my weekly requests to alter, tweak and edit the app was dealt with quickly. I am convinced another developer would not have been able to meet my expectations within the budget. I will certainly work with John again and look forward on doing so.”

  • image of Djlverse I need work done $600.00 USD

    “Well done.”

  • image of Djlverse Project for johnklima $500.00 USD

    “More work to follow.”

  • image of tidepool Write an iPad application $1800.00 CAD

    “I would work with John again, it has been a great first experience with a freelance developer.”

  • image of sanosverd Create a iPhone and iPad Game $100.00 AUD

    “Freelancer was very disappointing and did not complete nothing that I asked for. He was complaining that I shouldn't waste my time on writing to him to ask for the game progress. Terrible experience”


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.


  • US English Level 1


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