Last seen: Jul 24, 2014 12:45 PM EDT
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John Klima

Mobile Phone Developer - Computer Graphics Programmer

Username: johnklima

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Location: Lisbon, Portugal

Member since: January 2014



(7 reviews)

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1 user has recommended this freelancer.

My projects:

  • $233.00 AUD
    Profile image for Seller buffdownunder


    4 days ago

    I highly recommend John

    Project Description:I would like to have an app that lets me use a bluetooth headset as microphone and sends the audio to a either 3.5 mm output or bluetooth device. Muting any music playing would be a bonus. I want to use the app for personal purpose so the UI can be very simple...
  • $605.50 AUD
    Profile image for Seller Day1McNellie


    Jun 10, 2014

    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!

    Project Description:A Game suitable for both Android and Apple Mobiles (Galaxy Mobiles, iPhone etc). Basic design features include: - Game Play in the length of the screen only - Spheres with differing 'gravity' (gravity...
  • [Sealed]
    Profile image for Seller steverobinson


    Jun 6, 2014

    Job well done. great effort, went the extra mile even without me asking.

    Project Description:[This is a Private Project. You must be logged in to view the Project Description]
  • $555.00 USD
    Profile image for Seller julianglander


    May 31, 2014

    John's a real pro! Had a great experience collaborating with him on an iPhone app. He brought a ton of expertise to the project, as well as enthusiasm. One of the top freelancers I've worked with.

    Project Description:Hi there! I am recruiting an iOS developer to help me create a single-screen musical instrument (synthesizer) app. The main functions of the app involve developing a musical synthesizer in which the user can control the pitch, attack, decay, oscillation, and waveform of a musical note...
  • $222.00 USD
    Profile image for Seller CFAC


    Mar 28, 2014

    John is not only the best programmer I have ever worked with, but quite possibly the best professional period, from any field. He tackled a genuinely tough project with gusto and left me impressed.

    Project Description:I'm going to be integrating the BOINC client ( into some office competitions, and I need a streamlined version of it with features removed. Primarily, participants do not get to change their team or view the overall stats...
  • $246.00 USD
    Profile image for Seller DanSexton17


    Feb 2, 2014

    I am looking forward to a long working relationship with John.

    Project Description:[This is a Private Project. You must be logged in to view the Project Description]
  • $222.00 USD
    Profile image for Seller DeeN123


    Jan 30, 2014

    I had a lot of difficulties trying to find the right freelancer for my project. Many who bided did not even understand the requirements specified. However, John was the only one with a clear understanding of the project requirements and also bided on it with a good proposal on how he would handle the project. He was very consistent with his updates on the progress of the project. The best part about working with him is that he understood the requirements throughly and completed the project way before the deadline.He was very professional. I am very happy with the results and look forward to working with him.

    Project Description:-The basic idea for this project is to create a really simple GUI that enables the user to type a text in and have a 2D mouth image lip sync accordingly. -The speech engine used has to be Microsoft Speech API and you have to code it in visual studio using c/c++ language...
    John Klima has not completed any projects.
  • [Sealed] In Progress

    This is for the developpement of a non-3d game. (isometric, perspective or similar 3d looking 2d will be used, but no actual 3d anywere).The choice of technology is open, but the mandatory requirement are:- The project to be fully Object Oriented- The technology must allow full portability for the various modern plateforms (under Windows, Linux, Apple/iOS & Android, Steam)- The version of the technology must the most recent stable release at the time of the beginning of the developpementAdditional mandatory requirement:- Basic knowledge of electricity and electronic will be required by the programmer.- Ability to create "basic functional graphics". (While I"m not expecting the game to look good, you will have to create minimal graphics to prove your code to be working. At a later stage, a more professional designer might be hired to work on improving the visual of the game.- Have coding standard and produce english documented code.)Challenges to be expected:- Custom path finding techniques similar to games having teleport portals,- Algorythms for complex circular reference detection.- Snappable items placement on non-standards grids- Multiple locales(languages) support- Embedded webbrowser to read local HTML files- Rotation of items on a snappable grid- Collision detectionEach applicant will be:- required to show previous related work on games to show their ability to accomplish this type of project at a professional level.- asked a few basic questions to assess their level of understanding of electronic.Detailed mandate will be provided upon signature of NDA.

  • $611 USD In Progress

    I am looking for someone to help me create an iphone app for tarot cards. There will be 78 tarot cards with text descriptions and 10 different spreads. (See attached example for what a spread is). The cards should be laid out and the user can pick cards to fill the free spaces of the spread. It should be possible to click the cards and open them up. There should be different coloured backgrounds for the spreads and the back of the cards will have a coloured surface. We might need a few simple buttons. A simple text explains how it works. The user should be able to write a question before doing a spread (optional)We need an Icon as well as a flash screen created. There needs to be music playing - which can be muted. Reverse Cards option (Randomly displaying some cards upside down)There should also be a section displaying all the cards so the user can easily lookup the meaning of the cards (Each card has a text)

  • ₹7777 INR In Progress

    I want to develop an application in android and ios operating systems for English vocabulary. There would be hundred to two hundred words in data. I have prepared design myself. I am looking for person who can develop the source code and graphical layouts of this application. People who are experienced to develop this level of application, please get in touch with me asap.

  • £240 GBP In Progress

    looking for someone to develop an android app which uses the microphone to identify the sound of passing objects. using the doppler effect, we can calculate the speed of those objects from the change in tone when they pass, they can be rated by the volume of the object which passed, and the object should show a bell curve of volume - to identify truly passing objects.The app should identify a sound of increasing intensity, who"s frequency changes as it passes, then use the frequency change to calculate the speed and add to the list of passing objects, identified by time, maximum volume, and speed.

  • $451 USD 21 days ago

    I want to create several mobile app and want to do that with a coder that lives in PortugalI live near Santarem and would like to chat with you, please Sk ype me fast_change

  • $200 USD 29 days ago

    necessito de uma aplicação para o meu Website em que consultem produtos,recebam novidades e comprei através da mesma

  • £1250 GBP Jun 20, 2014

    Hi All,I am looking for someone to develop me a Personal Task Manager in C++ or any open source code which will enable the use of the programme in any operating system. My Task Manager includes a Calendar, Note, Reminder, Contacts & Finance Record keeping Application within the Programme. I know there are many free Task Managers available but I need something more specific. If this is of interest please contact me. Thanks, Malik

  • $1444 USD Jun 20, 2014

    i need one quick developer who can develop 3d game for me , pls send me your all 3d game sample , do not waste my time , serious bider wil apply for this who have sample thank you

  • $740 USD Jun 20, 2014

    reaction type game, for ios and android i have pictures and a video how the game is gonna be look like.i prefer dutch or turkish developers to bid..

  • $222 USD Jun 11, 2014

    I am looking for voice-over talents in native UK English and German for a TV-documentary. Please get back with what you can do and rate. Please mention your equipment and complete offering. Approx. 54 min footage, text ca. 25 pages (script style).Thanks

  • £222 GBP Mar 18, 2014

    a multiplayer game like tic tac toe but i want to add a little bit of ideas to it for a project.

  • $222 USD Feb 21, 2014

    Hello,I am looking for someone who can help me with making a simple game for Android.I am UX / UI Designer, so I will create all graphics for this, but I don"t know Java, so person who will win must do everything with the rest.Idea:That will be game with drawing finger on our smartphone"s screen. Functions:- Timer (how long time we needed for draw sth)- Drawing function - Ranking of all players with their times- Multi-levels ( 1 level has bigger brush, all of each other is harder and have smaller brush )- Ad"s functionand... that"s all :-)Tell me please how much that will be cost and how much time do you need for write it.If everything will be okay, then I send next order to next game.Cheers,David !

  • [Sealed] Jan 28, 2014

    I want to take out the camera from smartphone and connect it again over 1.2m long with smartphone.For this, I need MIPI extender to connect smartphone and camera.The condition is;1. the normal copper wire or enamel coated wires should be used for 1.2m length.2. If new components are installed, Those must be on smartphone side, none on camera side.3. This should be passed in EMI and EMC test.When you apply, you must explain how you can consider following; Show rough schematics. I want to check if it is available. If you can show the pictures which shows running board, I will release to you. Video is better.

  • £277 GBP Jan 20, 2014

    Create a game where obstacles are constantly coming towards the player and they have to scroll withing 5 set position e.g. 1 2 3 4 5 while the obstacles come towards him,they have to dodge them by either scrolling, ducking or jumping. The controls are either swipe or tilt the user will have the option. The game will be a freemium model with a shop where you can purchase add ons with the coins you collect. The game will have a few characters to choose from where the freelancer will design every character and item based on my input. I am looking for a freelancer in the long term where future updates and projects will be contracted to him and so on.

  • $155 AUD Jan 19, 2014

    I am looking to make an app where someone can take a photo of themselves using their Apple iPhone and then i want to apply an adjustable pattern layer on the photo like a stamp and then save the photo with all the layers to make a new photo.

  • $25 AUD Jan 19, 2014

    I am looking for someone to code me a simple pong game with a paddle at the bottom of the screen and a ball that hits off each of the sides and top of the screen. Each time the ball is hit by the paddle and each of the side of the walls the score will go up by one point. This will also have a highest score list of the top 10 scores.

    John Klima does not have any open projects.
    John Klima does not have any work in progress.
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Lead Programmer

Jan 2007 - Jan 2011 (4 years)

Biodroid Entertainment

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)

Research Scientist, Game Design and Production.

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)

Rhode Island School of Design

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



New York University



State University of New York College at Purchase




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.