Hello, I'm Marcelo and I could make even a bonus for your project!
I have experience at creating games with Javascript, I used the frameworks:
Phaser, Cocos2Djs, Canvas(No framework at all), so it would be really easy for mastering other javascript game framework as Three.js.
Please notice that the time for completing this project could be a bit greater, as I still don't know what game needs to be done.
You can take a look into my profile, I have worked at educational games with Javascript for 2 years.
Mostly of the work I had on my job was converting Flash games to HTML 5, so it would go smoothly
If you wish to build your game at another language, I can develop it on Lua with the LOVE framework, which I made some distribution script for playing the game at web.
If my offer attracts you, I would like to say that I'm open to negotiation.
And I may ask wether I could put the project made into my portfolio for showing the world my worth.