I am looking for a co-developer to assist in programming a couple of games of the same sort as the one below:

http://game.projectneoscience.com/ (test/test if you don't want to create new)

The games are intended to work cross-browser and cross-device, with the intent to port to mobile via CocoonJS or a similar technology in the future.

Requirements: Due to restrictions on the contract, developer has to be a US citizen based in the US. Developer should have a portfolio of existing games built with ImpactJS or another HTML5/js framework. Full time freelancer is preferable, but will also consider part time freelance with an LLC or an extensive portfolio. The ideal developer would be knowledgeable of full stack development, preferably but not exclusively PHP, or at least a developer comfortable dealing with a client-server architecture.

Pay is market-rate and negotiable. The time line is spread over the next year and there is potential for more gigs to follow. Send links to portfolio samples and a way to contact you via Impact's messaging system (click on my username) if you are interested.