Foursquare announced in a blog post today that the company is heading West in search of “mission-style burritos, temperate climates” and “a full team of West Coast engineers.”

In July the location-based social networking site had moved its New York headquarters to a larger office after raising $20M in Series B Funding from Union Square Ventures, O’Reilly AlphaTech Venturesand Andreessen Horowitz. In order to attract the “best talent in the world,” (sorry, New York) the company is setting up a satellite office in San Francisco, where the company has been sharing space with the mobile credit card-swiping service Square. From the blog post:

In the past year, we had a major growth spurt: from about 100,000 to over 4.5 million users; from a single phone platform to six; from 50-person foursquare flashmobs to 1,000 person epic swarms; and we now have thousands of developers building on the the foursquare API. The biggest challenge: hiring fast enough to support that surge. Despite growing from 5 employees to 35, we can’t expand as quickly as we want.

Specifically, the company needs new server side software developers to scale the site’s architecture in order to handle the 30% monthly growth in its user base and to improve the site’s look and feel. To apply, click here.