Automattic is well known online for their plugins, including Jet Pack, Akismet, WooCommerce and more. They're also responsible for WordPress.com and Gravatar. They contribute to several open source projects. Employees work where they want, in more than 50 countries around the world.
Employees start on a two to six week contract project, to see if they're a good fit. This is followed by three weeks of support work for WordPress.com, a job which all employees do for one week annually. Employees can expect three to four weeks annually of travel to meet up with other employees.