[4] He worked at Sun Microsystems on numerous projects for the Java, XML and Solaris ecosystems, notably as the primary developer for Hudson and for Multi Schema Validator.
[8] As a result, on January 11, 2011, a call for votes was made to change the project name from "Hudson" to "Jenkins".
[9] The proposal was overwhelmingly approved by community vote on January 29, 2011, creating the Jenkins project.
[10][11] On February 1, 2011, Oracle said that they intended to continue development of Hudson, and considered Jenkins a fork rather than a rename.
Kawaguchi founded InfraDNA, Inc. in April 2010, which provided support and service for continuous integration using Hudson.