Training and participating in Jenkins and the wider tester community are vital for long-term learning paths that lead to optimized environments. Here are a few relevant resources:
When starting with an online community, it is wise to first review and participate in the mailing lists. This allows you to judge your own standard and gradually become recognized. The mailing lists are summarized at http://jenkins-ci.org/content/mailing-lists. Once you are confident that you can productively participate, consider progressing to real-time interactions through the IRC channel at https://wiki.jenkins-ci.org/display/JENKINS/IRC+Channel. The ISTQB software certification body keeps example documentation on its website for its software tester exams. You can find the documentation at http://www.istqb.org/downloads.html.
Additionally, it is important to have internal trainings...