Jira Service Management

[Edson Luiz dos Santos Junior]

I am the system leader, and I need to create a strategic training plan for myself and my developer, who have deep knowledge in Jira service management. 

In addition, what are the essential trainings and certifications to pursue?

[Jimmy Seddon]

Hey @Edson Luiz dos Santos Junior!

I'd start by going through the JSM learning path in the Atlassian University:
https://university.atlassian.com/student/path/968311-get-the-most-out-of-jira-service-management

If all of that seems pretty easy you might want to consider the ACP-420 certification:

https://university.atlassian.com/student/activity/2228140-managing-jira-service-projects-for-cloud#/page/670ed898a1887954d1e5d410

I hope that helps!