Jira Administrator Configuration (Including Jira Business - Jira Software - Jira Service Management)
Roles and Permission Configuration
Automate workflow (Using Automation for Jira or plugins. ex: Jira misc workflow extensions, Scriptrunner, Power Scripts, ect.)
Create Filter and Dashboards
Create Projects Templates an common or customized configurations.
Advicing in "Atlassian Product Best practices"
QA Delivery (I will test any new configuration or change that I am going to make with their evidences)