Kindly note that, this is discussion Topic only... Not to discourage anyone who is currently using Jira Server products.
Considering, Atlassian ending support of Server support after February 15, 2024 -What are the chances & career options for existing Jira Admin & Atlassian Tools supporting staff existing roles ?
I believe, some Data Center/ Server Jira Admin Job responsibilities may get reduce due to Cloud... Focus may with to training and also Atlassian eco system other Tools; Also, there could be few less Job positions for the Admins..
I think that the responsibilities will not become fewer, instead they will change. The focus will be on translating business requirements into configurations and integrations. It is just a different world.
There's still Data Center for now, although I expect Atlassian to keep pushing Cloud, and I think it's generally the best option for new customers. My team manages Server, Data Center, and Cloud (large org), and as we move to Cloud the desired team skillset goes away from Linux, AWS, database, and SRE skills and towards Jira and Confluence best practices. In my own team I'm finding that it's not an easy transition, but it's needed.
We should all focus on understanding the use cases for Jira users. Jira admins should have basic Agile certifications and knowledge, portfolio planning experience, and software development process understanding, as well as pro/con knowledge of direct competitors like Azure DevOps or the zillions of more recent Jira lookalikes such as Monday.com.