Is My Past Experience Useful to Become an Admin?

I'm a Salesforce power user (7 years now). I work in finance.

I'm great at building reports and dashboards.

We switched to Financial Services Cloud and everything had to be rebuilt. I helped by writing user stories and testing everything the developers built.

My regular finance job is my priority, but I had fun doing those Salesforce projects. If I get certified as an admin, is any of my past experience that I described useful for job prospects?

I don't think they will let me work as an admin at my current company because they already have too many people including their own CTA.