Your experience with aquariums will help in some respects, but hinder in other ways.
Knowing about how the nitrogen cycle works is a plus, but too many aquarium keepers make the mistake of trying to keep a pond hospital clean.
I'm not saying you will be doing that, I just mention it because it's quite common.
It's totally up to you how you build and maintain your pond. I do suggest doing a lot of reading on this site before you create your plan for building.
Most of us here strive for a pond that is as natural as possible. Thus, creating something that's fun, eye pleasing and little to no work as far as maintenance is concerned.
It's no fun having to rinse out filter pads every few days. That can take the pleasure out of it real quick.
Balance is imperative. The right amount of water, plants, fish, filtration, aeration are important.
I don't do much as far as maintenance. I filter with an upflow bog where lots of plants are grown. There are no filter pads to clean. I'll flush the manifold pipes once in a while, but that's it.