Crescenta is a Minecraft worldbuilding server that uses a block protection system called Citadel. It is like the big civ servers where players protect blocks and build long term projects.
The owner is trying to keep the Citadel plugin and some related plugins updated and working on the new version. The plugins they use are not in a great state right now so they are working hard to fix them and keep the server stable.
They are looking for a real developer to help fix and improve these plugins and maybe make new custom mechanics later. The owner says there is a test server for development and there is actual payment for the work.
If you want a server that is about worldbuilding and protected builds and more serious civ style play then Crescenta is the kind of place that fits that idea.

