I've used libgdx[1] before, it's still fully supported and is being developed further. It is still fairly low level,but it has just enough things in it to make things like draw calls, vbos and shader management easier. That being said, I still ended up writing my own shaders for lighting and shadows, as far as I know there isn't anything in between libraries like this and huge engines like Unity/UE.

[1] http://libgdx.badlogicgames.com/