Question Using IJob for building nested data structure

Hello, I have an Octree data structure (every node has eight child nodes) and I want to optimize its building using multithreading.

So, I have a recursion, when starting from top node I go down for few levels and run some code to create child nodes over and over again.

At some point of iteration I check colliders, which is also a quite heavy operation in terms of computation.

The question is, how do I apply Jobs here? My recursion function isn't able to schedule new Jobs inside, am I right?

And it's not possible to work with colliders, if I don't use DOTS physics (who does, it's preview)

Thanks.