Can't speak for other parts of the org, but Oracle Cloud Infrastructure (OCI) is growing fast. Most teams have a target to double+ staffing within 6 months, and from what I've seen, they're roughly succeeding with their goals.

I don't know that Oracle specifically works to transfer staff around (not been in a situation to know). The job boards _are_ open and available internally, and some of the OCI growth is happening via internal transfers. People from across the company are specifically reaching out to hiring managers.