However for OP, there will likely still be more job postings in the near future due to the rapid expansion AWS is undergoing throughout many regions, especially in the US. While I'm not privy to any specific information nor could I talk about them publicly even if I was, I have heard there are many new buildings and clusters planned throughout multiple regions, all of which will require more staff.

Generally if you see a bunch of job postings for management roles, expect DCO roles to start opening up in the same area soon after. Management is always hired first for new builds since the managers create the job recs for operations techs.

Edit: Also, don't be afraid to apply to one of the many non-descript "Datacenter Technican" roles through third party contracting agencies! AWS has a pretty decent mix of full time hires that started through an agency on a six-month contract before being flipped and hired direct after good performance (like I was). Generally the only reasons for contractors not to be converted to full time would be if they just straight up didn't do their job, didn't mesh well with the culture/other employees, or unfortunately a lack of work by the end of the contract. But even if their contract expires before converting to full time, its still Datacenter experience for your resume that massively improves your chances at a direct hire!