I'm not an official MIRI spokesperson here or something, but I'm a MIRI board member and I do a lot of work with MIRI (without being on payroll). My take, which someone else may turn out to correctly disagree:

1. We are not hiring as much since the pandemic. We are however still hiring for some niche positions, especially ones that can easily be remote and/or that do not require the in-person internships for getting started that we often used.

2. Separately, some but not all of our research programs are additionally not hiring as much lately for non-pandemic reasons, due to being in more of a "regroup and see what makes sense in terms of research directions, before possibly making hires and expanding again" place than they were last year. We should probably update our job ads but haven't been quite sure how and have been procrastinating therefore.

3. Buck is mostly no longer working at MIRI but is doing some contracting, including about processing job applicants I think.

4. Despite #1 and 2, I am aware of three hires made over the last few months, though all for niche positions assisting distinct people with distinct things. Also, various other bits of MIRI may turn out to be hiring at different times in ways that are hard for me and perhaps also them to predict. I do not have an official role in any of this, but if you'd like to talk 1-on-1 I'd be happy to, and it'd let me be aware of you if job openings later come up in parts of MIRI I'm connected to.

+1 to Anna's reply. I've poked Buck to make sure he gets in touch with you and confirmed he's still point person on getting in touch post-pandemic, and I've updated our Careers and Get Involved pages to note that we're hiring more slowly as a result of (1) COVID-19 and (2) the fact that we're re-evaluating some of our strategy.