If you want work alongside people experimenting with rejuvenation therapy, Calico labs works on that. They hire in-house software people and also of course use

If you want work alongside people experimenting with rejuvenation therapy, Calico labs works on that. They hire in-house software people and also of course use software provided by external companies. I haven't worked for them or with them directly, so I don't know anything else about it, but it might be one place to look. I'm sure there are others; they must have competition.