I can think of at least 5 "core" contributors (out of only 20 or so) off the top of my head who have a PL or systems background. Given some time, I could easily

I can think of at least 5 "core" contributors (out of only 20 or so) off the top of my head who have a PL or systems background. Given some time, I could easily find 10-15 more who are affiliated with the Julia Lab, Julia Computing or community regulars. Hell, most of the Julia Lab's projects are systems stuff.