I dunno what your problem with these people is, but Jessie is a Docker maintainer and Bryan built dtrace and went on to do fascinating things with illumos and Joyent. Steve Tuck spent 10 years at Joyent, starting as a Sales Director and ending as President.

These are all serious people, and the first two have reputations built on strong technical contributions to (even ignoring the wild overuse of k8s for resume-driven-development) complex technical products.