I am the lead developer of Atomic Grader (stylized [Ag]), a massively parallel online platform for grading math tourmanents and enabling them to run on time. It is primarily used by the Berkeley Math Tournament and the Stanford Math Tournament, although it has also seen use in a variety of other competitions.
Reach out to nathan at atomicgrader dot com if your organization is interested in using it.
I regularly participate in puzzlehunts with teammate for large events and with Black Fedora Group for smaller ones. In addition to the events themselves, I am also a contributor to tph-site, a puzzlehunt framework that was used to run all past Teammate Hunts as well as the 2023 MIT Mystery Hunt.
Since 2017, I have been a volunteer coach for SFBA ARML at the annual nationwide American Regions Math League contest.
Reach out to nathan at sfbanorcalarml dot org if you are interested in participating, volunteering, or otherwise contributing. We are a 501(c)(3) organization.