A few old examples below:

UAV mechanics / avionics

I interned at NASA Ames research center, where I did electrical and mechanical (3d printing) work to repurpose Army drones for airborne geoscience missions.

Laser diode drivers

Circuit Labs

I’ve helped teach several courses in electronics (digital and analog circuits, MCs), in undergrad at Bowdoin and as a graduate student at Cornell. I also developed new curricula, and designed and built the accompanying lab electronics.