I was a MatrixPilot contributor from 2013 to 2015, where I worked mainly on the multicopter controller and adding support for the AUAV series of flight controller boards. I also entered AVC 2013 with a fixed-wing entry running MatrixPilot on an AUAV3.
From 2015 through 2016 I was a PX4 firmware contributor, working mainly on multicopter, tailsitter and low-level driver code.
Since 2017, I have been working with ArduPilot, contributing to tailsitter support, the switch to ChibiOS and low-level driver work