Sean worked for the District as a seasonal Vector Control Aide in 2015. He joined the staff as a permanent employee in October 2015 providing service as a vector control technician and mechanic. In 2021, Sean transitioned to full-time mechanic work, which includes servicing the District's fleet of over 30 vehicles. Sean is one of the District's certified pilots for UAS, and he also is a mosquito fiseries specialist. Sean is a lifelong resident of San Mateo County.