Preston works as an IT Security Specialist at the Mauna Loa Observatory. Preston manages the Web Servers, IT security, Data flow, Networks of over 100 systems and technical support for MLO staff. Preston is also responsible for managing the ESRL surface ozone program. Preston is a principle webmaster and web developer for MLO. He also restores historical photos for archiving, creates multimedia software programming for the web. Preston also assits in outreach activities. Preston also assists primary observers in the routine observing schedule at MLO.