Professor John Ritter teaches Geographic Information Systems (GIS) courses which entail vector and raster processing, Python programming, database development, mobile applications, web mapping and applications, as well as GIS Server management. He is an ESRI Desktop Associate, an ESRI Business Partner, and has achieved CTT+ Instructor Certification. He focuses on seeing students apply their GIS skills to real-world problems, such as quantifying community health concerns in Klamath County. Prior to joining Oregon Tech he was a Senior Research Scientist at the NASA-Langley Research Center, Hampton, VA.

He enjoys hiking, camping, cycling, and competitive swimming.