John Schuessler is currently an aerospace consultant. In May 1998, after 36 years of service to the U.S. Human Space Flight program, he retired from his position of Director of General Services for the Boeing Company in Houston, Texas. Earlier positions held were Director of Engineering and Project Manager for Space Shuttle Flight Operations for McDonnell Douglas in Houston. He was Program Manager for the Design and Construction of the NASA Neutral Buoyancy Laboratory and in 1997, he received the NASA Public Service Medal for his leadership on that project. He earned a Master of Science degree in Studies of the Future: Technology Forecasting, from the University of Houston at Clear Lake, Texas. He is a founding member of the Mutual UFO Network, Administrator for the MUFON Medical Committee and a member of the UFO Research Coalition Board of Directors. He has authored more than 100 technical papers, articles and book chapters.  He served on the IEEE Aerospace Policy Committee in Washington, D.C. since 1992. He is an Associate Fellow in the American Institute of Aeronautics and Astronautics (AIAA), and a member of the Society for Scientific Exploration (SSE), the Institute of Electrical & Electronics Engineers (IEEE), the American Association for the Advancement of Science (AAAS), and the Armed Forces Communications and Electronics Association (AFCEA). John currently resides in Littleton, Colorado, with his wife and their family.

He is the author of two books:
 UFO-Related Human Physiological Effects and The Cash-Landrum UFO Incident.