Jim has 35 years of experience in the processing of rubber and plastic. His work on rubber extrusion includes operation of hot and cold feed extruders, die design, feeding and takeaway operations, and process control. He has worked with equipment ranging from multiple small extruders for industrial products to triplex cold feed pin barrel extruders. His work on directed flow technology resulted in a head capable of forming curved extrusions and of quick die changes. Jim has written book chapters on extrusion of rubber and plastic and of composite materials and on metal injection molding.

He edited a book Innovation in Polymer Processing: Molding published in 1996. He has authored more than 60 papers, primarily on polymer processing and flow, and holds 14 patents. Stevenson has a Black Belt in Six Sigma methods and is certified in Design for Six Sigma, DFSS. Prior to joining Honeywell in 1996, Stevenson held various technical and management positions at GenCorp (formerly General Tire) for 18 years and was Director of Research at Trexel, a start-up company commercializing microcellular foam technology. Previously, he was an Associate Professor in the Chemical Engineering Department at Cornell University where he was a founding member of the Cornell Injection Molding Project and conducted research on polymer flow. He earned his B.S. in Chemical Engineering from Rensselaer Polytechnic Institute and M.S. and Ph.D. degrees from the University of Wisconsin-Madison.

He is currently a Fellow, Honeywell International, Morristown, NJ.