T: 508.699.0710
E: info@castlehilltech.com


Wayne K. Pearson, PE
Mr. Pearson holds a B.S. in Chemical Engineering from Northeastern University . He has worked with the pharmaceutical industry since 1968 and has held a variety of positions in Process and Project Engineering, Engineering Management, and Business Management during his career. He has extensive experience with biopharmaceutical, parenteral fill and finish, solid dosage, and chemical API facilities.

Most recently, Mr. Pearson has served as Manager of Automation for Wyeth Pharmaceuticals on a $160 million Vaccine Development and Manufacturing facility. Mr. Pearson was President and CEO of Engineered Technologies, Inc before selling his interests and founding Castle Hill Technologies, Inc., a Professional Engineering Services Company doing business in Eastern US and Puerto Rico .

He is a licensed professional engineer in 10 states and is an accomplished design professional for chemical, mechanical, instrumentation, and automation aspects of pharmaceutical process plants.

Steven Johnson
Manager of Carolina Operations
Mr. Johnson holds a Bachelor of Science Degree in Nuclear Engineering and a minor in Asian Studies from the University of Virginia . He has spent the past 10 years of his career working in the pharmaceutical community supporting commissioning and validation operations on a world wide basis.

Mr. Johnson is an engineering professional well founded in the fundamentals of engineering and he is an accomplished linguist with the ability to converse in 6 languages. He is familiar with all types of equipment and systems including utility generation systems, process unit operation systems, and packaged pharmaceutical systems.

Steve is a hands-on engineer with practical operating and commissioning experience as well as design experience with these systems. He has worked with Allan Bradley process controls, Anderson Controls, and with Emerson Delta V controls and is skilled in the operation of these control systems.

Steve has been with Castle Hill Technologies since 2002 leading the Carolina Team. His experience includes commissioning and validation activities on Wyeth FSDF Vaccine facility where he is the principal manger of the interface between the Operations personnel and the Automation personnel. He has considerable experience with non-batch and batch DCS Systems including Emerson Delta V.

John Spohn
Manager of Puerto Rico Operations
Mr. Spohn holds a Bachelor of Science Degree in Mechanical Engineering from Rensselaer Polytechnic Institute. He has over 20 years experience in process equipment and automation/controls disciplines for the pharmaceutical and allied industries. He has served in many roles during his career including Engineering Management, Construction Management, and Automation Management positions. Mr. Spohn’s diverse experience includes Engineering/Design, Systems Integration, Commissioning Planning & Execution, and Qualification support activities.

John and his family live in Puerto Rico where he has been a key participant in establishing and growing the local presence of CHT. He has served as the Owner’s Chief Engineering Representative on numerous highly successful projects managing and leading the equipment and automation systems design, installation, and validation activities. He is a Subject Matter Expert in Parenteral System design and operation and has extensive experience in Solid Dosage Facilities. He is thoroughly familiar with batch S88 configuration and has planned and managed highly successful projects implementing batch operations for vial filling facilities.

Previous to his work in Puerto Rico , John was a principal commissioning engineer for equipment and controls on a large biopharmaceutical facility. He is familiar with the design and operation of most unit operations and process systems in this industry.