JANSEN’s team of engineering professionals has established a reputation for unmatched technical expertise in the field of biomass, waste-to-energy, and chemical recovery combustion boilers.

Douglas K. Giarde, P.E.


Doug joins the Jansen team having spent over 35 years in the pulp and paper industry focusing on environmental, evaporation, energy savings and chemical processing solutions with a leading technology provider. His areas of expertise include process design, project management, construction management, corporate leadership, strategic planning and business development. Doug holds a B.S. in Chemical Engineering from the University of Washington, as well as an MBA from Seattle University.

Matthew A. Henderson, P.E.

Vice President, Design and Construction

As a mechanical engineer with over 24 years of experience in oil and gas, power generation, and pulp and paper facilities, Matt has developed expertise and skills in many areas including project management, engineering, definition, and scheduling. His duties at JANSEN have included numerous boiler system upgrade projects for overfire air, combustion air, mechanical duct collectors, economizers, fuel distribution, fans, pressure part modifications, and non-condensable gases. In addition, Matt has extensive on-site construction engineering experience ensuring that equipment for these projects is installed as designed.

Samit J. Pethe

Manager, Process Technologies

Samit has been a process engineer at JANSEN for over 20 years. He has been the lead process engineer on over 25 boiler combustion system, superheater, and economizer upgrades. Particular areas of expertise include performance enhancement, combustion improvements, emissions reduction, and heat transfer analysis. Some of Samit’s job activities at JANSEN include root cause and performance improvement evaluations, field data collection, combustion tuning, equipment start-up support, and operator training.

Stephen C. Johnson

Purchasing Manager

Steve has over 25 years of experience in supply chain and operational management. He started his career after college holding various positions gaining expertise in contract management, ERP systems, quality management systems, vendor development and international business. As Purchasing Manager, Steve oversees customer and vendor relations, contract management, daily procurement, and quality system compliance activities.

Mark J. McCabe

Sales Manager

Mark has 30+ years of application sales in the electric utility boiler, pulp and paper, process heat, and construction industries. His experience in combustion, air pollution control and emissions monitoring, and multi-variable linear processes brings a creative eye to problem solving. He helps customers identify areas and issues that are working against their production, safety, environmental and efficiency goals and works with them to develop a roadmap to operational success.

Paul W. Cloninger

Senior Mechanical Engineer

With over 20 years of engineering and project management experience, Paul is a key member of JANSEN’s design team. His areas of expertise include design of combustion system enhancements and boiler pressure parts for pulp mill and power generating facilities. Paul has been responsible for many design/supply/install projects where coordination between JANSEN, the owner, and the installing contractor is critically important to achieving a successful project.

John F. La Fond, P.E.


Offering over 35 years of engineering talent and technical experience, John specializes in combustion, air pollution control, and energy utilization.  He is JANSEN’s lead authority on Boiler MACT and CISWI regulations. His expertise includes comprehensive boiler design, combustion system modifications that enhance boiler performance and pollution control, and air/fuel delivery system analysis that maximizes performance and firing capacity. John was previously President of JANSEN from September 2011 to May 2019.  John is currently retired but still involved on a consulting basis.