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Production and Development Manager
Service Manager
Senior Project Manager
Kamal Ghazi is a Project Manager with experience in mineral processing and industrial project implementation. He also collaborates closely with clients to ensure the successful integration of the STET Separator into their operations. Kamal joined STET in July 2015 as a Process Engineer and participated in designing and establishing the first-ever landfilled fly ash processing plant for Titan America in 2020. A mineral engineer by education, he earned a master’s degree from Tehran University and a bachelor’s degree from Kerman University.
Senior Mechanical Engineer
Scott Mechler is responsible for mechanical design work on STET’s electrostatic separator machines, focused primarily on research and development of new generations of separators. He joined the company in 2024 after a decade of experience in designing large high-tech industrial equipment in highly regulated design environments. Scott received a bachelor’s degree in mechanical engineering, with a minor in biomechanical engineering, from Northeastern University.
Office Manager
Electrical and Controls Engineering Manager
Tim Choi is the Electrical and Controls Engineering Manager at STET. He joined the company in 2017 as a Senior Electrical and Controls Engineer. Since then, he has contributed to developing control systems for separators, commissioning various balance of plant systems, and working on equipment development at the Needham facility. Tim has been in a managerial role since 2021. He holds a bachelor’s degree in electrical engineering from Hanyang University in Korea and a master’s degree in electrical engineering from the University of Texas at Arlington.
Pilot Plant and Laboratory Technician
Kristin Cappello joined the company in 2014 as a Purchasing and Accounting manager, added Materials Manager to her role, and became the Operations Manager in 2022. She is responsible for supply chain management, inventory and purchasing, customer relations, and operation planning. Previous to 2014, Kristin worked as an Office Manager and Executive Assistant in a corporate/family law firm and as a part-time Real Estate Agent. She received her bachelor’s degree in political science/pre-law from Northeastern University.
Lead Chemist
Process Engineer
Senior Food Technologist
Director of Process Engineering
Abhishek Gupta leads bench and pilot-scale test programs to develop novel applications of STET electrostatic separation technology. He also manages auxiliary equipment selection, process design, separator installation, and optimization for commercialized applications. Abhishek joined STET in 2014 as a process engineer. Before that, he worked at QD Vision, a nanotechnology company working with semiconductor crystals called Quantum Dots, to develop display and lighting products. He is a chemical engineer by education with a bachelor’s degree in chemical engineering from the Indian Institute of Technology (IIT) and a master’s degree in chemical engineering from Penn State University.
Director, Business Development
Tomasz Wolak is working to introduce STET technology for animal feed and human food industries outside the United States and for fly ash and minerals industries in Europe. Tomasz originally joined STET in 2019 as a Business Development Manager for Europe, focusing on human food and animal feed applications. He has worked in the food and feed industries in both engineering and operational roles, gaining insight on design, engineering, and manufacturing as well as operating and optimizing processing plants. Tomasz earned a master’s degree in mechanical engineering from the University of Science and Technology in Cracov and an executive MBA from Apsley Business School in London, and he participated in an advanced management and leadership program at Rotterdam School of Management.
Vice President, Business Development
Since 2018, Hervé Guicherd has served as Vice President of Business Development for STET, responsible for building, animating, and supporting the business development team. He has assumed many roles during his more than quarter century with the company, including International Business Development Director in charge of introducing STET products in new applications (e.g., mining) and new territories outside the Americas (e.g., India, East Asia); European Business Development Manager (based in Greece); and positions in supply chain and marketing. After an early career as a Navy Officer, Hervé held several positions in marketing and sales during his long involvement with technology-related companies. He received a business degree from the University of Bordeaux; a master’s degree in electrical engineering from the Institute Polytechnique of Bordeaux; and an MBA from the Darden Graduate School of Business at the University of Virginia.