421 Millennium - Eighteenth Edition TECHNOLOGY Joseph G. Marcinkiewicz has established his success as an engineer and entrepreneur for more than 33 years. He began working with power systems during his time in the United States Navy, where he served as an electrician’s mate from 1985 to 1988. After leaving the military, he joined Boeing as an electrical engineer. In 1992, Mr. Marcinkiewicz was hired by Emerson Electric Co., marking the start of a decades-long tenure with the company. He began as a senior electronic engineer, rising to advanced drive technology manager in 1995 and director of electronic engineering in 2000. He was named the company’s director of engineering in 2006 and remained with them until 2022, stepping down as an engineering fellow and respected leader. Early in his engineering career, Mr. Marcinkiewicz designed and implemented vibration welder control systems, including the groundbreaking power converter and control system. While at Emerson, he developed variable-speed heating, ventilation, and air conditioning drive and control systems for Caterpillar, leading to a successful product launch. In addition, he worked on a power steering project involving the control of permanent magnet motors. Alongside his business partner, Mr. Marcinkiewicz formed MarSum Solutions in 2022. Noting a high demand for power electronics and industrial aerospace transport, he created the company to address this specific need. Currently, MarSum is developing applications in aviation for flight vehicle electric propulsion, and Mr. Marcinkiewicz hopes to explore opportunities working with federal defense contractors. Mr. Marcinkiewicz holds a Bachelor of Science in electrical and electronics engineering and a Master of Science in systems, science, and mathematics from Washington University in St. Louis. Influenced by his diverse fields of study, he finds it key to consider the mathematical perspective when designing electronics and power and control systems, leading to a more efficient design process. Looking to the future, he intends to grow MarSum and establish it as a powerful player in the aerospace, automotive, industrial, power conversion and motion control industries. Millennium Magazine Featured Listee JOSEPH G. MARCINKIEWICZ CHIEF TECHNOLOGY OFFICER MarSum Solutions Troy, OH
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