Kansas City, MOLead Engineer at Medical Plaza Partners Past: Maintenance Supervisor at Highwoods Properties, HVAC Technician at J C Nichols Co /... I have been actively employed in the engineering field since 1972. More specifically in the power plant operations area and HVAC operation, installation and... I have been actively employed in the engineering field since 1972. More specifically in the power plant operations area and HVAC operation, installation and maintenance. I have worked in a supervisory capacity since 2002.