Keywords: Mechanical Engineer, HVAC Design, MEP Design, Revit, AutoCAD, IESVE, Project Engineer, Commercial HVAC, Healthcare Engineering, BSME, Orlando Engineering Jobs, Building Systems, Load Calculations, Construction Administration, AEC Industry. High-Impact Design: Execute hands-on design and engineering for complex HVAC systems, including cooling/heating load calculations, ductwork/piping sizing, and equipment selection (DX, chilled water, pumps, and cooling towers).