Perform a wide range of mechanical design, development, analysis, and review tasks (to include layout, selection, and sizing for clean rooms, multiple-zone VAV systems, simple constant volume systems, distribution systems (pumps, pipe, control valves, ductwork, diffusers, and registers, air handlers (with coils and economizers), fan systems, central plant systems (boilers, chillers, cooling towers), chilled water systems, packaged HVAC units, fume hoods, and dust collection systems, fire suppression systems, and pressure vessel systems as Lead Design Engineer. Work Environment, Physical Demands, and Mental Demands: This position involves work typical of an office environment with no unusual hazards; occasional lifting to 20 pounds; constant sitting with use of computer terminal; constant use of sight abilities while reviewing documents; constant use of speech/hearing abilities for communication; constant mental alertness; must possess planning/organizing skills and must be able to work under deadlines.