Mechanical Systems Engineer

Job Description
Position Summary We are seeking a Mechanical Systems Engineer to design, analyze, and deliver mechanical systems for buildings (HVAC, plumbing, fire protection, etc.). The ideal candidate will work closely with multidisciplinary teams to ensure system performance, energy efficiency, constructability, and compliance with codes and client expectations.
Key Responsibilities

• Develop mechanical system designs including HVAC, chilled water, boilers/chillers, air handling units, piping, ductwork, and ventilation systems.
  
• Prepare calculations (load, flow, pressure, etc.), equipment selections, specifications, and construction documents.
  
• Coordinate mechanical work with structural, electrical, plumbing, architectural, and fire protection disciplines.
  
• Review and evaluate performance criteria: system efficiency, indoor air quality, acoustic/humidity controls.
  
• Engage in energy modeling, life cycle cost analysis, sustainable design (e.g. LEED, WELL, energy code compliance).
  
• Participate in project meetings, site visits, and construction support to ensure design intent is met in the field.
  
• Mentor junior engineers and review their work.
  

Qualifications

• Bachelor’s degree in Mechanical Engineering (or related)
  
• Professional Engineer (PE) license preferred (or ability to obtain)
  
• Experience (3-7+ years) in building mechanical systems design for commercial, institutional, or industrial buildings.
  
• Strong knowledge of HVAC load calculations, fluid mechanics, thermodynamics, refrigeration cycles.
  
• Proficiency with CAD / Revit / BIM tools.
  
• Familiarity with codes and standards (ASHRAE, SMACNA, local building codes).
  
• Good communication skills; ability to collaborate with clients, stakeholders, and other engineering disciplines.
  

#MechanicalEngineering #HVACDesign #BuildingSystems #SustainableDesign #EnergyEfficiency #MEPEngineering #PlumbingDesign #FireProtectionEngineering #RevitMEP #ASHRAEPlease submit a resume for consideration. Only the most qualified applicants who provide a resume will be contacted. Must be eligible to work the U.S. without restrictions. If you would like to learn more about Manufacturing opportunities, contact Nate Goetsch at or email at
All qualified applicants will receive consideration without regard to race, age, color, sex (including pregnancy), religion, national origin, disability, sexual orientation, gender identity, marital status, military status, genetic information, or any other status protected by applicable laws or regulations. GPAC (Growing People and Companies) is an award-winning search firm specializing in placing quality professionals within multiple industries across the United States since 1990. We are extremely competitive, client-focused and realize that our value is in our ability to deliver the right solutions at the right time.