Mechanical Design Engineer

National Design Build Services is a mechanical design/build firm specializing in HVAC/R systems for commercial and light industrial facilities. The Mechanical Design Engineer – HVAC & Plumbing Systems is responsible for the design and engineering of HVAC and plumbing systems, ensuring compliance with codes and working closely with field teams and project managers.

Responsibilities:

• Design HVAC systems including air distribution, ventilation, and temperature control for commercial and light industrial facilities
• Design plumbing systems including domestic water, sanitary waste, venting, storm drainage, and specialty piping systems
• Support refrigeration systems design for cold storage and food & beverage facilities
• Perform equipment selection (RTUs, AHUs, exhaust fans, pumps, etc.) and system layout
• Develop ductwork, piping, and plumbing layouts, risers, and schematics in Revit
• Perform load calculations and airflow analysis for HVAC systems
• Ensure designs comply with applicable mechanical, plumbing, and energy codes
• Develop sequences of operation for HVAC and mechanical systems
• Coordinate closely with field teams to ensure constructability and installation efficiency
• Coordinate HVAC, plumbing, and refrigeration systems with structural, electrical, and architectural components
• Participate in clash detection and model coordination within Revit/BIM environments
• Support value engineering and system optimization efforts
• Participate in internal turnover meetings to define project scope, risks, resources, schedule, and budget
• Collaborate with preconstruction to translate bid concepts into executable designs
• Partner with operations teams to ensure alignment on system design and installation approach
• Conduct site visits to support quality control, resolve field issues, and assist with commissioning

Requirements:

• Bachelor's degree in Mechanical Engineering or related field
• 5+ years of experience in HVAC and/or plumbing system design
• Strong understanding of HVAC systems, air distribution, and plumbing design principles
• Proficiency in Revit for mechanical system modeling
• Working knowledge of mechanical, plumbing, and energy codes
• Self-motivated with strong time management and organizational skills
• Ability to thrive in a fast-paced, deadline-driven environment
• Strong communication and collaboration skills
• Experience designing systems for commercial and/or light industrial facilities (manufacturing, food processing, distribution, cold storage preferred)
• HVAC/R experience required; refrigeration experience strongly preferred
• Experience with large-scale or industrial facilities is a plus