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[Remote] Mechanical Design Engineer

Work from home Full-time role Hiring

Note: The job is a remote job and is open to candidates in USA. 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

Skills

  • 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

Benefits

  • NDBS offers a competitive compensation and benefits package
  • Strong opportunities for career growth and advancement
  • Clear pathways for career advancement with autonomy and flexibility in an entrepreneurial environment

Company Overview

  • National Design Build Services offers energy-efficient systems, pre-construction, construction management, LEED and commissioning services. It was founded in 2007, and is headquartered in Maryland Heights, Missouri, USA, with a workforce of 51-200 employees. Its website is https://nationaldbs.com/.
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